[{"data":1,"prerenderedAt":901},["ShallowReactive",2],{"consent-copy":3,"nav-pages":31,"legal-pages":32,"post-\u002Fblog\u002F2026-10-foundayo-side-effects":43,"more-\u002Fblog\u002F2026-10-foundayo-side-effects":314},{"id":4,"acceptAllLabel":5,"acceptLabel":6,"categories":7,"customiseLabel":12,"extension":13,"manageLabel":14,"message":15,"meta":16,"policyLabel":24,"policyPath":25,"rejectAllLabel":5,"rejectLabel":26,"saveLabel":27,"stem":28,"version":29,"__hash__":30},"consent\u002Fconsent.md",null,"Accept",[8],{"key":9,"label":10,"description":11},"analytics","Analytics","How this site is used, so we can see which pages are worth keeping.","Choose","md","Manage cookies","We use analytics cookies to understand how this site is used. Nothing is set until you choose, and you can change your mind at any time.",{"body":17},{"type":18,"value":19,"toc":20},"minimark",[],{"title":21,"searchDepth":22,"depth":22,"links":23},"",2,[],"Cookie Policy","\u002Fcookie-policy","Reject","Save choices","consent","2","Piq7HR6cbbigctfnzHzhxMWVuCVC7jRUkJC-ki1KDaM",[],[33,34,37,40],{"label":24,"to":25},{"label":35,"to":36},"Privacy Policy","\u002Fprivacy-policy",{"label":38,"to":39},"Subscription Policy","\u002Fsubscription-policy",{"label":41,"to":42},"Terms of Service","\u002Fterms-of-use",{"id":44,"title":45,"body":46,"date":301,"description":302,"draft":303,"extension":13,"image":5,"meta":304,"navigation":305,"path":306,"seo":307,"stem":308,"tags":309,"__hash__":313},"blog\u002Fblog\u002F2026-10-foundayo-side-effects.md","Foundayo™ Side Effects: A Daily Pill Diary for the First Weeks",{"type":18,"value":47,"toc":293},[48,52,63,68,77,85,94,98,106,115,119,126,133,141,145,148,200,208,212,220,228,232,242,253,264,275,278,285],[49,50,51],"p",{},"A tablet instead of a shot sounds simpler, and somehow the first week can feel stranger. There is no shot day to brace for. You take the pill, then spend the day half listening to your stomach, wondering whether that queasy wave at 3 p.m. counts.",[49,53,54,55,62],{},"The short answer: the most common Foundayo™ (orforglipron) side effects are digestive. The ",[56,57,61],"a",{"href":58,"rel":59},"https:\u002F\u002Fdailymed.nlm.nih.gov\u002Fdailymed\u002FdrugInfo.cfm?setid=8ac446c5-feba-474f-a103-23facb9b5c62",[60],"nofollow","FDA prescribing information on DailyMed"," lists nausea, constipation, diarrhea, vomiting, indigestion, stomach pain, headache, a swollen belly, tiredness, burping, heartburn, gas and hair loss, and notes that nausea, vomiting and diarrhea were more common while the dose was being stepped up and decreased over time. A daily pill gives you a daily data point, so a short daily note is a useful thing to bring to your prescriber.",[64,65,67],"h2",{"id":66},"what-are-the-side-effects-of-foundayo","What are the side effects of Foundayo™?",[49,69,70,71,76],{},"Mostly stomach and gut. ",[56,72,75],{"href":73,"rel":74},"https:\u002F\u002Fmedlineplus.gov\u002Fdruginfo\u002Fmeds\u002Fa626059.html",[60],"MedlinePlus lists nausea, vomiting, diarrhea, constipation, heartburn, stomach pain, gas, burping, unusual tiredness, hair loss and headache",", and says to tell your doctor if any of them are severe or do not go away. It also names serious ones that need a call straight away.",[49,78,79,80,84],{},"The ",[56,81,83],{"href":58,"rel":82},[60],"prescribing information"," adds context from the two placebo-controlled trials it describes: among people on Foundayo™ who reported stomach side effects, most were mild or moderate. The same document carries a boxed warning about thyroid C-cell tumors and lists other serious risks, including pancreatitis, gallbladder problems, dehydration that can lead to kidney problems, low blood sugar (higher risk alongside insulin or a sulfonylurea) and allergic reactions.",[49,86,87,88,93],{},"Foundayo™ is new. Lilly ",[56,89,92],{"href":90,"rel":91},"https:\u002F\u002Finvestor.lilly.com\u002Fnews-releases\u002Fnews-release-details\u002Ffda-approves-lillys-foundayotm-orforglipron-only-glp-1-pill",[60],"announced it on April 1, 2026",", so its track record outside trials is short. That is one more reason your own dated notes matter: they describe you, not an average.",[64,95,97],{"id":96},"what-does-the-first-week-on-a-daily-glp-1-pill-feel-like","What does the first week on a daily GLP-1 pill feel like?",[49,99,100,101,105],{},"Foundayo™ is new: Lilly began ",[56,102,104],{"href":90,"rel":103},[60],"shipping it in April 2026",", so it has had only a few months in everyday use. What people starting a GLP-1 describe in general, pill or shot, is less one symptom than uncertainty: is this the medication, is it normal, and where do I even note it?",[49,107,108,109,114],{},"On a GLP-1 forum, a new starter ",[56,110,113],{"href":111,"rel":112},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fglp1\u002Fcomments\u002F1ultzer\u002Flost_50_pounds_and_a_dusty_cheating_husband_5\u002Fov71dhg\u002F",[60],"wrote",": \"I just started on GLP last month and am still dealing with nausea and fatigue so am having trouble going to the gym like I did before I started.\" (r\u002Fglp1)",[64,116,118],{"id":117},"do-foundayo-side-effects-go-away","Do Foundayo™ side effects go away?",[49,120,121,122,125],{},"In the trials, nausea, vomiting and diarrhea tended to ease. The ",[56,123,83],{"href":58,"rel":124},[60]," says nausea, vomiting and diarrhea were more frequent while the dose was being increased and decreased over time. That describes groups of people, though, not your own weeks, so only your notes can show your pattern.",[49,127,128,129,132],{},"Dose changes matter here. Your prescriber decides if and when your dose changes, and the ",[56,130,83],{"href":58,"rel":131},[60]," links the stomach side effects in the trials to the period when the dose was going up. So \"the first weeks\" can happen more than once: each change can feel like a small new start. Writing down the date of every change your prescriber makes lets you see whether a rough patch lines up with it.",[49,134,135,136,140],{},"If you want to see how people map nausea against their dose days, our ",[56,137,139],{"href":138},"\u002Fblog\u002F2026-08-nausea-day-two","guide to how long GLP-1 nausea lasts"," shows the same logging idea for weekly shots.",[64,142,144],{"id":143},"what-should-i-write-down-each-day-on-foundayo","What should I write down each day on Foundayo™?",[49,146,147],{},"Keep it to one minute a day, so you actually do it. A daily tablet makes the time of day your anchor, the way a shot day anchors a weekly diary. These notes can help your prescriber see what is going on:",[149,150,151,159,165,171,177,183,194],"ol",{},[152,153,154,158],"li",{},[155,156,157],"strong",{},"When you took the tablet",", and whether it was with food or without",[152,160,161,164],{},[155,162,163],{},"Any symptom",": what it was, when it started, how strong on a 0 to 10 scale, how long it lasted",[152,166,167,170],{},[155,168,169],{},"Fluids",", and anything you could not keep down",[152,172,173,176],{},[155,174,175],{},"The date of each dose change"," your prescriber makes",[152,178,179,182],{},[155,180,181],{},"Missed or late tablets",", with the date",[152,184,185,188,189,193],{},[155,186,187],{},"Energy and mood",", in a word or two (tiredness is on the ",[56,190,192],{"href":73,"rel":191},[60],"MedlinePlus list"," too)",[152,195,196,199],{},[155,197,198],{},"Birth control dates",", if they apply to you (see the FAQ)",[49,201,202,203,207],{},"A real entry can be this short: \"Tablet 8:10, with breakfast. Queasy 11:00 to 13:00, 4\u002F10. Two glasses of water, kept down. Day 9 since start.\" Over time, dated notes like these let your prescriber see your own pattern instead of a guess. Our ",[56,204,206],{"href":205},"\u002Fblog\u002F2026-08-pills-vs-shots","GLP-1 pill vs injection guide"," covers how a daily rhythm changes what is worth noting.",[64,209,211],{"id":210},"when-should-a-foundayo-side-effect-go-to-your-prescriber-right-away","When should a Foundayo™ side effect go to your prescriber right away?",[49,213,214,215,219],{},"A diary is for patterns, not emergencies. ",[56,216,218],{"href":73,"rel":217},[60],"MedlinePlus says to call your doctor immediately or get emergency treatment"," for ongoing pain in the upper left or middle of the stomach that may spread to the back, signs of a serious allergic reaction, vision changes, or pain in the right or upper middle stomach area, fever, clay-colored stools, or yellowing skin or eyes. MedlinePlus also says to call your doctor immediately about a lump or swelling in the neck, hoarseness, difficulty swallowing or shortness of breath.",[49,221,222,223,227],{},"Lilly's ",[56,224,226],{"href":90,"rel":225},[60],"safety summary"," adds one more: tell your healthcare provider right away about nausea, vomiting or diarrhea that does not go away, since losing fluids (dehydration) may cause kidney problems. Your notes on fluids and symptoms help here, but they are not a reason to wait for your next appointment.",[64,229,231],{"id":230},"faq-foundayo-side-effects","FAQ: Foundayo™ side effects",[49,233,234,237,238,241],{},[155,235,236],{},"How long does Foundayo™ nausea last?","\nNobody can give you a number for your own body. The ",[56,239,83],{"href":58,"rel":240},[60]," reports that nausea was more common while the dose was being increased and decreased over time in the trials. Log when it starts, how strong it is and how long it lasts, and bring that to your prescriber.",[49,243,244,247,248,252],{},[155,245,246],{},"Is hair loss a Foundayo™ side effect?","\nYes, hair loss is on the list. ",[56,249,251],{"href":73,"rel":250},[60],"MedlinePlus includes it"," among the side effects to tell your doctor about if they are severe or do not go away. Note when you first noticed it and whether it is changing, so your prescriber can see it next to your dose dates.",[49,254,255,258,259,263],{},[155,256,257],{},"Does Foundayo™ affect birth control pills?","\nIt can. ",[56,260,262],{"href":73,"rel":261},[60],"MedlinePlus notes"," that orforglipron may make birth control pills less effective, especially around the start and dose increases. Keep the dates of your start and each dose change in your diary, and ask your prescriber what applies to you.",[49,265,266,269,270,274],{},[155,267,268],{},"What if I forget a Foundayo™ tablet?","\nThe Medication Guide that comes with your tablets covers missed doses (it is also part of the ",[56,271,273],{"href":58,"rel":272},[60],"prescribing information on DailyMed","). In your diary, note the date and whether you took it late or skipped it, so a pattern of missed days does not stay invisible. For what to do about a missed tablet, ask your prescriber.",[49,276,277],{},"Tinsy is a wellness diary, not a medical device. It does not diagnose, treat or give medical advice. Always talk to your prescriber about doses, side effects and anything that worries you.",[49,279,280,284],{},[56,281,283],{"href":282},"\u002F","Tinsy"," treats pills as a first-class record, and logging them is free: choose pill at setup, tell Tinsy which tablet you take and how often, and dose reminders, calendar and history follow that rhythm. Tinsy Plus adds side effects with severity levels logged next to your dose, a cycle marker and a doctor report (PDF) with your whole treatment history.",[49,286,287],{},[288,289],"img",{"alt":290,"src":291,"width":292},"Tinsy owl mascot writing in a diary","\u002Fimages\u002Fowl\u002Fdiary.webp",170,{"title":21,"searchDepth":22,"depth":22,"links":294},[295,296,297,298,299,300],{"id":66,"depth":22,"text":67},{"id":96,"depth":22,"text":97},{"id":117,"depth":22,"text":118},{"id":143,"depth":22,"text":144},{"id":210,"depth":22,"text":211},{"id":230,"depth":22,"text":231},"2026-10-19","Foundayo™ side effects in the first weeks on a GLP-1 pill: what people notice, and what to write down each day to show your prescriber.",false,{},true,"\u002Fblog\u002F2026-10-foundayo-side-effects",{"title":45,"description":302},"blog\u002F2026-10-foundayo-side-effects",[310,311,312],"side effects","pills","first week","0Infk9v8KBfE5zFASFvQeH-bRjnS44Q4JxLrpZBNAnU",[315,633],{"id":316,"title":317,"body":318,"date":623,"description":624,"draft":303,"extension":13,"image":5,"meta":625,"navigation":305,"path":626,"seo":627,"stem":628,"tags":629,"__hash__":632},"blog\u002Fblog\u002F2026-10-first-week-on-ozempic.md","Your First Week on Ozempic®: What People Notice and What to Write Down",{"type":18,"value":319,"toc":616},[320,329,338,342,350,358,367,371,377,383,395,399,407,451,459,463,475,535,538,560,564,574,585,598,604,606,612],[49,321,322,323,328],{},"The pen is home from the pharmacy, the first shot is done, and now every small feeling comes with a question mark. One person in a semaglutide subreddit ",[56,324,327],{"href":325,"rel":326},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fozempic\u002Fcomments\u002F1sdgib4\u002Fcomment\u002Fogqcwur\u002F",[60],"admitted",": \"I literally just got my first injection+my hubby did it for me as I was chickening out.\" Week one on Ozempic® is a week of watching yourself closely.",[49,330,331,332,337],{},"The short answer: the first week on Ozempic® is a starting step. The ",[56,333,336],{"href":334,"rel":335},"https:\u002F\u002Fwww.accessdata.fda.gov\u002Fdrugsatfda_docs\u002Flabel\u002F2025\u002F209637s035,209637s037lbl.pdf",[60],"Ozempic® prescribing information from the FDA"," describes treatment starting low and going up step by step to reduce stomach side effects. It lists nausea, vomiting, diarrhea, stomach pain and constipation as the most common side effects. Your job this week is not to judge the result. It is to notice, write it down and bring it to your prescriber.",[64,339,341],{"id":340},"is-the-first-week-on-ozempic-about-weight-loss","Is the first week on Ozempic® about weight loss?",[49,343,344,345,349],{},"Its label does not frame it that way. The ",[56,346,348],{"href":334,"rel":347},[60],"Ozempic® label"," is written for adults with type 2 diabetes, describes treatment starting low and increasing step by step to reduce stomach side effects, and sets no first-week result to aim for. Week one is the starting step, whatever your goal.",[49,351,352,353,357],{},"Many people search \"first week on Ozempic® weight loss\", so it helps to know what ",[56,354,356],{"href":334,"rel":355},[60],"that label"," actually covers: blood sugar control in adults with type 2 diabetes, lowering the risk of major heart events in those who also have heart disease, and lowering certain kidney risks in those who also have chronic kidney disease. Weight management is not on that list. Why you were prescribed it is between you and your prescriber.",[49,359,360,361,366],{},"Some people do notice feeling full on less. ",[56,362,365],{"href":363,"rel":364},"https:\u002F\u002Fmedlineplus.gov\u002Fdruginfo\u002Fmeds\u002Fa618008.html",[60],"MedlinePlus"," explains that semaglutide injection slows the emptying of the stomach and may decrease appetite. If that shows up for you, it belongs in your notes with a date.",[64,368,370],{"id":369},"what-are-ozempic-side-effects-in-the-first-week","What are Ozempic® side effects in the first week?",[49,372,79,373,376],{},[56,374,348],{"href":334,"rel":375},[60]," names five most common side effects: nausea, vomiting, diarrhea, stomach pain and constipation. It also notes that in its trials, most reports of nausea, vomiting and diarrhea came during dose escalation, the step-by-step increase treatment starts with. It gives no day-by-day timeline, so your own dated notes are what show your pattern.",[49,378,379,382],{},[56,380,365],{"href":363,"rel":381},[60],", for semaglutide injection, adds heartburn, burping, headache and a runny nose or sore throat, and says to tell your doctor if any of them are severe or do not go away. That is why dates help: \"it keeps coming back\" is easier for a prescriber to act on when you can show when.",[49,384,385,386,390,391,394],{},"The same ",[56,387,389],{"href":334,"rel":388},[60],"label"," also lists fatigue among less common reactions. If tiredness shows up, log it next to your shot dates like any other symptom. If your queasiness seems to follow your shot day, our piece on ",[56,392,393],{"href":138},"nausea in the days after a shot"," shows how to write that down.",[64,396,398],{"id":397},"when-is-a-first-week-symptom-more-than-something-to-log","When is a first-week symptom more than something to log?",[49,400,401,402,406],{},"When it is severe, will not go away, or matches a warning in the ",[56,403,405],{"href":334,"rel":404},[60],"Ozempic® Medication Guide",". A diary is for patterns. The guide tells people to contact their healthcare provider right away for some symptoms, and those do not wait for your next appointment. It flags, among others:",[408,409,410,421,431,441],"ul",{},[152,411,412,415,416,420],{},[155,413,414],{},"Severe stomach pain that will not go away",", with or without vomiting, sometimes felt through to the back. The ",[56,417,419],{"href":334,"rel":418},[60],"guide"," links this to possible pancreatitis and says to call your healthcare provider right away.",[152,422,423,426,427,430],{},[155,424,425],{},"Nausea, vomiting or diarrhea that does not go away."," Losing fluids can lead to kidney problems, so the ",[56,428,419],{"href":334,"rel":429},[60]," says to tell your provider right away.",[152,432,433,436,437,440],{},[155,434,435],{},"Swelling of the face, lips, tongue or throat",", severe rash or fainting. The ",[56,438,419],{"href":334,"rel":439},[60]," lists these as signs of a serious allergic reaction that needs medical help right away.",[152,442,443,446,447,450],{},[155,444,445],{},"Signs of low blood sugar",", such as shakiness, sweating, dizziness or confusion. The ",[56,448,419],{"href":334,"rel":449},[60]," says the risk may be higher if you also take insulin or a sulfonylurea. If you do, ask your prescriber what to do if it happens, and log every episode.",[49,452,453,454,458],{},"In a semaglutide subreddit, one person on their starter dose ",[56,455,113],{"href":456,"rel":457},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002FSemaglutide\u002Fcomments\u002F1qci28a\u002Fstarter_dose_side_effects\u002F",[60]," that \"the side effects, specifically nausea and vomiting are honestly debilitating\" and asked strangers about changing their dose. That is one person's experience, not a rule. Your prescriber sets and adjusts the dose. If week one feels like that, call them, not the thread.",[64,460,462],{"id":461},"what-should-you-write-down-in-your-first-week-on-ozempic","What should you write down in your first week on Ozempic®?",[49,464,465,466,470,471,474],{},"Our ",[56,467,469],{"href":468},"\u002Fblog\u002F2026-08-glp1-week-one","week one guide"," covers the basics of starting any GLP-1. What is specific to Ozempic® comes from its ",[56,472,389],{"href":334,"rel":473},[60],": it is a type 2 diabetes medicine that slows stomach emptying, so blood sugar readings and your other medicines belong in the same log as your shots. A short log keeps it light:",[476,477,478,491],"table",{},[479,480,481],"thead",{},[482,483,484,488],"tr",{},[485,486,487],"th",{},"What",[485,489,490],{},"What to write down",[492,493,494,503,511,519,527],"tbody",{},[482,495,496,500],{},[497,498,499],"td",{},"Shot",[497,501,502],{},"Day, time and which spot you used",[482,504,505,508],{},[497,506,507],{},"Stomach side effects",[497,509,510],{},"When nausea, vomiting, diarrhea, stomach pain or constipation started and stopped, its strength from 0 to 10",[482,512,513,516],{},[497,514,515],{},"Blood sugar",[497,517,518],{},"Readings with the time, if your prescriber has asked you to check them",[482,520,521,524],{},[497,522,523],{},"Other medicines",[497,525,526],{},"Everything you take, including pills, and any change",[482,528,529,532],{},[497,530,531],{},"Warning signs",[497,533,534],{},"Any symptom from the Medication Guide list, and when you called your provider",[49,536,537],{},"The two Ozempic®-specific lines:",[149,539,540,546],{},[152,541,542,545],{},[155,543,544],{},"Blood sugar readings",", with the time, if your prescriber has asked you to check them. Bring them, with your shot dates, to your prescriber.",[152,547,548,551,552,555,556,559],{},[155,549,550],{},"Every other medicine you take",", including pills. The ",[56,553,389],{"href":334,"rel":554},[60]," advises caution with medicines taken by mouth because Ozempic® slows stomach emptying, and ",[56,557,365],{"href":363,"rel":558},[60]," asks people to keep a written list of all their medicines and bring it to every doctor visit.",[64,561,563],{"id":562},"faq-first-week-on-ozempic","FAQ: first week on Ozempic®",[49,565,566,569,570,573],{},[155,567,568],{},"How much weight do you lose the first week on Ozempic®?","\nThe ",[56,571,348],{"href":334,"rel":572},[60]," gives no first-week weight number to compare against: it is written for blood sugar, heart and kidney outcomes, and week one is the starting step. If you log your weight, keep it next to your shot dates and bring the record to your prescriber.",[49,575,576,579,580,584],{},[155,577,578],{},"Do I need to check my blood sugar in the first week on Ozempic®?","\nOnly your prescriber can tell you whether and when to check. The ",[56,581,583],{"href":334,"rel":582},[60],"Medication Guide"," says the risk of low blood sugar may be higher if you also take insulin or a sulfonylurea, so if you do, write down every reading with the time, and for what to watch for, ask your prescriber.",[49,586,587,569,590,593,594,597],{},[155,588,589],{},"Why do I feel full so fast on Ozempic®?",[56,591,348],{"href":334,"rel":592},[60]," notes that it delays gastric emptying, the speed at which food leaves the stomach, and ",[56,595,365],{"href":363,"rel":596},[60]," notes that semaglutide may decrease appetite. If you are skipping meals or barely drinking, write it down with dates and tell your prescriber.",[49,599,600,603],{},[155,601,602],{},"Can I change my Ozempic® shot day after the first week?","\nIf you do switch, log the new day and time so your side effect notes still line up with your shots. Before you move your shot day, ask your prescriber.",[49,605,277],{},[49,607,608,609,611],{},"You can keep this log in a notebook. ",[56,610,283],{"href":282}," keeps the shot side in one place for free: your shots, dose reminders, calendar and history, with a body map that remembers your last spot and suggests the next one. Tinsy Plus adds side effects with severity levels logged next to your dose, weight as a trend, charts and a doctor report (PDF) to bring to your first follow-up.",[49,613,614],{},[288,615],{"alt":290,"src":291,"width":292},{"title":21,"searchDepth":22,"depth":22,"links":617},[618,619,620,621,622],{"id":340,"depth":22,"text":341},{"id":369,"depth":22,"text":370},{"id":397,"depth":22,"text":398},{"id":461,"depth":22,"text":462},{"id":562,"depth":22,"text":563},"2026-10-15","What people notice in their first week on Ozempic®, the side effects its label lists, the signs not to wait on, and what to write down for your prescriber.",{},"\u002Fblog\u002F2026-10-first-week-on-ozempic",{"title":317,"description":624},"blog\u002F2026-10-first-week-on-ozempic",[630,310,631],"week one","tracking","J9jF4rk17G2yaDM8fe6_6MumPW22W-tnR6J_Rh2-76o",{"id":634,"title":635,"body":636,"date":893,"description":894,"draft":303,"extension":13,"image":5,"meta":895,"navigation":305,"path":896,"seo":897,"stem":898,"tags":899,"__hash__":900},"blog\u002Fblog\u002F2026-10-first-week-on-zepbound.md","Your First Week on Zepbound®: Side Effects Day by Day",{"type":18,"value":637,"toc":885},[638,646,655,662,666,674,683,687,690,704,711,719,723,730,736,749,753,760,769,772,776,779,825,836,840,850,859,869,871,881],[49,639,640,641,645],{},"Shot day. The first dose is in, and now you wait. One person on a GLP-1 forum ",[56,642,113],{"href":643,"rel":644},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fglp1\u002Fcomments\u002F1q15noq\u002Fwhat_a_difference_a_year_makes\u002Fo1cjgsd\u002F",[60]," after theirs: \"I just took my first dose today and this is all so very new to me.\" (r\u002Fglp1)",[49,647,648,649,654],{},"The short answer: Zepbound® is tirzepatide, a once-weekly medicine that acts on two hormone receptors, GIP and GLP-1, according to its ",[56,650,653],{"href":651,"rel":652},"https:\u002F\u002Fwww.accessdata.fda.gov\u002Fdrugsatfda_docs\u002Flabel\u002F2023\u002F217806s000lbl.pdf",[60],"FDA prescribing information",". The label lists nausea, diarrhea, vomiting, constipation, stomach pain, indigestion, injection site reactions and fatigue among the most common side effects. It also says when tirzepatide peaks after a shot and that it slows stomach emptying most after the first dose. Notice what you feel, write it down by day, and bring the notes to your prescriber.",[49,656,657,658,661],{},"For a medication-neutral overview, see ",[56,659,660],{"href":468},"week one on any GLP-1","; this page sticks to Zepbound®.",[64,663,665],{"id":664},"what-are-zepbound-side-effects-in-the-first-week","What are Zepbound® side effects in the first week?",[49,667,668,669,673],{},"Mostly digestive ones. The ",[56,670,672],{"href":651,"rel":671},[60],"Zepbound® label"," lists nausea, diarrhea, vomiting, constipation, stomach pain, indigestion, burping, injection site reactions and tiredness among the most common. In its clinical trials, most nausea, vomiting and diarrhea happened during the weeks when doses were being increased, and decreased over time.",[49,675,676,677,682],{},"MedlinePlus, in its ",[56,678,681],{"href":679,"rel":680},"https:\u002F\u002Fmedlineplus.gov\u002Fdruginfo\u002Fmeds\u002Fa622044.html",[60],"tirzepatide information",", says to tell your doctor if nausea, vomiting, diarrhea, decreased appetite, constipation or upset stomach are severe or do not go away. For some symptoms it says to call your doctor immediately, including stomach pain that will not go away (it may spread to the back), swelling of the face or throat, hives, or trouble swallowing or breathing. A diary is for patterns. Those are not diary entries; they are phone calls.",[64,684,686],{"id":685},"what-happens-in-the-first-two-days-after-your-first-zepbound-shot","What happens in the first two days after your first Zepbound® shot?",[49,688,689],{},"Nobody can tell you in advance what, if anything, the first two days will bring, which makes them a good time to start a dated log: the hour of the shot, then each change you notice and when it started.",[49,691,692,693,698,699,703],{},"In a tirzepatide subreddit, one person posted a ",[56,694,697],{"href":695,"rel":696},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fzepbound\u002Fcomments\u002F1vftj1g\u002Fday_2_update\u002F",[60],"Day 2 update"," after their first shot that began: \"Disturbed sleep last night.\" Later in the same post: \"Tummy is sore and mind cannot think of anything else.\" Another ",[56,700,113],{"href":701,"rel":702},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fzepbound\u002Fcomments\u002F1vfoo3c\u002Fhow_is_everyone_getting_their_electrolytes\u002Fp1s90or\u002F",[60],": \"I was low in energy for the first three days of my first dose.\" (a tirzepatide subreddit) These are single stories, not a forecast for you.",[49,705,79,706,710],{},[56,707,709],{"href":651,"rel":708},[60],"FDA label"," says tirzepatide levels in the blood peak at a median of about 24 hours after an injection, with a range of 8 to 72 hours. It does not say side effects follow that timing; your own notes can show whether yours do.",[49,712,713,714,718],{},"Day 2 can be emotional, too. The same ",[56,715,717],{"href":695,"rel":716},[60],"Day 2 poster"," added: \"I'm starting to question if I hurried with the decision to take it.\" Doubt is worth one line in your notes, and a question for your prescriber if it stays.",[64,720,722],{"id":721},"days-3-to-5-on-zepbound-is-this-normal","Days 3 to 5 on Zepbound®: is this normal?",[49,724,725,726,729],{},"Whether what you feel mid-week is normal for you is your prescriber's call. The ",[56,727,672],{"href":651,"rel":728},[60]," lists both constipation and diarrhea among common side effects; it does not say on which day of the week they show up. Your notes can.",[49,731,79,732,735],{},[56,733,389],{"href":651,"rel":734},[60]," also says tirzepatide slows how fast the stomach empties, and that this delay is largest after the first dose and becomes smaller over time. Whether that matches the early fullness you notice is a question for your prescriber.",[49,737,738,739,744,745,748],{},"A ",[56,740,743],{"href":741,"rel":742},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fzepbound\u002Fcomments\u002F1vfjify\u002Ffirst_week_on_zep_but\u002F",[60],"first-week post"," in a tirzepatide subreddit opened with: \"So far so good but guys…CONSTIPATION!!!\" If it lasts or gets severe, ",[56,746,365],{"href":679,"rel":747},[60]," says to tell your doctor. Write down which day it started and the day things moved again; that is far more useful than \"I was blocked up for a while.\"",[64,750,752],{"id":751},"hungry-again-before-your-next-shot","Hungry again before your next shot?",[49,754,755,756,759],{},"If your appetite seems to creep back toward shot day, you may wonder whether the medicine stopped working. The ",[56,757,709],{"href":651,"rel":758},[60]," gives tirzepatide a half-life of about five days, but it does not say how that relates to appetite late in the week. So treat end-of-week hunger as a pattern to record, not one to explain yourself.",[49,761,762,763,768],{},"Week one may be too early to see this rhythm; it is only one loop. In a ",[56,764,767],{"href":765,"rel":766},"https:\u002F\u002Fwww.reddit.com\u002Fr\u002Fzepbound\u002Fcomments\u002F1vfpkr8\u002Fis_this_normal\u002Fp1ra25z\u002F",[60],"thread titled \"Is this normal??\"",", one person said their appetite came back only after week 2, in a softer form: \"I don't need the same amount of food to feel satisfied but I do feel hungry if I don't eat.\" (a tirzepatide subreddit)",[49,770,771],{},"What turns a hunch into a pattern is the same note every week: the day of the shot, when you first felt it, and when it faded. Rate hunger from 0 to 10 each evening. If the last day or two before your shot look louder than the first days after it for several weeks in a row, bring that to your prescriber. Moving your shot day or changing a dose is their decision, not a workaround to try alone.",[64,773,775],{"id":774},"what-should-you-write-down-in-your-first-week-on-zepbound","What should you write down in your first week on Zepbound®?",[49,777,778],{},"A few lines a day, tied to where you are in your dose week: the shot, each side effect with its start time and strength, bowel changes, hunger and mood. The table below is a note template, not a forecast of what will happen.",[476,780,781,791],{},[479,782,783],{},[482,784,785,788],{},[485,786,787],{},"Day of week one",[485,789,790],{},"What to note",[492,792,793,801,809,817],{},[482,794,795,798],{},[497,796,797],{},"Shot day",[497,799,800],{},"Time of the shot and injection site",[482,802,803,806],{},[497,804,805],{},"1 to 2 days after",[497,807,808],{},"Each side effect, when it started, strength 0 to 10",[482,810,811,814],{},[497,812,813],{},"3 to 5 days after",[497,815,816],{},"Bowel changes by day, how meals sat",[482,818,819,822],{},[497,820,821],{},"The day or two before the next shot",[497,823,824],{},"Hunger 0 to 10 each evening",[49,826,827,828,831,832,835],{},"Every day, add one line about mood and anything that worried you. If you take birth control pills, ask your prescriber about them before your first shot; the ",[56,829,672],{"href":651,"rel":830},[60]," has a specific note on oral contraceptives. If nausea is your main story, ",[56,833,834],{"href":138},"how long GLP-1 nausea lasts"," goes deeper.",[64,837,839],{"id":838},"faq-first-week-on-zepbound","FAQ: first week on Zepbound®",[49,841,842,845,846,849],{},[155,843,844],{},"How long do Zepbound® side effects last in the first week?","\nNobody can predict that for you. In the clinical trials described in the ",[56,847,709],{"href":651,"rel":848},[60],", most nausea, vomiting and diarrhea happened during the weeks when doses were being increased, and decreased over time. Note the day each side effect started and stopped. If one is severe or does not go away, tell your prescriber rather than waiting it out.",[49,851,852,569,855,858],{},[155,853,854],{},"Why do I feel worse the day after my Zepbound® shot than on shot day?",[56,856,709],{"href":651,"rel":857},[60]," says tirzepatide levels peak at a median of about 24 hours after an injection, but it does not link side effects to that timing. Log the hour each symptom starts for a few weeks, then show your prescriber whether a day-after pattern is really there.",[49,860,861,864,865,868],{},[155,862,863],{},"Does Zepbound® make birth control pills less effective?","\nIt can. The ",[56,866,709],{"href":651,"rel":867},[60]," says Zepbound® may make oral hormonal contraceptives (the pill) less effective because it slows stomach emptying, and it has specific advice for the weeks after starting and after each dose increase. Ask your prescriber what that means for you before your first shot, or now if you have already started.",[49,870,277],{},[49,872,873,875,876,880],{},[56,874,283],{"href":282}," keeps your Zepbound® shots, dose reminders, a body map that remembers your last injection spot, and your calendar and history free. Tinsy Plus adds side effects with severity levels next to each dose, charts including your estimated medication level over time, a cycle marker and a doctor report (PDF). Hunger and mood notes can live in any notebook. More on our ",[56,877,879],{"href":878},"\u002Fzepbound-tracker","Zepbound® tracker page",".",[49,882,883],{},[288,884],{"alt":290,"src":291,"width":292},{"title":21,"searchDepth":22,"depth":22,"links":886},[887,888,889,890,891,892],{"id":664,"depth":22,"text":665},{"id":685,"depth":22,"text":686},{"id":721,"depth":22,"text":722},{"id":751,"depth":22,"text":752},{"id":774,"depth":22,"text":775},{"id":838,"depth":22,"text":839},"2026-10-12","Your first week on Zepbound®: what its label says about side effects and timing after a shot, and a day-by-day log to bring to your prescriber.",{},"\u002Fblog\u002F2026-10-first-week-on-zepbound",{"title":635,"description":894},"blog\u002F2026-10-first-week-on-zepbound",[630,310,631],"tMOX71jaj2GITOgSa2KEJypeZ07AkvAALHRjQEzPS_M",1792411993728]