Wegovy and Diarrhea: What Users Say

• Anonymous
• Taken for less than 1 month
• January 22, 2022

For Weight Loss (Obesity/Overweight) "Worst experience of my life. After the second 0.25 dose, I was up all night vomiting and diarrhea. The next day, I had chest pain, shaking, brain fog, stomach pain, more diarrhea, and had to go to the ER. After they gave me Benadryl and morphine, I started to feel better. Still have burping, gas, and acid reflux terribly. WILL NEVER TRY THIS AGAIN! It is not worth it to me! Wish it would hurry up and get out of my system."

• fin...
• Taken for 1 to 6 months
• January 17, 2022

For Weight Loss (Obesity/Overweight) "Took it for 8 weeks, made it through the 2nd titrated dose and couldn't handle it anymore. Nausea, gas, bloat, constipation, diarrhea, and it was worse at night while lying down. Never improved, but actually got worse by week 8. Not sure how anyone makes it to the full dose. Also did not drop a single pound. There were days I only consumed 600 calories and still felt awful. I read another review very similar and agree that you absolutely cannot eat anything spicy. Bland food days were better but there are not enough antacids and constipation meds in the world to make me want to lose 20 pounds this badly. Took my last dose 10 days ago and am still dealing with residual GI upset. Hope physicians are more forthcoming about the side effects and do not tell patients they happen but subside in a couple of days - they do not."

• Lor...
• Taken for less than 1 month
• October 3, 2023

For Weight Loss (Obesity/Overweight) "I was prescribed Wegovy for weight loss purposes. I’m 5’11, 225 pounds, with a BMI of 31%, so I can be considered obese. I’ve been on it for one week and have lost 7 pounds. I’m starting with the lowest dosage (0.25). First of all, the injection was completely painless (for me). I also inject Humira bi-weekly, so maybe I’m just used to it, but I was shocked to feel absolutely nothing. I questioned if I was doing it right, it was so painless. Do not let some testimonials scare you! I did a lot of research while waiting for the drug to come back into stock. 90% of what I read were complaints about vomiting, diarrhea, some people getting so sick they had to go off of it. Some of these reviews were written after only a week or two of the drug usage. So far, my personal experience has been completely different than what I’ve read. That could change as I go up in dosage. As of right now, the only side effect I’m experiencing is a complete lack of appetite."

• Bec...
• Taken for 1 to 6 months
• April 21, 2025

For Weight Loss (Obesity/Overweight) "I started at 0.25 ml mid-January 2025. After one month and no side effects, I was down 16 pounds. Second month I titrated up to 0.5 ml. No side effects and lost an additional 8 pounds. Third month titrated up to 1 ml. Three days in, I have been experiencing explosive, uncontrollable diarrhea, sulfur burps, and mild stomach cramps. Trying to control it with Pepto-Bismol and Imodium offered only a brief half-day respite, and then the diarrhea was back with a vengeance. Still losing about 2 pounds per week, but only sticking to the BRAT diet, supplementing with saltines and oatmeal. Water and Gatorade are my main sources of fluids as I am trying to stay hydrated. Decided to speak with the doctor and seek blood work and stool sampling just to make sure nothing else is going on. Depending on what comes of this, I hope to keep continuing on with this medication as it has helped me tremendously with weight loss, lowered my A1C, and boosted my self-confidence with respect to how I look and feel."

• Bec...
• Taken for 1 to 6 months
• April 21, 2025

For Weight Loss (Obesity/Overweight) "I started at 0.25 ml mid-January 2025. After one month and no side effects, I was down 16 pounds. Second month I titrated up to 0.5 ml. No side effects and lost an additional 8 pounds. Third month titrated up to 1 ml. Three days in, I have been experiencing explosive, uncontrollable diarrhea, sulfur burps, and mild stomach cramps. Trying to control it with Pepto-Bismol and Imodium offered only a brief half-day respite, and then the diarrhea was back with a vengeance. Still losing about 2 pounds per week, but only sticking to the BRAT diet, supplementing with saltines and oatmeal. Water and Gatorade are my main sources of fluids as I am trying to stay hydrated. Decided to speak with the doctor and seek blood work and stool sampling just to make sure nothing else is going on. Depending on what comes of this, I hope to keep continuing on with this medication as it has helped me tremendously with weight loss, lowered my A1C, and boosted my self-confidence with respect to how I look and feel."

• Ano...
• Taken for 6 months to 1 year
• April 20, 2025

For Weight Loss (Obesity/Overweight) "I started Wegovy in October at the lowest possible dosage and worked up to 1.7 by February. I had no side effects and very slowly lost weight, which I was fine with. I lost 35 pounds in six months. However, oddly enough, after five weeks at 1.7 with no side effects, I became quite ill. I started having the sulfur belches, followed by vomiting and severe diarrhea. I went to urgent care. They said it was a normal response and to take anti-diarrhea meds. I did. It got worse, to the point of diarrhea every 15-20 minutes. After six days of this, I went to the emergency room. They admitted me. I spent nine days in the hospital with severe dehydration, which caused my kidneys and pancreas to start shutting down. Docs felt I had a separate bacterial bug not caused by my shots. I was finally able to go home. My doctor had me start back at a safer .25 dose. I did, but immediately got sick again. I think I need to stop these meds, sadly, as they did originally help me, but I can’t go on this way."

• Bit...
• Taken for 6 months to 1 year
• March 23, 2025

For Weight Loss (Obesity/Overweight) "I started Wegovy in April 2024. I was 193 lbs at just between 5’1”-5’2.5. I had tried everything, but food noise and the fact that being so short, the calorie intake had to be so low to lose weight. Anyway, the first thing I noticed was a bit of nausea. That went away after a few days. I have had very minimal side effects. Sometimes a little nausea, constipation, or diarrhea. Nothing to really disrupt my life. For the first time in my life, I actually can tell when I am full. My IBS has been almost non-existent. I’m more awake. I have fewer sweet cravings. The food noise is still there, but my stomach is able to signal my brain that if I eat more, I will feel sick. I have lost to date 4/2024-3/2025, 63 lbs. I am just about to hit my normal weight goal. I knew how to lose the weight. I am someone who has a very difficult time shedding the weight with exercise and diet. I am super grateful for this opportunity to prove that a drug works so well."

• Sup...
• Taken for 6 months to 1 year
• January 4, 2022

For Weight Loss (Obesity/Overweight) "Pros - I've been on Wegovy for 7 months. It started working right away. Lost between 8-15 lbs a month. It mostly has affected my appetite (not feeling hungry). Have lost 65 lbs thus far. Cons - nothing noticeable until I made it to the 1.7 mg dosage, and it got worse on the 2.4 mg. Severe diarrhea and cramps a day after eating. I noticed this became more regular after the 2.4 mg dosage. It happens 4-5 days after the injection, only for it to clear up after I give myself the next injection. Any bismuth anti-diarrhea helps to clear this, but you have to remember to take it with almost every meal."

• 188...
• Taken for 1 to 6 months
• May 17, 2023

For Weight Loss (Obesity/Overweight) "Started Wegovy 3 months ago using the gradual phase-up method. From 0.25 mg dose for 4 weeks to 0.50 mg dose for 4 weeks, then 1.0 mg dose for 4 weeks. During the initial phase, I experienced mild nausea and some stomach irritation. With each increase, the symptoms got worse until finally, at the full 1.0 mg dose, I was so sick I thought I had stomach flu for 2 weeks continuously. The belching was horrible. The nausea caused uncontrollable vomiting, and I had frequent diarrhea. After 3 months, I lost 12 pounds and felt horrible every day. I've now reduced the dose to 0.5 mg but still suffer from nausea and stomach upset. I might cut back again, but I'm thinking I will quit. The way I feel all the time is horrible! I'm thinking I lost weight because of all the vomiting. Not recommended."

• Me ...
• Taken for 1 to 6 months
• January 25, 2022

For Weight Loss (Obesity/Overweight) "Nausea, diarrhea, constipation, sulfur burps, fatigue, loss of appetite, super sensitive to smells, I have to make myself eat enough. It's like morning sickness, only it's 24/7. Zofran helps for about 6 hours. Cannot tolerate much besides chicken broth and Brussels sprouts. No fried, fatty, oily, spicy foods. Need to stay hydrated with water. Ginger ale helps. I'm up to a 1 mg dose and 14th week. This nausea is constant and impacts my daily routine significantly. However, it is the only effective weight loss option that's worked in 26 years of diets and exercise and eating healthy. I will not give up. The weight is killing me, and I needed this medication. I started at 221 lbs. and now I'm at 194.3 lbs. BMI is close to pre-obesity, and I know I'll cry the day I hit it. Full disclosure, I'm disabled in part due to my weight. There is no way I could have worked and taken Wegovy with the severity of my nausea and fatigue. But the mobility and breathing issues are improving."

• Jen...
• Taken for less than 1 month
• January 3, 2022

For Weight Loss (Obesity/Overweight) "I started this weight loss journey with Wegovy 4 days ago. No nausea, but definitely have some diarrhea starting the second day. I will continue with the treatment unless the side effects change or worsen."

• Wor...
• Taken for 6 months to 1 year
• February 25, 2025

For Weight Loss (Obesity/Overweight) "Beginning weight was 234 and began at 0.25 in June 2024, and just began 2.4 today at 177. Been going up very slowly, but weight loss has slowed way down. Still have 17 pounds to lose, but prefer 27 more. Have gone from 2XL/Size 22 to size 14. Have dealt with nausea, headaches, occasional constipation/diarrhea, depending on what I eat. Small meals, five times a day, plus drinking lots of water is key. I get extremely tired the day or two after taking the shot. I take the shot at night, hoping to be at my goal weight by the end of May 2025. 63-year-old woman and all blood work now within normal limits."

• Cal...
• Taken for less than 1 month
• May 12, 2023

For Weight Loss (Obesity/Overweight) "My experience with Wegovy has been a rollercoaster. In the first week, the 0.25 mg dose was great. In the second week, I started feeling the side effects of nausea, burping, gas, diarrhea, and bloating. I noticed that I did eat more. Make sure your portions are small and stick to fruit and vegetables. Soups and not greasy processed foods. You may feel sick and will take longer to digest. I am currently reconsidering if I should continue. I am not sure if I want to experience the side effects at a higher dose. I feel terrible all the time and have a headache. I feel exhausted all the time."

• Fay...
• Taken for less than 1 month
• January 22, 2025

For Weight Loss (Obesity/Overweight) "I started Wegovy 2 weeks ago. I have acid reflux and constipation. I took 1 magnesium/citrate gummy to help with the constipation and ended up with severe cramping with diarrhea in the middle of the night. The acid reflux happens every evening, and acid reflux meds cause constipation. I’m not enjoying the Wegovy."

• Ddd...
• Taken for 1 to 6 months
• February 11, 2022

For Weight Loss (Obesity/Overweight) "I have been on this medication since August 2021. So far, I have lost 36 lbs. I have been on the max dose of 2.4 for going on 2 months now. Side effects I have experienced have been sulfur burps/gas, nausea, vomiting, diarrhea, and sensitivity on my back and scalp (sunburn-type feeling). Although I haven’t had the most pleasant side effects, I would still recommend this medication. Now that my body is used to it and I am up to the max dose, I haven’t had any of the side effects lately, besides occasional nausea. I have noticed the most weight loss on the 1.7 and 2.4 doses. Just this week alone, I have lost 5 lbs. I hope to keep losing at this rate. I am only 40 lbs away from my goal weight now. So far, I have not really changed much with my diet or exercise. I cook my meals at home, drink water, and walk a few miles a week, and that is it. If you can stick it out and get up to the maintenance dose, it gets better!"

• Eri...
• Taken for less than 1 month
• August 27, 2021

For Weight Loss (Obesity/Overweight) "Taking Wegovy for weight loss and prediabetic. Into the third week of 0.5 mg and tolerated it well so far. No severe nausea and a few bouts of diarrhea. However, I had gastric bypass a few years back, and my stomach is always off with dumping syndrome. In 18 days, I’ve lost only 4.5 lbs, and that is tracking macros and eating about 600 calories per day and keeping carbs under 80g. It definitely has taken my urge to eat away, and I have to force myself to eat. I don’t have intense fullness, as I believe due to my stomach size I already eat tiny meals like 4 ounces, so I'm not pushing my stomach and having the medicine cause me to be sick. I can tell each week the side effects do lessen. I would hang in there. I know the weight loss hasn’t been terrific, but I have to remember this could help me stave off becoming diabetic."

• Jol...
• Taken for 1 to 6 months
• November 24, 2024

For Weight Loss (Obesity/Overweight) "I started on Wegovy .25 mg mid-August and felt no side effects but no weight loss neither. Difficult stool movement right away. After 6 weeks, I started taking .50 mg after difficulty finding this dose in any pharmacy in Miami. I stayed on this dose for 4 weeks without any weight loss or bad side effects, other than constipation. Then I started taking 1 mg and immediately started feeling very bad: severe nausea and indigestion and bad diarrhea. Obviously, you can’t eat anything, so yes, I finally started losing weight, but felt so bad, I could not function, slept a lot, did not eat, was on the toilet a lot, and decided this was not worth it and stopped after two injections. Perhaps other people can deal with these kinds of side effects or they just react easier. Since I started on low doses for so long, I was disappointed the side effects were still so strong. After about three days (after stopping), I feel normal again but weight comes back quickly if you don’t have an iron will!"

• Avi...
• Taken for 1 to 6 months
• July 16, 2024

For Weight Loss (Obesity/Overweight) "I am 58, have IBS-D, no gallbladder, GERD, and am 60 lbs overweight. This is my second attempt at taking Wegovy. The first attempt was disastrous! I didn't make it through the first week before I was hit with diarrhea, nausea, acid reflux, dizziness, cramps, and had headaches. I missed four days of work and went to ER twice. The doctor did tell me to stop taking this, but I honestly did not think it was the Wegovy (I had not done any research on side effects). Once I got back to my normal state of digestive issues, I became proactive. I started back on Wegovy (.25 lowest dose) 6 weeks ago, but now I take a dose of Pepto-Bismol daily (twice a day the day of and day after the shot) and I take an OTC daily antacid. I still get mild side effects (nausea, headache, and fatigue) the day after the shot or if I overeat. I have not lost any weight at this dose so I am going up to the .5 dose next week. As others have said - everyone will react to this med differently."

• For...
• Taken for 6 months to 1 year
• May 17, 2022

For Weight Loss (Obesity/Overweight) "I started Wegovy in December 2021 at 281 lbs, and as of May 2022, I am weighing in at 246 lbs (35 lbs lost). I am on the full maintenance dose at 2.4 mg. I didn't notice many symptoms early on; however, as I got to the 1.7 & 2.4 mg, my side effect symptoms greatly increased - including vomiting, nausea, diarrhea, and a nasty burnt popcorn taste in my mouth. This medication will definitely cause you to lose weight as it completely takes away your appetite, but the combination of side effects, mostly the vomiting, makes me question if I will stay on this medication much longer. For reference, I take my medication on Saturday evening and suffer the side effects until about Thursday morning. From Sun-Wed, I find myself in/out of the bathroom throwing up when I attempt to eat the most basic of foods. I used to have a large passion for food, but I can't imagine eating some of my favorite things while these side effects take over. I would recommend for those suffering to lose weight with caution."

• Big...
• Taken for 1 to 6 months
• July 20, 2022

For Weight Loss (Obesity/Overweight) "I used to take Saxenda until my insurance would no longer cover it. Worked great. Lost at least 50 lbs. Now I’m on Wegovy, more or less the same side effects. Diarrhea and burps that taste like rotten eggs. On Saxenda, they went away once I was up to full dose. Right now, it’s my 3rd week on full dose, and I’m still getting those side effects, just not as bad. I’m sure they’ll eventually go away. One side effect I have and can’t find listed (which is what brought me here) is my skin is sore and tender. Not unbearable, but riding in a car and hitting bumps is quite uncomfortable. Anyone else experience this?"

• Nik...
• Taken for 1 to 6 months
• May 7, 2023

For Weight Loss (Obesity/Overweight) "Checking in about my experience on Wegovy thus far. Tomorrow, Monday, May 8th, 2023, will be my second box of Wegovy 0.25 mg. So my 5th injection. I’ve lost 6 pounds since I first started. My biggest issue is diarrhea and nausea. I get occasional stomach cramping. Otherwise, I too have noticed that drinking more water seems to help. Lots of saltine crackers for me. The first week, I was scared to eat. I felt like I had the flu. It wasn’t a good experience for me. Then, gradually it let up, and by that first Friday, I felt like myself again, but still ate with caution. I have no taste! It’s odd. I know I’m eating, but it’s like I’ve lost my sense of taste. I will update after these 2 boxes are complete and hopefully will have a total weight loss that’s up to date. I don’t own a scale, lol."

• Gab...
• Taken for 1 to 6 months
• July 9, 2022

For Weight Loss (Obesity/Overweight) "Horrible, I had smelly sulfur burps and nausea at 1.7 mg. After the 2.4 mg limit, I became violently ill for two days. It was projectile from both ends. Very embarrassing. After that, just constant diarrhea for days. Throw it in the garbage."

• blh...
• Taken for less than 1 month
• May 31, 2024

For Weight Loss (Obesity/Overweight) "First dose 0.25mg, had slight stomach pain/discomfort. Later that same night, my appetite disappeared. Just seeing a fast-food commercial on TV made me feel nauseous. I thought if that's the worst of the side effects that affect me, then I'll be very happy with that. By the next day, stomach pain and nausea increased. By 4:00 am, BAM! Diarrhea, severe stomach pain, projectile vomiting, headache, chest pain, severe itching mainly on the palms of my hands and arms. I truly thought 'this must be what it feels like to be poisoned!' I was scared. It is now the next day and I feel fine. A little tired from lack of sleep from feeling so sick. I think I will do my second dose next week...but I'm quite nervous of a repeat of feeling like I was dying from the stomach pains and vomiting. Will I continue with this drug?...jury is still out! On the positive side, I've already lost 5 pounds; but of course, I can't & don't want to eat, too much nausea and vomiting."

• Sli...
• Taken for 1 to 6 months
• April 1, 2022

For Weight Loss (Obesity/Overweight) "So I am 5'4" and I found myself at the weight I was when I delivered my children, 145 pounds. For three years plus, I desperately tried to approach my goal weight of 125 pounds, dieting and feeling miserable for 3 years. I told my doctor I was dieting and exercising and could not budge the scale. At 60 years of age, the weight just doesn’t come off like when you are young. I’ve been on Wegovy for 6 weeks and have lost 12 pounds-a miracle! Now at 133 pounds, I’m staying the course to my goal. I will say the nausea is the worst side effect and comes in intermittent waves. I have Zofran (ondansetron) for when I can’t take the nausea. One of the best side effects for me has been totally eradicating my diarrhea. I have irritable bowel on the diarrhea spectrum, and luckily I did not get the diarrhea side effect but more the constipation, which has totally normalized my GI tract! I am so happy about this and assume this is due to slowing gastrointestinal motility."

• Ste...
• Taken for 1 to 6 months
• March 14, 2025

For Weight Loss (Obesity/Overweight) "Been taking Wegovy for 2 months now. First month, very little side effects & lost 14 lbs. Second month, moved up to the 0.5 dose. Stomach issues started, mainly rumbling noises with diarrhea/constipation. Has gone on for weeks now (not days), so have referred myself to my GP."