Phentermine and Constipation: What Users Say (Page 2)

• Kre...
• June 3, 2015

Phentermine for Weight Loss (Obesity/Overweight) "I started taking Adipex 37.5 on May 29th, my first time taking this medication, but I can't seem to lose any of the weight gained from my second pregnancy. I tried dieting, exercising, and nothing happened. My current weight when I started was 248, and on the first day taking this, I felt like if I started moving, I wouldn't be able to stop. The energy it provides was amazing. So far, the only side effects I've had were dry mouth. I'm starting to get a little constipated, but I knew that was a possibility, so I'm prepared for it. I weighed myself today, and I'm down to 241. I haven't changed my eating habits, and I try to stay active for at least 30 minutes a day. I'm hoping to lose between 50-70 lbs."

• Ell...
• Taken for 1 to 6 months
• January 25, 2020

For Weight Loss (Obesity/Overweight) "Last year I took phentermine for 5 months. I lost 30 lbs in the first 2 months. In total, I lost 50 lbs. Beginning weight of 210, obese BMI. Side effects I experienced-when I first began, I took a half dose of 30 mg for a week because jumping right into a full capsule was too much, because it made my heart race and made me feel jittery. Throughout the whole time I took it, my mouth was ALWAYS dry, so I drank lots of water or chewed gum, mainly because dry mouth can speed up tooth decay. My jaw would feel like it had TMJ even if I hadn’t chewed for some hours. I would wake up with sore teeth as though I was grinding my teeth. I was constipated more than usual. I took the pill in the morning so I could sleep at night, it will keep you awake if you take it too far into the day. The side effects were annoying, but the weight loss was great. This medication made it so I never really felt hungry, and if I did, it would hurt my stomach to eat more than a fistful of food."

• mel...
• October 30, 2013

For Weight Loss (Obesity/Overweight) "I have been on phentermine in the past and lost 32 pounds in less than two months! Then I stopped for about 3 months because it made me extremely constipated. I just started taking it again Monday, October 28, 2013, and today is October 30th, and so far I've lost 4 pounds in 3 days. I recommend phentermine to those who truly want to lose weight. It has some side effects, but the only one I've experienced is constipation, so eat a healthy and high-fiber diet."

• Wen...
• February 17, 2015

For Weight Loss (Obesity/Overweight) "I started the medication 4 weeks ago. The first week, I was only taking half a pill. Second week, went up to a whole pill. I have side effects of dry mouth, unable to sleep more than 5 hours, and some constipation. With all this being said so far, I have found positives of losing 11 lbs, watching what I eat, drinking more water, and doing portion control. I have back and knee issues, so I am unable to exercise, so the weight loss will assist me so I can be active in the future. I look forward to starting another month of the medication and losing another 11. My doctor did say she will only prescribe for 3 months, so I will continue to monitor and take what I have learned and implement it in my future to continue with the 60 lbs I need to lose."

• Old...
• April 12, 2012

Phentermine for Weight Loss (Obesity/Overweight) "Started taking Adipex-P 4 weeks ago. Cons: constipation and really bad bouts of insomnia - better as time has gone on. Do not take with a blood pressure pill/water pill - you will feel like crap and your heart will try to burst through your ribcage. Pros: lost 31 pounds. 17 pounds - yes, 17 pounds in 1 week, though I do attribute that to the Adipex-P blood pressure/water pill. I found I could not take both at the same time or on the same day, so I stopped taking the blood pressure pill. My blood pressure is down to where it should be. Working out 4-5 times a week. 4-5 miles of cardio per workout plus weights. Probably cut my daily calorie intake by half. I plan on taking the pill for a max of 3 months, so by summer, I should be off the pill but still have a more active life."

• Tau...
• Taken for 1 to 6 months
• July 10, 2017

Phentermine for Weight Loss (Obesity/Overweight) "I am back with another update. I went on vacation, and even being surrounded by Caribbean food, cupcakes, and off my usual workout routine, I lost weight! I do suffer from constipation and thirst while on this drug. However, since May 6th, I have gone from 291 lbs to 265 lbs. I have lost over 60 pounds in four months, and I'll probably be at over 70 pounds of weight loss by the end of this month! Good luck to you all! Stay encouraged, eat well, and train your body! If you work on developing proper eating habits, the drug will take care of the rest!"

• Chi...
• Taken for 1 to 6 months
• September 19, 2016

For Weight Loss (Obesity/Overweight) "This is the second time I have gone on phentermine 37.5 mg. I took it back in 2013 on and off for 3-4 months and lost about 22 pounds. I am 5'2" and weighed about 156 when I started, 134 when complete. My big mistake after going off it was to start eating like I did before starting. Being menopausal, it's so easy to eat whatever looks good. My best advice to everyone is to remember that once you go off of it, you HAVE to alter your old eating habits or you will have wasted your time. Now I'm back on it again this year, almost done now. This time I went from 153 in April to 128 now, and I'm going to work hard to stay there. My worst side effects both times were dry mouth and constipation."

• Anonymous
• December 19, 2016

For Weight Loss (Obesity/Overweight) "I am 47 years old, 268 lbs, 5'3½. I started phentermine 37.5 on December 5, 2016. I weighed in today 12/19/2016 at 255 pounds, so I lost 13 lbs in 2 weeks. I always had a problem with portion control. I had to change what I ate and how much I ate, but this pill really does suppress your appetite. I have eliminated carbs and processed meats. I only drink water with lemons (lots of water), and I have given up wine and alcohol. Taking this pill has changed my mood, which I love. The only side effects for me are constipation and bad breath, so I use a mild laxative and chew plenty of gum, which solves the problem. This pill is wonderful. My first set goal is to get to 200 pounds, I will figure the rest when I meet that goal."

• Via...
• April 21, 2009

Phentermine for Weight Loss (Obesity/Overweight) "I started taking Adipex-P in June 2008. I was 193 lbs (F- 5'3'). Today I weigh 158 lbs. At first, I didn't really like the side effects: dry mouth, constipation, couldn't sleep, really bad headaches, so I went back to my doctor about a week after starting the pill. I had lost 10 lbs, I didn't want to stop. The doctor suggested I cut the pills in half and to try to eat and drink more often. It turned out that it worked for me. I would take a 30-day supply, cut the pills in half, and I don't do weekends. After that 30-day supply was done, I get off the pill for a month to make sure I don't just regain the weight. Oh, and I don't exercise or eat healthy, I just watch how much I'm eating. Also, no soda."

• hyg...
• Taken for 1 to 6 months
• May 23, 2015

For Weight Loss (Obesity/Overweight) "I started taking phentermine 37.5 mg, 1/2 tablet in the morning, along with a water pill and chromium picolinate a month ago. I was advised to start out taking only half a tablet for as long as possible since the body can build up a resistance to it. When and if I need to, I can take the full 37.5 mg daily. I went to the Dr. today for my one-month checkup and to refill my meds. I lost 17 lbs!!! The worst side effects are dry mouth and constipation. I'll suffer through the side effects for the energy burst I get from the phentermine and weight loss."

• Boy...
• Taken for less than 1 month
• April 5, 2017

For Weight Loss (Obesity/Overweight) "I started taking Adipex exactly 4 weeks ago today, and I am officially down 22 pounds. I started out at 5 feet seven and 184 pounds, and as of this morning, I now weigh 162 pounds. This pill has given me an immense amount of energy and has actually improved my mood and my overall sense of self-worth. It really is a miracle worker, however, all good things have downfalls as well. I have become extremely constipated, and I have to take a stool softener and MiraLAX just to consistently go to the bathroom. The first three weeks, I had the most horrible cotton mouth I've ever experienced before, and in the first two weeks, I had the most awful taste in my mouth. Most importantly, I've just recently started having some problems with my blood pressure going up, and I actually had tachycardia last night while I was at work. I'm already on a blood pressure medication, but I had it under control before I was allowed to start this pill. I am not sure if it's the medication because it was literally just an onset with the blood pressure and tachycardia. I also just got off of antibiotics for tonsillitis. I live and work in a very high-stress environment, and let's just say I was at work having a very bad night when this happened. Overall, I do recommend this medication, but only if you seriously need it. I have a family history of obesity, diabetes, and high blood pressure, so I was wanting to nip it in the bud before it got to that point."

• Twe...
• Taken for less than 1 month
• September 27, 2016

For Weight Loss (Obesity/Overweight) "I started Adipex, generic phentermine 37, on Tuesday, 9/20/16, at like 6 pm. First mistake... so I was up all night, literally. I didn't sleep, actually, I haven't slept more than a couple of hours at night all week. Definitely lots of side effects: heart beats abnormally sometimes. I also feel very alert. I took my 2nd dose on 9/23/2016 in the morning. Starting weight was 223 lbs, I'm at 213 today, 9/26/2016, so I lost 10 lbs in 6 days. I get nauseous by the smell of most foods, I can barely eat. I have absolutely no appetite. I have major constipation, but I'm losing weight, though. So my ultimate goal is 160. This is my 2nd time on the medicine, and I lost about 30 lbs the first time back in 2012, so wish me luck. I will try and update again soon."

• Tgo...
• Taken for 1 to 6 months
• March 30, 2014

For Weight Loss (Obesity/Overweight) "Started at 254 lbs on March 6, 2014, and now 236 as of March 30, 2014. I still have a long way to go, but so far, so good. Side effects: constipation and dry mouth. I eat less than 1,200 calories per day."

• Geo...
• Taken for 1 to 6 months
• August 30, 2015

For Weight Loss (Obesity/Overweight) "I started on this medication (37.5 mg) on March 12, 2015, weighing 217. Today, August 30, 2015, I weigh 175. In a few weeks, I will begin a much lower dose. There are some negative side effects, dry mouth and constipation being the most annoying, but I had no jitters or changes in sleep. I'm 47 and am 5'5" with a goal weight of 140."

• Dan...
• Taken for less than 1 month
• August 13, 2019

For Weight Loss (Obesity/Overweight) "I started phentermine on 8/5, starting weight was 226 lb. I started with half a pill the first three days, and I had tons of energy, and it suppressed my appetite so that I was able to make good food decisions instead of stopping at the drive-thru on the way home. On some days, I work out twice a day, and by that, I mean I go to the gym in the early am for fasted cardio and strength training. Then at night, I go for about a 2-mile walk, and in my neighborhood, it's tons of hills. I weighed myself yesterday at the gym, and I was 214.8, so I was pretty excited about that. I incorporated keto with this as well, and it's worked out great so far. I do have a bit of constipation, like someone else had mentioned, but I just drank a cup of warm water with some Epsom salt, and that cleared it right up. I definitely have dry mouth, so I have been drinking tons of water, I have reached my gallon goal every day. So far, so good!"

• MF ...
• July 6, 2016

For Weight Loss (Obesity/Overweight) "Female, 37 yrs, starting wt 263/ending wt 230. Was on phentermine 37.5 for 3 months. Lost 15 lbs first month, 10 second, and 8 the last month. Only dealt with jitteriness, insomnia, dry mouth for the first 2 weeks. I made sure to take the pill early and would take a half pill periodically if side effects were bothersome. By the end of the first month, side effects were gone except for constipation, and I was able to maintain 1400-1600 calorie per day goal. Around week 7 or 8, I noted that my appetite was not very suppressed, so I would eat breakfast and take the pill 30 minutes before lunch. This seemed to boost the appetite suppression for me. I walked 4-5 miles about twice a week. Hoping to continue diet and weight loss after stopping phentermine."

• Jes...
• Taken for 1 to 6 months
• April 29, 2017

For Weight Loss (Obesity/Overweight) "My heaviest weight of the year was 243 lb on 2/26/17. I started taking phentermine on 3/8/17 with a height of 5'7" and 237.4 lbs. On 4/8/17, I weighed 224.6 lbs, and today on 4/28/17, I weighed in at 218.4. Side effects I experienced were dry mouth, stomach aches, constipation, so I drink a detox daily, lightheaded during workouts. But other than that, it has been suppressing my appetite very effectively, and I lost a total of 25 within 2 months."

• Gon...
• October 9, 2015

For Weight Loss (Obesity/Overweight) "Started phentermine 3.5 on Sept 8, 2015. Starting weight was 276. I am 5'1" and 53 years old. I went to the Dr. on October 8, 2015, and weighed in at 262. I did not do any exercise at all. I could not believe it. I'm already starting to feel better. But have a long way to go. It really does not make you hungry. I have to force myself to eat. And it really does give you energy. I did get a little jittery the first 3 days, then it went away. Side effects: very dry mouth, constipation (but I take a stool softener). I have to take it early in the morning, if not, I can't sleep. I would highly recommend you give this a try! Let's see what next month will bring!!"

• RJa...
• Taken for less than 1 month
• October 27, 2019

For Weight Loss (Obesity/Overweight) "41 yrs old, 5'11" and 268 lbs. I have a history of BED (binge eating) and struggled with bulimia from ages 18-30. I still, once a year or so, will binge and purge when under high stress. I started phentermine a week ago, and my results are positive. There is a decrease in appetite, I have no desire to binge eat, I drink a lot more water, I am drawn to smaller and healthier portions, and I find I have more energy. I'd rather go for a walk or organize my closet rather than sit on the couch. My sleep has not been affected, I'm not constipated, and I don't feel the nervousness or increased heart rate others experience. I'm excited to go back to my Dr. after a month and see the results from the scale."

• C_B...
• Taken for 1 to 6 months
• September 10, 2017

For Weight Loss (Obesity/Overweight) "SW: 260, CW: 205, GW: 160. My doctor prescribed phentermine on May 15, 2017. I have been taking half of a 37.5 mg pill in the morning and half in the afternoon. That, coupled with daily exercise and a 1,400 calorie diet, has resulted in a 55 lb weight loss in 4-ish months! There are side effects: nervousness, elevated heart rate, dry mouth, and constipation. However, these can be handled via your healthy lifestyle! Drinking about 4 liters of water a day solves the dry mouth and some of the nervousness (just always carry a water bottle with you). For the constipation, I just take fiber gummies twice a day, and it does the trick! This has been an amazing health journey! If I can do it, you can too! Keep working hard!"

• She...
• June 14, 2015

For Weight Loss (Obesity/Overweight) "I started taking phentermine 15 mg on 6/5/2015 for 3 days, then I was increased to 30 mg. I started out weighing 197 lbs, as of today, 6/14/2015, my weight is 186 lbs. I couldn't believe I had lost 11 lbs in 9 days. The only problems I experienced were dry mouth (drink plenty of water) and insomnia. The insomnia was bad, so I started taking the medicine earlier. I was able to sleep better. I will be on this medicine for 4 months, let's see what happens. I will keep you posted. P.S. I realized that I'm constipated as well."

• ab5...
• Taken for less than 1 month
• March 19, 2016

For Weight Loss (Obesity/Overweight) "I was on this medication about 2 years ago and taken off after 3 days (and 5 lb less) due to irregular heartbeats. Now this, I was told by the blood drive when I went to donate. I was told I couldn't donate that day. Next, I was asked to go to the ER, but decided to go see my regular doctor. The doctor sent me to get an EKG, and all was fine. 2 years later, I asked my doctor again, now another family doctor, to see if I could try it one more time. I've been on this medication for about 2 weeks now, lost 12 lb. I'm shooting for 50 lb off at least, so I have quite a bit to go. I've been monitoring my heart and blood pressure, and I've been okay. Side effects so far are dry mouth, insomnia, and constipation. I'm 36 years old, 5'2" and weighed 219.5 when I started. I'm so excited!!!!"

• 08a...
• Taken for 1 to 6 months
• May 8, 2012

Phentermine for Weight Loss (Obesity/Overweight) "I have been taking it for almost 2 months now, and I lost 9 lbs the first month and had a lot more energy. The second month I haven't lost anything and no energy. I have had constipation, cramps, dry mouth, and insomnia. I have to go to the doctor once a month for a check-up and a new prescription. My goal is to lose 30 lbs, but at this rate, I am not going to make it. I walk 3 miles a day at a brisk walk and do a cardio workout 3 times a week, but can't seem to lose the weight like everyone else who have commented on this board."

• ktn...
• June 18, 2014

For Weight Loss (Obesity/Overweight) "I have been taking Adipex 37.5 mg for about a month now. Eating low carbs and more veggies and protein. I eat around 1,000 calories. 5'3" 144 pounds. So far I've lost about 11 pounds and 10. I walk 2 miles every day. Side effects: dry mouth and constipation (off and on). I worry about the heart valve side effects I've read that other people have had from taking this, but I'm hoping to just have to take it for another 2 months or so. I would like to get down to 125 pounds. I do find that the Adipex helps me during the day, although I still get very hungry at night. But I fight it by drinking more water. Good luck to everyone in their weight loss."

• TyE...
• January 24, 2010

Phentermine for Weight Loss (Obesity/Overweight) "I have been on Adipex since the beginning of December, and my starting weight was 271, and as of Thursday, I weighed in at 246. I am very pleased with my weight loss and very disappointed in myself to have reached a whopping 270. I guess it's better late than never. I do experience some side effects, which include dry mouth and constipation at times. When this happens, I drink even more water and drink a swig of vinegar, it usually helps. I have not incorporated exercise into my plan yet but plan to start next week. I wanted to get the diet down pat first. I do recommend this pill for anyone that has a lot of weight to lose!"