Phentermine and Insomnia: What Users Say (Page 4)

• Bri...
• July 30, 2013

For Weight Loss (Obesity/Overweight) "I started my pill July 12, 2013, and I weighed myself the following Monday, July 15th. I lost 7 lbs, and I kept stepping on and off the scale because I didn't want to believe what I saw. I've currently lost 11 lbs in two weeks. I haven't lost anything this week. I work out 5 times a week and give myself the weekend for my muscles to recover. And I also force-feed myself. Sometimes I get bored and go workout some more after I get done with work. I get dry mouth every single day, and it gets annoying to me, actually. The first day I took my pill, I had a horrible headache. I sleep very well, surprisingly, because it does say one of the side effects is insomnia. I do get dizzy here and there in random spurts. But all in all, I love this pill."

• Anonymous
• Taken for 6 months to 1 year
• April 11, 2017

For Weight Loss (Obesity/Overweight) "I started phentermine in 2015, weighing in at 300 lbs. Within 2 weeks, I was down 13 lbs, but one of the horrible side effects was insomnia. I decided to step up my workout regimen and take only half a pill and ended up losing a total of 45 lbs in less than 5 months. Once losing the weight, I got pregnant and gained it all back, so now I'm taking it again in hopes of getting the weight off a second time. I suggest drinking a LOT of water and working out, that will make the weight come off faster. Although this pill was effective for me, I suggest talking to your doctor first."

• cur...
• Taken for less than 1 month
• July 8, 2013

For Weight Loss (Obesity/Overweight) "I've been on phentermine for 17 days now, and I started at 181 lbs. I weighed in at 168 lbs this morning. I'm still hungry while taking it, but I don't eat huge platefuls like I used to. Sometimes I eat very little, like 5 bites of food all day. I do not have increased energy, actually, I was quite tired the first week. The second week, insomnia. I actually stayed awake for over 24 hours one day last week. I'm 29 and haven't done that since I was a teen. No headaches or nausea. EXTREME dry mouth and diarrhea every other day, also, whenever I stand up, I have to do it slowly. I get dizzy every time and almost fall over. I work out 3 times a week to kickboxing, but that's about it, besides chasing my kids around."

• sto...
• July 2, 2008

For Weight Loss (Obesity/Overweight) "I started out at 200 lbs and within two months went down to 170 lbs. During the 3rd month, I went down to 162 lbs. I feel somewhat stuck at this point, with the weight loss going much slower. I do, however, notice a big appetite change when I take the pill and don't. The insomnia goes away in a week or two. The earlier you take it, the better. It's by far my miracle drug. I love the extra energy to help keep up with the kids and housework. I should have started this years ago."

• Its...
• March 10, 2015

For Weight Loss (Obesity/Overweight) "Firstly, I'm 18, 5'4", and 160 lb when I started. I've been on it for 3 days and have lost 4.8 lbs. I was going to hold off on my review, but I experienced some side effects. This takes insomnia to another level, I would go to sleep at 6-7 am just to wake up 5 hours later. These past 24 hours, I have felt so lightheaded that I stayed in bed thinking I was going to faint out of dizziness, and even while not moving in my bed after waking up, my heart would beat a thousand beats per second. I drink plenty of water too. I also had unexpected diarrhea. Needless to say, the side effects are STRONG. I love the energy boost, though."

• Mrs...
• Taken for less than 1 month
• May 14, 2014

For Weight Loss (Obesity/Overweight) "I took my first dose on May 10th. I dropped 9 lbs immediately within the first 4 days without exercise. My side effects the first 3 days were dry mouth, excessive energy, slight difference in my heart rate, clamminess, and insomnia. Day 5 has been totally different, and I started going to the gym again today. My heart rate was still slightly higher, and I still have problems sleeping, but everything else went away. I dropped 2 more pounds today from mowing the lawn and walking on the treadmill for thirty minutes. I do have to make myself eat, I'm never hungry. I eat 6 times per day, counting in at about 2000 calories a day. I watch my carb and sugar intake but eat lots of dietary fiber and protein. My goal is 150 lbs, I started at 207, and I'm now 196 lbs."

• Anonymous
• Taken for 1 to 6 months
• November 4, 2021

For Weight Loss (Obesity/Overweight) "I started 37 mg on 09/15/21 at 220 pounds. It feels like magic for sure, but I am also well aware that the weight loss, lifestyle changes, and healthy eating are a life change, or I will gain it back. They say there is no such thing as a diet. I drink over 90 ounces of water a day and eat less than 1,300 calories. Currently not exercising. Today is my 7th week, and I am 183 pounds, a total of 37 pounds lost in less than 2 months. I dropped almost 20 pounds in the first two weeks, and the remaining weight loss has been gradual and slow. I do not drink, and I don't eat any carbs. My goal weight is 170. I suggest using an app to track your calorie intake. I haven't had any side effects such as jitters, headache, trouble sleeping, etc. It took a fair 2-3 weeks to adjust to the lower calories, and I felt sluggish initially, but that subsided."

• 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."

• bro...
• Taken for less than 1 month
• August 10, 2014

For Weight Loss (Obesity/Overweight) "Started one week ago, no real change in appetite on 37.5, but did lose 4 lbs. Cutting out as much sugar as possible and continuing exercising 3-4 days a week. Only side effect is insomnia, but started taking around 7:00 am."

• 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!!!!"

• bab...
• November 2, 2008

Phentermine for Weight Loss (Obesity/Overweight) "I have been on Adipex for 2 weeks now. I do have some sleeping problems, but it is getting better. I have had some dizziness also. I was 246 lbs, and at my 2-week weigh-in, I was 235 lbs. I have changed the way that I eat and have had no time for exercise. I love this pill."

• Gle...
• November 25, 2007

For Weight Loss (Obesity/Overweight) "I really enjoyed the first few days of quick weight loss, but by the fourth day, I was having a very difficult time sleeping past 3 am. I tried melatonin at 10 mg, and it didn't work. I fell asleep quickly, but wasn't able to stay asleep past 3."

• Bab...
• Taken for less than 1 month
• July 16, 2017

Phentermine for Weight Loss (Obesity/Overweight) "So, a coworker told me about Adipex, and I was super eager to try anything to lose the extra weight. I can't post anything about results yet, but I can say this: yesterday was my first dose, and I immediately experienced dry mouth, which can be lessened with gum chewing/drinking water. Also, I guess related to dry mouth, I have been told by my boyfriend my breath has a new/different (bad) smell-he's a real charmer. Energy is crazy high! But downside, I haven't slept but 2 hours in...oh, the last 36 hours, and I have had NO DESIRE to eat. Anything. It's really hard to force myself to eat when I have no interest. So, EXTREME suppressant for me. Hoping just initial adjustment because I won't be able to continue if I have severe insomnia/anorexia. Will update:)"

• 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."

• Kat...
• Taken for less than 1 month
• July 23, 2016

For Weight Loss (Obesity/Overweight) "Am on my 8th day of taking phentermine, and I have lost 10 lbs. I had a little trouble getting to sleep the first day, but I'm fine now. It does give you a lot of energy, which was one of my problems, and does keep you feeling full. My weight when starting was 189, and I am now down to 179 for a goal of 160-165. I am finally feeling strong enough to do the stepper at the gym for a longer period of time. I am so impressed with the medication from my Dr."

• Anonymous
• August 21, 2009

Phentermine for Weight Loss (Obesity/Overweight) "This drug works well while you take it, but if you are looking for lasting results in weight loss, this is not the fix. There are side effects such as feeling uneasy, hyper, and an inability to sleep. Also, the longer you take this medication, the less it works. This may be a good way to start your weight loss, but you must be prepared to make lasting changes for the results to last."

• can...
• Taken for 1 to 6 months
• March 7, 2013

For Weight Loss (Obesity/Overweight) "I did not think that a pill could help speed along the process of weight loss so much. I have had 4 children and am now 37. Losing that weight was not easy like it was when I was younger. My last child was born a year ago, and I only lost 10 of the 30 lbs I gained. I am 5'8'' and weighed 222 the day I was prescribed Phentermine (January 11, 2013). As of March 7, I weigh 198. 24 lbs in less than 2 months, I am HAPPPPPPYYYY! My goal is to be 150 lbs. Looks like I will be there soon enough. I drink a lot of water because the only side effect I have is extremely dry mouth. The first night I took it, I did have trouble sleeping, but not since the first night. I go in to my Dr once a month for a check-up, weigh-in, and new prescription. I highly recommend it!"

• Jil...
• August 31, 2019

For Weight Loss (Obesity/Overweight) "I have taken Phentermine 15 mg for almost three months. I have to take next month off and go see my doctor the following month to see how I did on my own. I am a 34-year-old female, 5'1" and my starting weight was 317 lb. I currently weigh 285 lb. The highest weight I've ever been was 325 lb. I experienced dry mouth and a few sleepless nights that were remedied by taking the dose earlier. I have had one extremely terrible anxiety/panic attack. I ended up being fine after a little while, and it only happened once. If you have the opportunity, I would at least give it a shot. So many of us work hard to lose weight, and the numbers end up bouncing up and down the scale. If you try it and it works, then it's worth it."

• Lit...
• November 21, 2013

For Weight Loss (Obesity/Overweight) "I'm 5'2" and 245 lbs. Never suffered from being overweight in my life, but in the past couple of years, my weight has been progressively going up, and I work out and diet is extremely modified, so my doctor decided to try me on this medication. I started it last Friday, 11/15, at 245 lbs, and as of today, I'm 231 lbs. Meaning 14 lbs in 6 days. My appetite has definitely been suppressed, really not much of an appetite at all, but for the most part, the medication is doing what I desired it to do, and besides last night only getting a couple of hours of sleep and up the remaining of the night, I feel good. Will post again after a month or so."

• Anonymous
• Taken for 1 to 6 months
• March 9, 2016

For Weight Loss (Obesity/Overweight) "I started phentermine HCL 37.5 in January 2016, 1/day. I am 5'7" and weighed 200 lbs. I am almost at the end of my 2nd month (3 days left) and now weigh 173 lbs. Weight loss to date is 27 lbs. I am very happy with the results thus far. My doc said he would only allow the use of phentermine for 6 months at the most. I have a check-up every month and have really put my mind to eating healthy foods and no pop or sweets (which were my culprits). I drink water, but most flavored and never had high blood pressure. Only side effect was insomnia for about a week in the beginning. Will start incorporating exercise in month 3 because once you go off, the weight will come back if you haven't taken the time to change your diet and exercise habits."

• Amb...
• August 17, 2016

For Weight Loss (Obesity/Overweight) "I'm an 18-year-old female, 5'6". I started Phentermine after talking to my doctor about how I eat everything in sight, and simply one plate isn't enough for me. I was always tired, lazy, unmotivated. The first day I took it, I didn't sleep at night, just like all the reviews I read online said I wouldn't. I didn't mind though because, when it was time to get up for the day, I wasn't tired at ALL, which was crazy. Before Phentermine, I was 225 lbs. That's the heaviest I've ever been. Now I'm 190 and dropping. As long as you take it about 30-45 minutes before you eat breakfast in the morning and drink water, and attempt to work out, you'll strive on this medicine. I could lose a lot more if I wanted to. It gives you the energy and motivation you need!!"

• Zpr...
• Taken for 1 to 6 months
• August 10, 2019

For Weight Loss (Obesity/Overweight) "Taking Phentermine has helped a great deal so far. I am 5'3", and I was my heaviest ever at 206 lb. For all my life until the past 10 years or so, I had a healthy weight. Ah, aging... I started taking the Phentermine at the end of May. I did remember that the doctor said there could be some trouble sleeping, so I was prepared for that and took an over-the-counter sleep aid (I was told that was okay). I don't feel jittery or have big boosts of energy (except on days when I exercise first thing in the morning). I'm trying to exercise twice a week. For me, the appetite suppressant helps me be more conscientious about what I eat. And honestly, the dry mouth makes it easier to drink more water. I've lost just over 25 pounds so far. I think I am starting to have a little more energy, but I think that's more because of the weight loss and not having as much weight on my joints, etc."

• lil...
• Taken for less than 1 month
• January 26, 2022

For Weight Loss (Obesity/Overweight) "Not worth it! I was literally one pound overweight and wanted to lose 10 lbs. For two to three weeks, I was a little energized and had a hard time falling asleep but really had no scary side effects at all. Then, at about three and a half weeks after beginning phentermine, I was awakened in the middle of the night sweating and with my heart racing out of control. My heart was beating so fast I couldn't get a number. It ended up being 204 bpm, which is crazy dangerous. I had to be given a heart medication to slow it down, and even then, it stayed at about 110 for three or four more hours. I was released to go home, and I felt just tired and drained the following day. I went to bed early and got up feeling normal. I obviously stopped using the phentermine, and my heart is at its normal 60-65 bpm. Doctors said I was lucky I didn't have a more dangerous arrhythmia or just collapse. Beware of this medication!"

• Jen...
• August 25, 2015

Phentermine for Weight Loss (Obesity/Overweight) "Not obese, but med change and back surgery resulted in an extra 20 lbs not normal for me. Doc required tracking of diet and exercise before RX was given and would only write for brand name as generic ramped up potential side effects. Continued regular monitoring and input on necessary long-term diet changes. I lost 30 lbs and have been off for a week. I eat foods I love and that are healthy, so no sacrifice there. The energy it provided allowed me to create an AM yoga routine each day. Side effects of dry mouth and less sleep were there but minimal. Pretty tired in the beginning of coming off them, but adjusting now. The goals we set together were met, and the purpose of a lifestyle change/improvement were accomplished. This is a solution to changing your lifestyle."