Phentermine and Headaches: What Users Say (Page 3)

• Aim...
• Taken for 1 to 6 months
• May 18, 2015

For Weight Loss (Obesity/Overweight) "I started taking phentermine 30 mg on 3/18/15. In the first month of using the medication, I dropped 13 lbs (229 lbs to 216 lbs). The initial side effects I experienced included dry mouth, insomnia, and mild headaches. After the first couple of weeks, the only remaining side effect I experienced was dry mouth. This is actually a pretty beneficial side effect as it helps me drink more water. The next month, my doctor bumped me to the 37.5 mg medication. During that month, I lost 12 more pounds (216 lbs to 204 lbs). So overall, I've lost 25 lbs in two months. I'm elated! My first goal is to get to ONEderland (i.e., finally be under 200 lbs). It's nice to actually see some progress. I have hypothyroidism, so weight loss has always been difficult. This helps!"

• Buc...
• Taken for less than 1 month
• January 20, 2019

For Weight Loss (Obesity/Overweight) "I'm a 36-year-old female, 5'2", hypothyroid, autoimmune disease, and PCOS, mommy of 1. Starting weight 178 lb. I started Adipex on January 2nd. For the first week, I took half of a pill each day. Since then, I've been taking one 37.5 pill each day. The first 2 days, I had a bad headache. I haven't had any caffeine and have had enough energy to get through the day. I'm drinking a ton of water. I've been drinking only water and eating 1200 calories a day. In 2.5 weeks, I've lost 12 1/2 lbs. I'll update again next month. Good luck to everyone!"

• OnM...
• March 1, 2021

For Weight Loss (Obesity/Overweight) "I started taking phentermine 10 days ago, and I have lost 8 lbs. I started at 220 and I’m now at 212!!! I do exercise every other day, but nothing too intense—although I do make it a point to sweat. I have definitely changed my diet, and I try to stay under 1,000-1,500 calories. I cut out sugar and reduced my carb intake. I don’t get as hungry as I used to, and I have so much energy after taking it. For me, this pill is just a way to help me ease into better habits. It’s definitely not a magic weight loss medication—you have to put in the work! The first 2 days, I had a constant minor headache, but it went away soon. I am unbelievably thirsty every day, which is fine because it reminds me to drink lots of water! I can’t wait to update again in a few weeks!"

• Sne...
• March 15, 2016

For Weight Loss (Obesity/Overweight) "I've been on phentermine 37.5 mg once daily for 9 weeks. The first week was rough: lots of headaches, irritability, with an easily evoked 'fight or flight' response. Although I will say that when I was feeling irritable and unreasonably mad, I was well aware of my behavior and knew it was a side effect of the med. I also have underlying mild anxiety/depression, which has gotten considerably more challenging on this med. I do take Zoloft 100 mg daily. All in all, between the weight loss and endorphins from exercising (30 min daily), it made it a lot easier to handle. For all of my time on this med, sleeping has been challenging. I have to wait a good 17-18 hours after taking the med before I can sleep. I tried taking half a pill, and it was totally ineffective. I have always been prone to dizzy spells when standing up quickly or squatting and standing: this med intensified that effect big time. But after 4-5 weeks, that side effect was much less. Dry mouth is also still very common. I don't mind as it encourages me to drink more water! All said and done, it's been 9 weeks, and I've gone down 37 lbs with little effort, and I still have zero appetite. I eat because I am supposed to, not because I am hungry. The effectiveness has only decreased around 15-16 hours after taking the pill. I am 31, starting weight 252. I am a huge fan of this med. The side effects are manageable and well worth the 37 lbs loss. Diet-wise, I'm doing low carb/low fat/low calorie. I go out to dinner 1-3 times a week and drink minimal to no alcohol. I did not have any spikes in blood pressure either. The initial stimulant effect went away quickly, I just feel like my normal self when I take it. The most important part of this med to me is that it takes away ALL my cravings. Yes, it destroys my appetite, but being hungry was never the reason I overindulged in the past. This med makes food indifferent, so I use it as I should: as fuel, not for pleasure. Also, you will get a prescription for 3 months as it is intended to be a short-term medication due to the side effects on your heart (read packet insert for details). If you have high blood pressure, you cannot take this. Feel free to ask any questions! I am in no way affiliated or endorsed by this med and have posted this review of my own accord."

• Diz...
• Taken for less than 1 month
• July 29, 2013

For Weight Loss (Obesity/Overweight) "I started this medication 12 days ago. The first week, I lost 5 pounds, the next weigh-in is in 2 days. The first day, I had a mild headache, but I now avoid that by avoiding caffeine. I do have dry mouth a lot, so I keep water nearby at all times. I haven't had any kind of appetite, so I have to force myself to eat. I highly recommend this medication!"

• 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."

• mis...
• June 18, 2015

For Weight Loss (Obesity/Overweight) "Started phentermine a week ago. The first day I literally felt crazy. I was hot, sweaty, and extremely active, water was my best friend! Now I just feel energized, not crazy, lol. I don't have an appetite at all, and if I go without water, I get headaches (shocker). I take it every day with the exception of Sundays. I know I won't drink a lot of water, but I still maintain my eating habits. I've been on it for a week now, and I started at 189, and today I weighed 181, so 8 lbs today. I think it's great, best decision I've made so far. Gonna give another update in a month."

• Mar...
• Taken for less than 1 month
• January 9, 2020

For Weight Loss (Obesity/Overweight) "I am taking half 37.5 mg after I ate a little something for breakfast. I was afraid to get sick from an empty stomach. But I started to feel a little hungry even after I took the pill. So I think I will try on an empty stomach or take it two hours after I eat. I don't want to take the full pill just yet. I read mixed reviews and don't want to get all the bad side effects. I have gotten a slight headache, but that's all. I was able to sleep since I took the pill so early in the morning. I'll report again in a few days. :)"

• 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."

• hea...
• December 5, 2015

For Weight Loss (Obesity/Overweight) "I have been on 37.5 mg for 14 days and have lost 11 pounds. Only problem I have at all is dry mouth. Water doesn't help. Gum does, but I get headaches if I chew gum too long. Overall, though, it's been awesome!"

• Mea...
• Taken for less than 1 month
• October 29, 2018

For Weight Loss (Obesity/Overweight) "I started this drug 10-24-18, and I have lost 15 lb. I had a headache once, have dry mouth daily, feel high sometimes, feel relaxed sometimes, feel hyper sometimes, feel clumsy sometimes, and urinate constantly. I am losing over 3 lb daily without exercise. I do force myself to eat."

• Apr...
• Taken for less than 1 month
• July 31, 2019

For Weight Loss (Obesity/Overweight) "Been on this drug just about a week or so and have already lost 6 lbs, which is amazing! The con is that I am an anxious mess. My head hurts, and my mood has shifted. Wondering if this will go away or not. I'm not sure I can take feeling like this long term."

• tri...
• February 8, 2016

For Weight Loss (Obesity/Overweight) "I've been on this medicine since July of 2015. I started off weighing 462 and now I'm at 343 as of January 2016. My only side effects are a slight headache and dry mouth. It requires you to drink plenty of water, which is good for your diet. But overall, the best I've ever come across. I never was a big diet fan, so I really never tried too much, but I'm glad I have success on my first try."

• RTa...
• Taken for less than 1 month
• June 19, 2019

For Weight Loss (Obesity/Overweight) "Started phentermine almost a month ago and had a weight loss of 8 lbs. I am a 54-year-old woman, tail end of menopause, and had weight issues during this time. Side effects were: dry mouth, one day had a headache, heart races a bit at night, but none of these things were overwhelming. I cut back to half a pill every other day to see what made me feel best, and I stuck to the half. I have more energy and am very happy!"

• Cry...
• June 22, 2019

Phentermine for Weight Loss (Obesity/Overweight) "Got these pills and took a pill after breakfast, and my heart felt like it was going to pop out of my chest. Increased heart rate, blood pressure. Also gave me a terrible headache and nausea. Felt like I was going to die. Had to go to the hospital, and the doctor told me I was getting an anxiety attack as well. Would not recommend it. Terrible experience."

• lil...
• Taken for less than 1 month
• November 19, 2015

Phentermine for Weight Loss (Obesity/Overweight) "I started this medicine for weight loss. I have type 2 DM with PCOS. I started Adipex on 10/30/15. My weight was 260 lbs and I was very unhappy. My first week on this pill, I lost 10 lbs and the next week I weighed in at 245 lbs, 15 lbs in two weeks! It's amazing results. I had major side effects ranging from headaches, upset stomach, diarrhea, blankness, and heart racing. I stuck with it and the only thing I have a problem with is the diarrhea and upset stomach. I weigh myself tomorrow for the third week. The energy I have now is unbelievable. I'm really happy I chose this."

• Gia...
• Taken for 2 to 5 years
• October 4, 2019

For Weight Loss (Obesity/Overweight) "Phentermine was the only way I was able to lose 75 lbs. The medication completely killed my appetite, allowing me to pick my foods based on nutrition rather than because they 'taste good' or because I'm bored. I experienced the following side effects, but I would rather suffer with these than the inability to lose weight: Headaches (severe sometimes), Dry Mouth, Dehydration (I have to constantly remind myself to drink water all day), Mania (for about an hour after I take the pill), Insomnia (if taken past 3 pm)."

• jac...
• Taken for less than 1 month
• October 6, 2013

For Weight Loss (Obesity/Overweight) "I started taking it on October 1st, it is now the 6th, and I've already lost ten lbs. I don't have that much more energy, but I don't have cravings or really get hungry, but I make sure to eat three small meals a day. I don't drink anything except water. I am really active at work. I make sure to eat breakfast or I'll get a headache for the rest of the day. I stay away from bread and pasta. This pill is honestly a miracle worker, but I feel that for me to keep all the weight off, I have to eat. I can't starve myself."

• Cmo...
• Taken for less than 1 month
• February 24, 2019

For Weight Loss (Obesity/Overweight) "I have only taken this pill for 11 days now, and in 11 days, I am already down 6 lbs. It has greatly reduced my appetite, which I have never had success with in any other weight loss pill. I do have a slight headache, but I am not sure if it’s due to this pill or the other one I am weaning off of. I am experiencing some insomnia, but over the last two nights, it has been better, so I am hopeful that will decrease as time goes on. I have way more energy. No dry mouth. No nausea. Due to being gone 11-12 hours per day for work, I am not working out. I am paying attention to portions, but otherwise, I have not changed my diet much, but I am still seeing results. Very satisfied so far."

• Tsi...
• June 22, 2017

Phentermine for Weight Loss (Obesity/Overweight) "I had a great experience using this, lost 20 lbs in the 3 months on it. Another positive, my face cleared up so, so nice!! My skin looked amazing! The first 2 weeks on it, I had terrible headaches, but they did go away eventually. The only thing I really noticed is that it triggered my anxiety a little bit and caused me to bite my nails a lot!! But other than that, I had a wonderful experience with it."

• slo...
• Taken for 6 months to 1 year
• July 7, 2015

For Weight Loss (Obesity/Overweight) "I started taking phentermine, and it did give me headaches and shaking, but I found if I break the pill in half, I don't have the bad side effects. I also have lost about 17 lbs in the last 30 days. So it is working, went from 201 to 184. I wish everyone the best of luck. BTW, I did not change my diet or exercise plan. My doctor will only put me on this for 21 days because after that time it stops working. So I take a half a pill every day every other month. I have lost about 50 lbs altogether on this in the last 6 months doing it this way."

• Anonymous
• Taken for less than 1 month
• February 19, 2016

For Weight Loss (Obesity/Overweight) "I'm 50 yrs. old and just started phentermine 37.5 mg on 2-16-16. It's just been 4 days, and I've already lost 14 lbs. I'm 5'8" and started at 320 lbs. I want to get down to 145, so I have a long way to go, but so far, wow! The only side effects so far are dizziness, jitters, constipation, and slight headaches. All of that I can deal with because this pill is working so far. Will update in a month or so."

• Hop...
• June 24, 2010

Phentermine for Weight Loss (Obesity/Overweight) "I started Adipex 37.5 mg on 06/14/2010 after reading all the reviews on this site. I also have changed my diet considerably, and I exercise (walking, Zumba, and light weights). I wasn't going to weigh myself, but I ended up going to a doctor's appointment on 6/18/10 for a check-up, and I made a mistake and peeked at the scale, and I had lost 9 lbs in one week. I do experience dry mouth and occasional headaches, but nothing serious. I started taking this medicine because I needed a boost on top of the dieting and exercising. I do not take the medicine on the weekends, and I always cut my pill in 1/2 and take 1/2 when I wake up at 6 a.m. and the other 1/2 at 2 p.m. after I have eaten lunch at work. Starting weight 251 lbs, current 243 lbs (as of 6/18). I will update my progress!"

• Anonymous
• May 2, 2008

For Weight Loss (Obesity/Overweight) "I've been using Adipex for a week now, and it really works. Normally, I would eat snacks on top of snacks, but with it, you really have to make yourself eat. The first two days, I had a headache, and I cannot sleep past 2:30 a.m. I'm walking and doing a lot around my home."

• Amb...
• Taken for less than 1 month
• March 2, 2017

Phentermine for Weight Loss (Obesity/Overweight) "I started this pill on 2/24/17. So far, I have lost about a pound a day. I only eat 1,000 calories a day and exercise whenever I get up early enough. I have experienced some terrible side effects, which include dry mouth, insomnia, tingling in my left leg, jitters, and headaches. The side effects are terrible, but I've looked up ways to deal with them: dry mouth, I drink a bunch of water, insomnia, I take ZzzQuil, jitters, drink more water and take deep breaths, headaches, I take pain pills. Does anyone know how long before my body gets used to this medication and the side effects go away?"