Phentermine and Headaches: What Users Say

• She...
• February 11, 2020

Phentermine for Weight Loss (Obesity/Overweight) "Started Adipex 11 days ago, weighed myself today and have lost 11 pounds. Started at 181 and am now 170. Going through menopause and have spent the last two years in the gym unable to lose a pound. Once menopause hit, I gained so much that my BMI for the first time put me in an overweight category. I asked my Dr. if there was something I could take that helped the work that I already do actually work. Goal weight is only 155, I'm 5 feet 10 inches tall. The first week she had me take half a pill a day, beginning of second week a full pill. The first day I had a bad headache. I have dry mouth from taking it, but not so bad it's unbearable. I drink a ton of water. It took away my desire to drink coffee and it never gave me the bad coffee withdrawal headaches. I'm eating anywhere from 600-1200 calories. Change your eating habits while on Adipex. Take those few months to get your body adjusted to healthy food choices so that it doesn't crave the bad stuff once you're done taking the pills."

• Sam...
• Taken for 1 to 6 months
• May 18, 2024

For Weight Loss (Obesity/Overweight) "I am a 57-year-old nurse and my weight had increased to 224 pounds after years of menopause and management of chronic illnesses. I started taking phentermine on 12/1/23 as a low dose. I was amazed at the energy it provided me. I also incorporate exercise as it gives me the energy to exercise, a healthy diet with calorie control to 1000-1200 calories per day and daily weights. I also use MyFitnessPal and Fitbit to help log and manage my progress. Now I am almost 6 months into my journey. I have lost 45 pounds, my cholesterol and triglycerides are now normal, my blood pressure is now in low normal and beginning to wean off BP meds. I have psoriatic and rheumatoid arthritis and my pain has gone from 5-6 to 0-1 (on most days). I have experienced dry mouth, headaches, and constipation, but drinking more water, eating more fruits and vegetables, and exercise have helped all of these. Stay the course, the results are well worth it. I love the healthier and thinner me!! This medication is a lifesaver!!"

• Cha...
• Taken for less than 1 month
• February 2, 2021

For Weight Loss (Obesity/Overweight) "I've taken Phentermine-Adipex in the past and lost 50 pounds in 3 months. However, I did occasionally experience side effects such as headaches and mood swings in the evenings. But it does affect people differently. I would definitely recommend others to try it. It’s not a magic pill but, incorporated with a healthy diet & exercise, it will help get off stubborn pounds quickly. Fast forward: After 7 years of keeping the weight off, I gained all the weight back due to depression & just being lazy during Covid. I’m back taking Phentermine 37mg. I must say my body is not responding to the medication like before. The strength of phentermine now is weaker than it used to be. I will update in 30 days."

• Bug...
• June 3, 2020

For Weight Loss (Obesity/Overweight) "I just started taking 37.5 mg of Phentermine yesterday for weight loss. After struggling with diets, exercise and medication weight gain, my doctor and I decided this was the best way to help me shed the 10-20 pounds I’ve been wanting to lose for at least 6 months. First and foremost, take this pill as early as you can because it did affect my sleep. On the first day, I only experienced light jitteriness, a little chest pain, and a headache. My appetite was lessened. Today (the second day) I am already down a pound, I’m not very hungry at all, and I only have mild jitters and a headache. Nothing that isn’t tolerable though. I plan on taking this for a total of 3 months only, so I’m hoping I’ll drop the excess weight I’ve gained and develop healthier practices while I’m on it. I will say that the increased energy is nice for someone who wasn’t sleeping well and then wasn’t motivated to move around."

• Fra...
• Taken for 1 to 2 years
• November 25, 2014

Phentermine for Weight Loss (Obesity/Overweight) "Adipex-P worked for me. I lost the weight and I'm keeping it off. I haven't become resistant to the medicine at all. The generic brand is different - I had a headache and dry mouth. The name brand - no problems. I'm continuing to take it under the supervision of my doctor. I have no side effects, I feel good and I'm at a good weight. I exercise and stay on a low carb/high protein diet. This medicine rescued me from the weight loss merry-go-round."

• Chu...
• Taken for less than 1 month
• February 21, 2020

For Weight Loss (Obesity/Overweight) "My body demographics: age 28, 5’1”, Starting weight as of 2/18 was 180lbs. I breastfed my child til 10mo then instantly gained 30lbs after I stopped (warning to all breastfeeding moms!). I would exercise, went on every extreme diet you could think of for weeks and sometimes months at a time, and usually could only manage to shake about 2lbs. After just three doses of this medicine, I’m already down 6lbs. Yes, there are side effects, but it’s worth it to me. I definitely have the dry mouth and headaches, but it makes me drink more water. I was incredibly addicted to Mt. Dew. Since I’ve started, all I want is water. I hardly have an appetite. I eat less than half of what I had been. It’s a miracle in pill form!"

• Lad...
• July 13, 2021

For Weight Loss (Obesity/Overweight) "Taking this medication for 4 months now, I was 203 pounds in March and down to 169 pounds now (July), feeling good. I'm 33 years old, I've always struggled with my weight and binge eating disorder, but it got worse during the pandemic. I was binge eating every day, and I couldn't control it - I was 203 pounds, the heaviest I've ever gotten. I was uncomfortable in my own skin, so I decided to look for help because I couldn't do it on my own, even though I tried. The doctor prescribed phentermine. It took away most of my appetite and cravings - I felt hungry, but I would eat just the necessary. I still have binge eating episodes when I have PMS, but not as bad as before. Not many side effects for me, just a VERY dry mouth, it made me drink more water, which is good. I experienced insomnia sometimes, and a little headache and constipation in the first week. I recommend it to people who want to get healthier but can't do it alone, just don't forget that you have to be strong to keep the results. It's not a miracle pill."

• Cor...
• July 16, 2019

Phentermine for Weight Loss (Obesity/Overweight) "I am 44 years old and I was 182 pounds 3 months ago. I started diet by myself and I was able to lose 10 pounds. I went down to 172. Then I got stuck. I finally went to my doctor and he prescribed me the Adipex pill. I started last Thursday at 172.5 pounds, exactly 6 days later I am down to 166.6, and it's not even a week yet. I will keep you posted. As for side effects, only the first 2 days I had a light headache, but I am okay now, I am very thirsty. I started walking every day for at least 35 minutes. I still have a problem with my foot, so I go very slowly, but I am trying. So far, I love it. I am not hungry, and I am very careful about what I eat. I eat vegetables, fruits, lots of water, and fish. Sometimes a small piece of grilled chicken. I forget to eat, but I am trying to eat in between veggies or fruits because I don't want to gain all the pounds back once I stop the medication. I will take it for 3 months, so I still have a long way to go. I need to go down to 130, 36.6 pounds to lose."

• Mad...
• August 15, 2016

Phentermine for Weight Loss (Obesity/Overweight) "I was on Adipex in 2010. I started out at 272 lbs. I was amazed at how much weight I lost every week. I had to buy new pants, jeans, etc. every week. I averaged 8-12 lbs lost per week. I lost 126 lbs in just under 5 months. I was very active, exercised every day, and didn't have the craving for food. I did find that not eating led to headaches and mood changes. You have to eat!"

• ked...
• Taken for 1 to 6 months
• March 25, 2015

Phentermine for Weight Loss (Obesity/Overweight) "This pill works! I do advise that you eat breakfast, wait 30 mins, and drink water throughout the day. If you don't get hungry, eat something wholesome. My experience with headache and mood swings was due to me not feeling hungry, yet my body still needed fuel. Listen to your body! I'm at a weight that I'm happy with. I do exercise, it's my therapy. One seventy-three from 205! Also, it helps with my blood pressure. Eating is so much easier. I can think about what I need to prepare versus just grabbing the first snack, not so good choice that would satisfy me. Know your body, breathe, don't overthink, be happy. This is coming from me! It helped along with small positive changes. Peace!"

• Ash...
• Taken for less than 1 month
• April 28, 2019

For Weight Loss (Obesity/Overweight) "Started the pill on a Wednesday and by Saturday I was down 10 lbs!!! From 224-214!!! I’ve read all the reviews and side effects but my experience has been good. Extreme dry mouth and once had a headache but I’ve been okay. Hoping to get down to about 170 lb. Good luck everyone!!!"

• Nik...
• January 31, 2015

For Weight Loss (Obesity/Overweight) "I started the medication on Jan 9th, 2015, at 247 pounds. Today is Jan 31st, and I'm down 10 lbs. I'm happy with the weight loss, but if my doctor would up me to a whole pill, I'd probably really lose weight. I'll see him on the 9th of February, and I'm sure he'll increase my dosage. So far, I haven't suffered any of the side effects previously mentioned. Also, per my doctor, if you suffer from headaches, it means you're not eating enough."

• nik...
• Taken for less than 1 month
• July 25, 2013

Phentermine for Weight Loss (Obesity/Overweight) "Started taking the pills on Saturday. By Tuesday, I was down four lbs. My first three days, I felt lightheaded and had headaches at night. I love this medicine, I have no desire to eat. Now I can finally get rid of the carbs, and by my third month, I hope I never go back to them."

• JJa...
• Taken for less than 1 month
• February 26, 2020

For Weight Loss (Obesity/Overweight) "Started the meds, 15 mg caps today, weighing 285 lb. Will post in a week or two to let you know if there has been any progress. I can say I am not hungry, did get a slight headache, which I took IB for. I do feel high as a kite though. I wouldn't say I have tons of energy, but definitely feel high. GW220# female, 38 yrs, 5 ft 4 in."

• EEa...
• Taken for less than 1 month
• November 17, 2016

Phentermine for Weight Loss (Obesity/Overweight) "I started Adipex on 11/14/16. My starting weight was 310, weight today is 301. It's day 4, I weighed in yesterday and lost 9 lbs. I don't seem to have more energy, but it does work. The only side effects I have are dry mouth and a slight headache. I have absolutely no appetite and have to force myself to eat, but I also have no desire to drink sodas or any junk food, which is a great thing. I love this pill and would recommend it."

• Mik...
• Taken for 1 to 6 months
• April 3, 2015

For Weight Loss (Obesity/Overweight) "It works! The best 'diet pill' I have ever taken. I lost 40 lbs in 3 months. Exercising is the key. You have to work out to see faster results. Side effects were headaches, only because I had no appetite. Constipation was an issue, but I took care of that by juicing veggies."

• MKm...
• Taken for 1 to 6 months
• May 17, 2016

Phentermine for Weight Loss (Obesity/Overweight) "Been on generic Adipex for 1 month. Start weight 183. Current weight 171. Drink lots of water on this. Dehydration can cause headaches (I get migraines already, so this did not increase due to the medication). The first day I was nauseous. The first week was extreme dry mouth and complete lack of appetite. I had to remind myself to eat during the first week. At some point during the second week, I was feeling a bit hungry but not the constant hunger I experienced before. As of the end of the first month, the only persisting side effect is the dry mouth. I'm also not sleeping very well! But I just take Tylenol PM for that. Overall, I feel good. I'm losing weight. I'm less hungry, so I'm selecting better food choices. (Chocoholic lol) and no serious issues."

• Aw4...
• May 5, 2016

Phentermine for Weight Loss (Obesity/Overweight) "I am 5'3, and when I started Adipex in late January, I was 202 lbs. Just now starting to slowly stop taking them by skipping days. I have had a total weight loss of 38 lbs in 3 months. The first month was the quickest results. I've eaten 1200 calories daily, drank water, and worked out extremely for 4-5 times a week. Experience headaches due to lack of water sometimes. I was dizzy when standing up too fast, had many sleepless nights from too much energy, even though my body was so tired. But I feel reborn. I feel so happy and confident. Of course, my body image isn't what I expected, but my journey has not ended yet. Adipex is a tool used to help change your lifestyle. I can't wait to say I changed my lifestyle and no longer need a pill, but I am thankful for it."

• mar...
• Taken for less than 1 month
• October 9, 2014

For Weight Loss (Obesity/Overweight) "Started taking phentermine on 9-26-14. I weighed 196 lbs. I had my first weigh-in today, 10-9-14, and I now weigh 187 lbs. I lost 9 lbs in 2 weeks. The side effects I'm having are dry mouth, headaches, and stomach pains, but that could be my loss of appetite throughout the day and not eating. I'm also experiencing insomnia. I was taking the pill at 10 AM. I am now switching to half a pill and taking it at 8 AM. I will see if it works better for me."

• Jen...
• April 22, 2015

Phentermine for Weight Loss (Obesity/Overweight) "I started Adipex 4/16 exactly 6 days ago. I started at 181 lbs, I am now down to 176.4 lbs. I have had occasional headaches and dry mouth, but as long as I keep losing this weight I need to lose, I can deal with it. My goal is to lose all my pregnancy weight I put on with my second baby. 28 more pounds to go!!"

• Bri...
• Taken for less than 1 month
• January 16, 2020

Phentermine for Weight Loss (Obesity/Overweight) "I had this medication Adipex-P last year and had horrible side effects. It was like a sinus headache and muscle spasms. I lost 10 pounds and gained it all back when I got off. So last week, I decided to give it another go. I was doing good, no side effects. Lost 8 pounds, now the side effects are coming. This time it’s different. I had one muscle spasm and since then my legs have been very heavy and felt very weird and sore. I don’t know what to think about this pill. As far as weight loss, it’s great, but side effects, yeah, I’m not feeling good about them. Actually, kind of scared. But if you want to lose weight, go for it. My friend has been on it and has had a totally different experience from me. No side effects whatsoever."

• Anonymous
• Taken for 1 to 6 months
• October 26, 2012

Phentermine for Weight Loss (Obesity/Overweight) "Adipex is fantastic. Although I haven't really felt 'energized', I'm totally eating a lot less. I don't have that hungry feeling, and it really helps me to make better choices, as I'm not always famished. In 6 weeks, I've lost over 20 lbs, which is something I never thought was possible. I'm really not even worried about coming off of it, as I think I've made a total lifestyle change. I'm never going back to being that fat person again! I've had virtually no side effects, except I do get headaches. Honestly, I don't think it's the pill though, but the fact that I'm not eating a whole lot and my blood sugar is probably lower than normal. I highly recommend this medicine."

• Mal...
• Taken for 1 to 6 months
• July 6, 2017

Phentermine for Weight Loss (Obesity/Overweight) "I have taken Adipex for one month and 4 days, 22 pounds down. Starting weight 240, now at 218. I plan to stay on the pill until I reach 180 lbs. I am a very active person and eat great. First couple days I did have headaches, which only lasted 2-3 days, now I have had none. The boost of energy is nice. I do experience some dry mouth, thankfully, I LOVE water! I'll post in another month, hopefully, I will be under 200 pounds!"

• Red...
• September 13, 2015

Phentermine for Weight Loss (Obesity/Overweight) "At a starting weight with a new doctor, 440 lbs. I tried Adipex. I only took it a week before I stopped due to headaches, heart racing just getting up to go to the bathroom. But with sheer willpower alone, in one year I lost 120 lbs. After losing an average of 10 lbs a month, my weight leveled out and I couldn't get but 5 lbs a month. So we decided to try Adipex again. I started on Aug 15 at 316, now, Sept. 13 - 295 lbs. This time, no side effects, I'm exercising more and feeling great. Hoping for the best."

• Lau...
• Taken for 1 to 6 months
• February 1, 2020

For Weight Loss (Obesity/Overweight) "I started on phentermine at the beginning of December 2019. I was worried about having bad side effects due to not handling caffeine very well. (Makes me feel sick). I took half a pill for the first 8 days, and afterward would take half a pill at 7:30 a.m. before work, and the other half around 9:30 a.m. I lost 15 pounds in the first month. This second month has slowed down, but I am down 7 pounds the 2nd month. The second month I was given capsules and not the pill, so I haven’t been able to split the dose like before. The side effects I have had are dry mouth, occasional headaches, and occasional constipation. I would say that overall the side effects aren’t too bad, though. I plan on starting to exercise a few days a week next month to see if it will help me lose more."