Phentermine side effects

I've been taking phentermine for about 2 weeks now and I also take levoxyl .175. It seems like about 2 hours after I take the Phen, I feel overwhelming exhausted. It feels like I can't do anything during this period of time, it lasts for about 2 hours. Sometimes it I get 2 or 3 of these episodes in a day. What is going on? I can't find any info.

I've been on Phentermine on and off for about 12 years. Phentermine does work really well but as with any change in eating habits or diet, you must continue to eat well when you are off of it. Because Phentermine is classified as an Amphetamine, you will gain the weight back when you get off of it and possibly gain more. Just like a drug addict who is taking Meth-Amphetamines is usually super skinny, but when they get off of the drug, they gain alot of weight back. It works great in the beginning but Phentermine is a short term diet pill and after about 3 months of taking, you should get off it for a while because your body starts to become immune to it. You may want to take more of it and the more you take, the more dangerous it could become. I read on here where someone had high blood pressure because of it. Phentermine can definitely do that. As far as the girl with the menstrual cycle problems, I have never heard of Phentermine doing that, so you might want to check to make sure something else isn't wrong. Phentermine is the generic for Adipex. Adipex actually works ALOT better but your doctor actually has to write you the prescription for Adipex. Most doctors write Phentermine on the prescription and you cannot request Adipex. Your doctor actually has to prescribe it for you. I used to get my prescription filled out Walgreens or CVS and I was paying $54 a month for it. Then I heard Costco or Sam's Club sells it "at cost". Now I only pay $13.88 a month for it. I think I mostly just take Phentermine now to stay awake when I don't get enough sleep. Also, I had read on here where someone was breaking the 37.5 mg tablets in half and just taking a half a pill. I read in a drug insert on Phentermine that you should not break or crush them because it decreases the pill's effect significantly.

Phentermine (the generic for Adipex) tends to give me some strange side effects. I get random spots on my arms or head where it is fuzzy feeling and I get a patch of goose bumps. I do not have as much of cotton-mouth as I do with Adipex. Both phentermine and adipex have been wonderful! With not only the pill, but proper diet and exercise, I have lost as much as even 11 lbs. in a week. I love the extra boost!

bad news. I can barely walk my legs are so weak.

my period was never regular ,but for some weird reason after about 2 weeks after starting phentermine, i noticed i was spoting more and more, i asked my dr. what was going on he said it was a common side effect, but this month it was different, first it was some spotting but now it like FULL ON BLEEDING for over 2 WEEKS. I've lost over 35lbs. in the 2 months i've been taken the pills but i don't know what i should do about the bleeding.

I have been taking Phentermine for about 1 month and have lost 10 lbs. I weighed 136 before i started taking it. I am only going to take it unitl i get back to my prebaby size(which is 110). Im also only taking half of the 37.5. But i have a question. Is it ok to take this while taking birth control? And when i stop taking it, will i gain the weight back?

I have been taking Phentermine under the direction of my dr. now for about 2 years (on for 6 months off for 6 months). I started at 250 pounds and I'm now at 180. My goal is 135-140.

I can not stress enough how very important it is to DRINK WATER while taking this medication. You CAN DIE if you don't.

I ended up in the hospital for severe dehydration once, and that will never happen again. My hands locked up, my body started shaking, had a fever of 104, etc,.it's not fun.

Side Effects I have experienced:

Rapid Heartbeat
Panic Attacks / Anxiety
Nervousness
Easily Irritated
Sick at my stomach
Constipation
Constantly Thirsty
Body/Hands Shake if you don't drink enough water
The constant need to stretch every part of my body (this makes you want to get up and run around)
Odd cravings for vegetables and dairy products
Insomnia
Abdominal Cramps (most likely caused by constipation)
Diarrhea (usually only if I drink lots of orange juice or Starbucks)
Feel like you are on speed (because you are)- you will clean your whole house if you take this stuff.

I have been taking phenterminesince July and I have lost 44 lbs.This drug is a real life saver for me.I haven't felt this good in years.

I have experienced high blood pressure after taking phenermine 37.5 for 2 months. I lost approx. 12 lbs in 45 days, however, I had to stop the plan because of my pressure. I have not taken the pill for the last 7 mths and now
i have gained approx. 20 lbs including the 12 lbs i lost. i am
in the process of resuming my diet plan. phentermine works
for me. I just cannot deal with the high blood pressure.

I HAVE LOST 33PNDS SINCE I STARTED IN JAN 2006.......ONE THING THAT DID BOTHER ME AT THE BEGINING WAS THE HEART BEAT WAS ALOT FASTER THEN USUALLY AND I WAS VERY NEARVOUS AND SHACKY TOO THAT WAS THE FIRST WEEK OF USE AFTER THAT I WAS OK!

I started takink phentermine a month ago i have lost 11 pounds already.I am very pleased this is the first diet pill i have taking thats worked for me.

what are the long term effects of phentermine?