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About PhentermineUse this discussion forum to share your experience with Phentermine side effects. What would you tell your best friend about this product? Please remember that we do not give medical advice. That is for your local health care provider, who is familiar with your medical history. You can use the form below to add your comments, feedback or Phentermine review.
I started taking Phentermine on 12 Mar 2010 and the first day. I was so pumped up because two of my coworkers have been taking it and they have really lost a lot of weight.. I lost four pounds in the first week but I can no longer tolerate the constipation. I took stool softners and that worsen the situation. I have noticed my hair is breaking off so bad in the top. I would really love to continue with the 3 month plan but I really miss my regular bowel movements. My hair is all natural and I do not apply heat to it but maybe one week. I've been so dizzy that I have to stand still and just wait until my vision is clear again. My heart rate has increased as well. I know the hair loss hasn't been recorded as a sympton but it is definitely one of mine.. Women please be careful. The rapid weight loss is Excellent but the side effects are not. Watch your hair even though it's not listed as a side effect. That doesn't mean it isn't caused by Phentermine. Irregular periods are not listed as well. I haven't even been taking the pill for a month yet and I'm looking for my missed cycle and my hair.. I'm out..NO MORE PHENTERMINE FOR ME...
Subj: Sore throat and chills
I started taking phentermine yeszterday and woke up today with a horrible sore throat and now getting the chills. Is this related to the pills?
AskDocWeb: Although it is not listed as a side effect, several people have reported a sore throat while taking Phentermine. Chills however, are not associated with Phentermine.
Subj: Hair drug tests
Phentermine 37.5 mg trim care solutions generic rx brand I have been taking this for about a month I work a casino and they do a hair drug tests am not worried since I have a prescrpt but at the same time I was wondering how long does it stay in your hair?
AskDocWeb: How long the drug would show up depends on the length of your hair. Given that your hair grows about a half an inch per month, if you keep your hair 6 inches long it would stay in your hair for a year.
I was on Phentrimine for 6mos lost 30lbs the dr put me on Tenuate to lose the last 10lbs and I am sooo tired... Has anyone heard of this? I've been on it for 4 days.
Hi I've been taking phentermine for a month and lost 10lbs...I havent read anything about bloating and I'm suffering terribly for the first time ever in my life. Also a slight annoying pain underneath my right ribcage. My Primary care physician ordered a sonogram that showed nothing out of the ordinary. I'm wondering if anyone else is having the same symptoms.
Subj: Smart way to go?
I am 22 years old. I have had three kids since october 2006. I got my tubes tied after my last baby, and have been trying to lose the weight. I am finding it super hard for me to lose it! I am 5'7 and used to be 115 pounds. Now i am 168 pounds. My dr. perscribed me this diet pill recently & I have not began taking it. I am a little woried about the side affects, and the weight coming back on after I get off of it. I don't plan on staying on this forever! I just want to lose about 20 pounds and be good. Is this the smart way to go? I have tried diet & exercise & it's not seeming to work for me. I lose 7 pounds then gain 10 back. I am not very good on the whole diet thing, since i've never had to worry about it before. But i don't want to do something now that I may regret later.
AskDocWeb: Of all the approaches to weight loss, the one that people regret least is educating themselves about nutrition. It is possible to make smarter choices as to what and how much to eat. Your experience with gaining the weight back is familiar to most of the people who lose weight too fast. The smart way to go is to lose the weight slowly over time. Those who lose a pound or less per day have a much better chance of keeping the weight off long-term. That said, most doctors would not prescribe this drug unless they thought you could benefit from its use, short term of course.
Subj: Stiff muscles
Well i have been on phentremine for 2 days now and i sometimes feel like my leg muscles are stiff and very little numb, but i think that is from them feeling stiff.is that normal. i have never taken phentermine, so im not used to the side effects.is this my body adjusting to it?
AskDocWeb: The symptoms that may occur as the body adjusts to the drug are dry mouth, unpleasant taste in the mouth, sleeplessness, irritability, stomach upset and/or constipation. Others have reported problems with their legs while taking Phentermine (cramps, stiffness, aches, and pain) but these are not listed as possible side effects. Those reporting leg pain also report that it went away within 3 weeks of discontinuing the drug.
Subj: Hair loss
I have been taking phentermine for about 10 months have lost 50lbs i feel really great but my hair is getting really thin on top is it the pills or is it not getting enough calories? I haven't lost any more weight for awhile. What should I do? Will the hair loss come back? Is there a vitiamn you can take?
AskDocWeb: Although hair loss is not listed as an officially recognized side effect several people have reported it. If a drug causes hair loss, it usually doesn't stop until the drug is discontinued.
Subj: Elevated liver enzymes
I am very concerned regarding use of phentermine. I had elevated liver enzymes and my doctor took me off of phentermine, the levels returned to normal in a few weeks, but I have seen others on the internet state that they have had the same problems. I really need to find a safe appettite suppressant that doesn't harm my stomach (it's very sensitive) and other body organs!
Subj: Concerned about constipation
I have been taking phentermine for 4 months and only lost about 7 pounds during first month. I have had only minor diziness and restlessness, but mostly I am concerned about the severity of constipation and causing rectal bleeding or fissures that I never had prior to the medication.
AskDocWeb: Please make sure that you report these symptoms to your doctor.
Subj: Muscle stiffness and weakness
i have been on phentermine for 4 days now and I was wondering if it could cause muscle stiffness and weakness, and it is kind of painful. Is this normal and will this go away?
AskDocWeb: Muscle stiffness and weakness are not normal and should be reported to your doctor.
Subj: A small price to pay
I took Phentermine from 11/24/08-03/24/09...I am 4'10" and I was 135 lbs....I had high cholesterol and I was depressed about what I looked like I was in a size 12...I didnt want to wear a bikini ever again..6/2008 I was 100 lbs and looked awesome...today I weigh 105 and I still look great. I exercise 3 times a week cardio and watch what I eat and I have kept it off...I have anxiety and took it anyways...I had one major panic attach while on it toward the end of 03/2008, a small price to pay for my overall happiness...I am now in a size 3 and I love my life...phentermine is a wonderful drug under the right circumstances but it is not for everyone...I would take it again in a heartbeat but you have to decide if its really necessary bc if you use it too much your body wont react and it is addicting...my doc only let me take it for three months that was it...
Subj: Slight dizziness
I started taking Phentrimine April 1, 2010 and lost 4 pounds the first week, however this week is my second week and I gained a pound back. I didn't work out as much as I should the second week, so I'm back to the gym everyday. The side effects are very minimal with slight dizzyness here and there, but so far so good.
Subj: Extreme mood swings and numbness
I just started taking phentermine and as of today it has been one week. I have noticed extreme mood swings (which I know is a side affect) restlessness, and less cravings as expected BUT I am experiencing numbness in my hands and toes. It is a tingle, warm sensation, that feels like my hand is about to fall asleep. The thing that worries me is it went from every so often to all day today. It was just my hands and now it's my hands and feet and sometimes my arm. No matter if I am moving or sitting it's still there. What does this mean and is it damaging me in any long term way?
AskDocWeb: That numbness and tingling is called peripheral neuropathy. Unfortunately there are quit a numerous of possible causes. Here is a partial list:
Subj: Urine test
I've been taking phentermine for about a month now, and I'm on probations and take random urine test, and I took one today. What will phentermine come up as in the test? And I took the pill today too.
AskDocWeb: Phentermine has been reported to sometimes cause a false positive for amphetamines and ecstasy on urine tests (References 3, 4, and 11).
Subj: Amino acids
You need amino acids for phentermine to work effectively. Go to a diet doctor who studies the chemical processes of thyroid and weight loss.
Subj: Phentermine with thyroid medication?
I am taking 50mg Thyroxin medication for my thyroid - is it safe to use Phentermine with thyroid medication?
AskDocWeb: There are no drug interactions listed between Phentermine and Thyroxin but you should always consult with your doctor or pharmacist. Here is a list of the drugs that are known to interact with Phentermine:
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