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Doctor insights on: Phentermine Side Effects

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Dr. Gail Altschuler
400 doctors shared insights

Phentermine (Definition)

Phentermine is been around for about 60 years. Phentermine is an appetite suppressant the bariatrician in the winter of 2008. Has a article gives a great description of the medication phentermine. I have used Phentermine over the last nine years without any complications whatsoever. We only give a half of a 37.5 mg ...Read more


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What can I expect from the diet pill phentermine? Side effects?

What can I expect from the diet pill phentermine? Side effects?

Diet pills: Diet pills are not the best way to control your weight. Losing weight rapidly is not ideal. I would recommend: # Go on-line and look up "NuVal" that will help with your eating habits. # Exercise as readily as you can. # Possibly see a dietitian for more advice and help. Don't lose weight in a hurry. ...Read more

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Itchy small rash for 7days and now vertigo also starting to itch my feet too could this be a bad allergy,mite or qsymia (phentermine and topiramate) side effects? Im also on peeio

Itchy small rash for 7days and now vertigo also starting to itch my feet too could this be a bad allergy,mite or qsymia (phentermine and topiramate) side effects? Im also on peeio

Hard to say: Itch and dizziness are common symptoms, and are reported as side effects for many meds. Not familiar with your meds, but any med can have side effects. If you're concerned, get a medical exam. ...Read more

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Currently take Topamax & Phentermine daily. Any potential side effects as my wife and I try to conceive? Took about 3 months for 1st child (pre-meds).

Currently take Topamax & Phentermine daily. Any potential side effects as my wife and I try to conceive? Took about 3 months for 1st child (pre-meds).

Topomax/phentermine: that combo-marketed as Qsymia has a MAJOR educational effort around pregnancy as the drug is a pregnancy category X meaning it SHOULD NOT be used during pregnancy - at least in females. In males- my best recommendation is STOP it - for at least 3 months prior to planning a baby - once she is pregnant you can resume it(if you are taking it) I would NOT risk birth defects for some weight loss. ...Read more

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What are the side effects of phentermine?

What are the side effects of phentermine?

A #: Some of the possible side effects of Phentermine include: rapid heart rate, increased blood pressure, restlessness, trouble sleeping, palpitations, dizziness, tremor, headache, feeling up or down, dry mouth, constipation, loose stools & bad taste in mouth. Less common sxs include: hallucinations, aggression, fever, seizures, panic or mania. ...Read more

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What are the common side effects of phentermine?

What are the common side effects of phentermine?

Many side effects: 1allergic reaction in some 2 increse in blood pressure 3shotness of breath on exertion 4 chest pain and swelling of feet&ankle 5rapid heart beat or palpitation 6confusion or irritability 7 headache and blurred vision 8dizziness and tremors 9dry mouth and unpleasant taste in your mouth 10diarrhea or constipation and upset stomach 11 increased or decreased interest in sex 12 irregular heart rhythm. ...Read more

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What are the side effects of phentermine 37.5 mg?

What are the side effects of phentermine 37.5 mg?

Many side effects: 1allergic reaction in some 2 increse in blood pressure 3shotness of breath on exertion 4 chest pain and swelling of feet&ankle 5rapid heart beat or palpitation 6confusion or irritability 7 headache and blurred vision 8dizziness and tremors 9dry mouth and unpleasant taste in your mouth 10diarrhea or constipation and upset stomach 11 increased or decreased interest in sex 12 irregular heart rhythm. ...Read more

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How long does side effects of phentermine typically last?

How long does side effects of phentermine typically last?

Phenteramine: Phenteramine is a less than 24 hour medication otherwise you would be up all night! any adverse problems should go away by the next day - unless you keep taking the medication! obviously if something is wrong and persists you should see your doctor! ...Read more

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Can i take phentermine whilst in ketosis? What would be the possible side effects?

Can i take phentermine whilst in ketosis?  What would be the possible side effects?

Misunderstanding?: I know of no ethical physician who would recommend that you use Phentermine in any condition. This is a dangerous, ineffective, addicting drug. Asking doctors to give you permission to take an unsafe medication is asking us to break our ethical promise to do no harm to a patient. ...Read more

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I have noticed that when i take phentermine, my breathing actually becomes better. I thought one of its side effects was the opposite? What gives?

I have noticed that when i take phentermine, my breathing actually becomes better. I thought one of its side effects was the opposite? What gives?

Probably not related: Phentermine usually has little effects on breathing either way. It does improve energy levels because it is a stimulant and that may make it appear easier to breath. More importantly, Phentermine is known to increase blood pressure and can cause sudden cardiac death. Data on a related drug called Meridia showed increase heart attacks and strokes. Discuss with your hypertension md. ...Read more

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I was prescribed phentermine 37.5 mg been taking for 1 1/2 month. No side effects. I have loss 25 pounds. Is it safe to continue taking or harmful?

I was prescribed phentermine 37.5 mg been taking for 1 1/2 month. No side effects. I have loss 25 pounds. Is it safe to continue taking or harmful?

Too fast!: Fastin (phentermine) will effectively suppress appetite and help you lose weight; however, this weight loss is too fast! your weight loss curve is going to be u-shaped. It would be better to use the medicine, exercise, change bad eating habits, and have a more gradual weight loss. Too many people are impatient to lose weight, but, unfortunately, it is the rapid weight loss that bounces back. Continue slower! ...Read more

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What are the side effects of using phentermine 37.5 mg diet pills?

What are the side effects of using phentermine 37.5 mg diet pills?

Side effects: It works on the sympathetic nervous system so some common reactions are: palpitations, tachycardia, elevated blood pressure, insomina, nervousness, headache, tremor, diarrhea, unpleasant taste...You might have some or none of the above. Call your doctor to discuss if any new symptoms occur while starting the drug. Good luck. ...Read more

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Dr. Jeffrey Stevens
278 doctors shared insights

Ionamin (Definition)

Ionamin is an appetite suppressant which is a kind ...Read more


Dr. Walter Husar
289 doctors shared insights

Fastin (Definition)

Fastin is an appetite suppressant which is a kind ...Read more