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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How Long One Can I Use Phentermine?

I have been on 1/2 tablet of Phentermine for 5 days; I have mild regurgitation and I am 52 years old. I have tried several healthy diets, and am having an extremely difficult time losing weight (5 6 and 180 lbs.). What is a safe period of time for taking Phentermine, and is 1/2 tablet associated with all of the problems I have seen with the full dose?
Fri, 7 Oct 2016
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Diabetologist 's  Response
Phentermine can be taken for a few weeks, but the efficiency decreases after first week; so i would generally ask my patient to take it for around 2 weeks or for a maximum of 3 weeks.
Half a tablet might have milder or no side effects but at times can be same as that of full dose.
Apart from phentermine, I would advice my patient regular exercise, diet and behavioural counselling for long term weight loss.
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How Long One Can I Use Phentermine?

Phentermine can be taken for a few weeks, but the efficiency decreases after first week; so i would generally ask my patient to take it for around 2 weeks or for a maximum of 3 weeks. Half a tablet might have milder or no side effects but at times can be same as that of full dose. Apart from phentermine, I would advice my patient regular exercise, diet and behavioural counselling for long term weight loss.