I have a PDF of an equivalency chart for amphetamines, but phentermine doesn't seem to be on there. I was kind of curious as to the conversion rate when going from 60 mg of Adderall to phentermine. It seems to me like it takes an awful lot of phentermine to equal just 30mg of Adderall. Just wondering if there is a mathematical conversion like there is for other amphetamines. I am really looking for solid info... aka, real data, but am willing to hear people's experiences that have taken both of there's no scientific data out there. Thanks.
Is there a conversion rate for Adderall and phentermine. Unable to find one?
Question posted by kahealani9 on 27 May 2019
Last updated on 29 June 2021
I'm not sure if this will help much, but here is my experience.
P.S. I don't know the conversion rate, however, I don't think that there is one because they are two different classes of drugs.
Though, with that being said, I had been on adderall for about 5 years, up until a year ago. And my dosage was 30mg instant release 2x a day.
And last month my doctor started me on phentermine 8mg 1x daily and that felt mild compared to adderall.
However, this month she upped my dosage to 37.5mg 1x daily and I do notice similarities to when I was taking a 30mg adderall, in how it makes me body and mind feel.
I hope that helps!
I have a different answer, direct experience, and a solid doctor. I am on 60 IR Adderall and also 37.5 Phentermine. Phentermine is an amphetamine, so it's an 'upper' as well as the amphetamine (sp) Adderall. No idea of the conversion rate. Just wanted to clear that up.
There is no conversion rate from Adderall to phentermine since they don't have the same drug category.
Adderall is an amphetamine used to treat attention deficit hyperactivity disorder - ADHD while phentermine is a medication used together with diet and exercise to treat obesity.
Therefore, there is no conversion equivalent in switching from Adderall to phentermine.
Hope this made it clear. =)
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