A member asked:

I was given phentermine to take twice a day and didrex are they ok together?

3 doctors weighed in across 2 answers
Dr. Elizabeth Wallen answered

Specializes in Pediatrics

Nooo...: Were they given to you by the same physician? If not, did the physicians know you were on the other medication? Combining these two can be quite dangerous. They can cause heart problems, shortness of breath, chest pain, light headedness, fainting. They are essentially the same drug, same purpose. You are overdosing yourself.

Answered 9/28/2016

3.6k views

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NO: Both are amphetamines and combining the two will only increase the risk of adverse effects. Just use one at a time.

Answered 9/28/2016

3.6k views

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