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A member asked:

If a medication is marketed as delayed release and available in 20mg & 40mg, does 20mg q12h have the same effect on serum concentration as 40mg qd?

A doctor has provided 1 answer

Depends on medicine: The answer to your question depends on what medicine it is. Delayed release medicines are built to dissolve more slowly than others. The metabolism of different drugs varies a lot. For some medicines there may not be much difference practically, for others this could be a big difference.

Dr Altman agreed

Answered 5/21/2016

3.8k views

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