1 doctor weighed in:

Is guaifenex a prescription medication?

1 doctor weighed in
Dr. Heidi Fowler
Psychiatry

In brief: Guaifenex

Guaifenex is available both over the counter and by prescription.

In brief: Guaifenex

Guaifenex is available both over the counter and by prescription.
Dr. Heidi Fowler
Dr. Heidi Fowler
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