1 doctor weighed in:

How long after taking guaifenesin ac for cough can I take Benadryl (diphenhydramine). I know that the codeine and Benadryl (diphenhydramine) can have additive effects on CNS depression.

1 doctor weighed in
Dr. Vahe Yetimyan
General Practice

In brief: No additive effect

between cough medication that you are going to take and Benadryl (diphenhydramine).
I hope this helps. For more discussion make a virtual appointment at www.healthtap.com/dryetimyan

In brief: No additive effect

between cough medication that you are going to take and Benadryl (diphenhydramine).
I hope this helps. For more discussion make a virtual appointment at www.healthtap.com/dryetimyan
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