Can I drink grapefruit juice with topamax and effexor
Excellent question! Grapefruit is an Cyp3A4 inhibitor that interferes with many drugs, including a few psych meds.
You're safe with Effexor/Topamax ~ no interaction! Good, since I take Effexor and I love grapefruit juice!
At the top of the page on the grey bar you'll see *Interactions Checker* and you can use that tool to check how these drugs (or any other drugs) interact with grapefruit.
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