Phenylephrine and Zavegepant interaction
Phenylephrine and Zavegepant: the Zavegepant prescribing label flags this combination with the strongest language, such as a contraindication, a boxed warning, or an instruction to avoid it.
Do not combine without a prescriber's guidance. The label language below is the strongest FDA uses.
What the FDA labels say
From the Zavegepant (ZAVZPRET) label · effective 2025-08-11
• Avoid use of intranasal decongestants; if unavoidable, administer intranasal decongestants at least 1 hour after ZAVZPRET administration.
Avoid concomitant administration of intranasal decongestants with ZAVZPRET.
When concomitant use is unavoidable, intranasal decongestants should be administered at least 1 hour after ZAVZPRET administration [see Clinical Pharmacology (12.3) ] .
Intranasal Decongestants Concomitant administration of ZAVZPRET with intranasal decongestants may decrease the absorption of zavegepant.
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Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.