Allergies Home > Benadryl Warnings and Precautions

Before taking Benadryl, you should talk with your healthcare provider if you have glaucoma, asthma, or high blood pressure. Other warnings and precautions with Benadryl include avoiding this drug if you are breastfeeding, watching out for potential drug interactions, and being aware of the medicine's sedation effects. Benadryl products (oral or topical) should never be used in newborns or premature infants.

What Should I Tell My Healthcare Provider Before Taking Benadryl?

You should talk with your healthcare provider prior to taking Benadryl® (diphenhydramine hydrochloride) if you have:
Also, let your healthcare provider know if you are:
  • Pregnant or thinking of becoming pregnant
  • Breastfeeding.
Make sure to tell your healthcare provider about any other medications you are taking, including prescription and non-prescription medicines, vitamins, and herbal supplements.
Written by/reviewed by:
Last reviewed by: Kristi Monson, PharmD;
Last updated/reviewed:
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