U.S. doctors online nowAsk doctors free
KY
A male asked:

I believe i have pmle and read that antihistamines can help. i take 10mg of cetirizine every morning. can i take a 180mg allegra in the afternoon?

1 doctor answer3 doctors weighed in
Dr. Charles Cattano
Gastroenterology 40 years experience
What's the point?: Both Cetirizine and Allegra (fexofenadine) are antihistamines. While drugs.com identifies no interactions between the two medications, they both have the same mechanism of action. Beside, photosensitivity may signal diseases other than PMLE like porphyrias that warrant you get checked before self overmedicating for a possibly wrong condition.
Last updated Jun 2, 2017

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.