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Pfizer for Professionals Customer Support
For customer service, call 1-800-505-4426 Monday through Friday, 7:30 am to 9:30 pm.

Adverse Events
To report an adverse event or concern about the quality of a Pfizer product, call 1-800-438-1985.

Medical Inquiries
For medical questions concerning Pfizer products, call 1-800-438-1985, Monday through Friday, 8:00 am to 8:00 pm EST or visit If this information is not sufficient, please Submit a Medical Inquiry.

Pfizer Prescription Medicine
Patients or consumers with questions about Pfizer prescription medicines can call 1-800-TRY-FIRST (1-800-879-3477) Monday through Friday, 8:00 am to 8:00 pm EST.

Patient Assistance Programs
Programs designed to help people without prescription coverage save on many Pfizer medicines, regardless of their age or income. Learn more.

Pfizer Clinical Trials
If you are interested in participating in a clinical trial in the United States with Pfizer, please e-mail us with your area of interest to