PFIZERPEN® Other
(penicillin G potassium)
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Penicillin G Potassium and other antibacterial drugs, Buffered Pfizerpen (Penicillin G Potassium for Injection, USP) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
Immune system disorders
Acute myocardial ischemia with or without myocardial infarction may occur as part of an allergic reaction.
To report SUSPECTED ADVERSE EVENTS, contact (insert name of manufacturer) at (insert manufacturer’s phone number) or FDA at 1-800-FDA-1088 or http://www.fda.gov/ for voluntary reporting of adverse reactions.
This product's label may have been updated. For current full prescribing information, please visit www.pfizer.com.
For medical information about Buffered Pfizerpen, please visit www.pfizermedinfo.com or call 1-800-438-1985.
Rx only
LAB-0200-15.0
Revised: 06/2024
Find PFIZERPEN® medical information:
Find PFIZERPEN® medical information:
PFIZERPEN® Quick Finder
Health Professional Information
Other
To reduce the development of drug-resistant bacteria and maintain the effectiveness of Penicillin G Potassium and other antibacterial drugs, Buffered Pfizerpen (Penicillin G Potassium for Injection, USP) should be used only to treat or prevent infections that are proven or strongly suspected to be caused by bacteria.
Immune system disorders
Acute myocardial ischemia with or without myocardial infarction may occur as part of an allergic reaction.
To report SUSPECTED ADVERSE EVENTS, contact (insert name of manufacturer) at (insert manufacturer’s phone number) or FDA at 1-800-FDA-1088 or http://www.fda.gov/ for voluntary reporting of adverse reactions.
This product's label may have been updated. For current full prescribing information, please visit www.pfizer.com.
For medical information about Buffered Pfizerpen, please visit www.pfizermedinfo.com or call 1-800-438-1985.
Rx only
LAB-0200-15.0
Revised: 06/2024
Resources
Didn’t find what you were looking for? Contact us.
Chat online with Pfizer Medical Information regarding your inquiry on a Pfizer medicine.
*Speak with a Pfizer Medical Information Professional regarding your medical inquiry. Available 9AM-5PM ET Monday to Friday; excluding holidays.
Submit a medical question for Pfizer prescription products.
Report Adverse Event
Pfizer Safety
To report an adverse event related to the Pfizer-BioNTech COVID-19 Vaccine, and you are not part of a clinical trial* for this product, click the link below to submit your information:
Pfizer Safety Reporting Site*If you are involved in a clinical trial for this product, adverse events should be reported to your coordinating study site.
If you cannot use the above website, or would like to report an adverse event related to a different Pfizer product, please call Pfizer Safety at (800) 438-1985.
FDA Medwatch
You may also contact the U.S. Food and Drug Administration (FDA) directly to report adverse events or product quality concerns either online at www.fda.gov/medwatch or call (800) 822-7967.