Medications not yet evaluated by P&T are considered NON-FORMULARY. Always check 2 unique patient identifiers - NAME and DATE OF BIRTH - at every step!
Please be sure to document all clinical activities daily.
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Penicillin G potassium

penicillin G potassium
Drug Name Form Strength Formulary Unrestricted Formulary Restricted Non-Formulary Interchange
Pfizerpen POWDER FOR INJECTION, INJECTABLE 5,000,000 units      
Pfizerpen POWDER FOR INJECTION, INJECTABLE 20,000,000 units      

VIEW MORE Natural Penicillins
CLASS
08121604

Comments:

Penicillin G potassium is the workhorse IV penicillin product.

Penicillin G sodium should be automatically interchanged to penicillin G potassium on a 1:1 dosage ratio, unless the practitioner believes that the extra potassium cannot be tolerated. In these cases penicillin G sodium may be used. Pharmacists may perform this interchange automatically.

Change in Alaris Pump Programming - 5/26/26


Automatic renal adjustment per guidelines. See Antimicrobial Dosing Guideline and Renal Adjustment Policy (Adult) for more information.  CrCl calculation policy available here.


Reviewed: July 22, 2014


Last updated: May. 26, 2026







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