PENICILLIN G treats infections caused by bacteria. It belongs to a group of medications called
penicillin antibiotics. It will not treat
colds, the
flu, or infections caused by viruses. Get Penicillin G Potassium for as low as $150.13, which is 81% off the average retail price of $799.84 for the most common version, by using a GoodRx coupon.