Penicillins

Drug

Common Uses

Some Potential Side Effects

Carbenicillin

Cloxacillin

Flucloxacillin

Piperacillin

Ticarcillin

Wide range of infections, including streptococcal infections, enterococcal infections, syphilis, and Lyme disease

Nausea, vomiting, and diarrhea*

Allergic reactions, such as rash and hives, with serious anaphylactic reactions

Brain and kidney damage (rare)

* Almost any antibiotic can cause Clostridioides difficile–induced diarrhea