Factive (generic: gemifloxacin) is a prescription medication used to treat certain infections. It belongs to a class of drugs known as antibiotics, which work by stopping the growth of certain bacteria.

It comes in tablet form and is usually taken once a day by mouth, with or without food.

Common side effects of Factive include diarrhea, rash, and headache. Factive can also cause dizziness. Do not drive or operate heavy machinery until you know how Factive affects you.