A Answers (1)
Stacy Wiegman, PharmD, Pharmacy, answeredDepending on how serious your infection is, your doctor will determine your dosage of ampicillin. You may have ampicillin injected through a large muscle or take the medication through an intravenous solution. The intravenous solution may be given four to six times a day, for about 30 minutes. The oral capsule or liquid is often given four times a day as well.