That differs for different antibiotics. For some it's only hours, that's why you need to take them several times a day. For others it can be days. It also matters if the doses are oral or intravenous. Talk to your pharmacist if you want to know about a specific one you have been taking.
Answered 3/22/2021
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Depends.: Half-life of penicillin is a couple of hours; that of Azithromycin - several days. Other meds are in between.
Answered 4/4/2020
4.8k views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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