Re: how long does keflex take to work
It may sometimes take 24 to 36 hours before the benefits of your antibiotics are felt, depending on the dose you take. If you can, you should try to contact your out of town dentist (cell phone, other emergency number) to make the sure the dose you're taking will be effective.
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Last edited by Well-come; 01-18-2008 at 06:15 PM.