Amoxicillin begins working within a few hours after starting the antibiotic. You may start to feel better within 48 to 72 hours. However, you should always finish taking all your prescribed ...

Penicillin oral tablets: 250 mg or 500 mg Penicillin oral liquid suspension: 125 mg/5 mL or 250 mg/5 mL The dosing recommendations for amoxicillin and penicillin vary depending on the person's age ...