How much amoxcillian can be taken in one dose ? i am to take 2000 mg 1 hr before cavity feeling. is that safe?

Amoxicillin Dose: 2000mg one hour before your appointment is the appropriate dosage for that antibiotic for your condition. It may sound like a lot but it is not.

Antibiotic pre-med: Amoxicillin 2 grams orally 1 hour prior to the dental procedure. The guidelines for antibiotic per-medication are constantly changing, therefore consultation with your dentist is a standard of care.