Question: what over the counter medicine works like amoxicillin?
Answer: amoxicillin (amoxicillin) Prescription only. ... 
9 alternatives.
Bactrim (sulfamethoxazole / trimethoprim) Prescription only. ... 
Cipro (ciprofloxacin) Prescription only. ... 
Levaquin (levofloxacin) Prescription only. ... 
Keflex (cephalexin) Prescription only. ... 
Cleocin (clindamycin) ... 
doxycycline (doxycycline)