Penicillin	Dosage, Route, and Frequency
Sodium penicillin G		10,000-20,000 lU/kg, IV or IM, qid
Potassium penicillin G		25,000 lU/kg, PO, qid
Procaine penicillin G		10,000-30,000 lU/kg, IM or SC, sid- bid
Benzathine penicillin G		10,000-40,000 lU/kg, IM (horses) or SC (cattle), every 48-72 hr
Penicillin V		15,000 lU/kg or 8-10 mg/kg, PO, tid
Cloxacillin		10-25 mg/kg, IM or PO, qid
Ampicillin		5-10 mg/xg, IV, IM, or SC, bid-tid 1025 mg/kg, PO, bid-qid
Amoxicillin		4-10 mg/kg, IM, sid-bid 10-20 mg/kg, PO, bid (dogs) or sid-bid (cats)
Sodium carbenicillin		10-20 mg/kg, IV or IM, bid-tid
Potassium clavulanate: amoxicillin (1:4)		10-20 mg/kg (amoxicillin) and 2.5-5 mg/kg (clavulanate), PO, bid
Probenecid (prolongs blood concentrations of penicillins that have short plasma half-lives or that are costly)		1-2 mg/1,000 IU penicillin G (dogs), PO, qid
Amoxicillin-clavulanic acid		10-20 mg/kg, PO, bid-tid
Imepenem		1-7 mg/kg, IV or IM, tid-qid
Meropenem		12-24 mg/kg, IV or SC, tid-qid
Ticarcillin		40-110 mg/kg, IM or IV, every 6-8 hr