title: Oral absorption and bioavailability of ampicillin derivatives in calves.
mesh_terms: D000284:Administration, Oral; D000658:Amoxicillin / Q000008:administration & dosage / Q000378:metabolism; D000667:Ampicillin / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000378:metabolism; D000818:Animals; D001682:Biological Availability; D002417:Cattle / Q000378:metabolism*; D005215:Fasting; D008892:Milk; D010406:Penicillins / Q000008:administration & dosage / Q000378:metabolism; D010917:Pivampicillin / Q000008:administration & dosage / Q000378:metabolism
chemical_list: D010406:Penicillins; D010917:Pivampicillin; D000667:Ampicillin; D000658:Amoxicillin