| penicillin V benzathine | Benzathine phenoxymethylpenicillin;penicillin for oral use. (05 Mar 2000) |
|---|---|
| penicillin V hydrabamine | Hydrabamine phenoxymethylpenicillin;a compound with preparation and uses analogous to those of penicillin G hydrabamine. (05 Mar 2000) |
| penicillinase | <enzyme> Penicillin amino á lactamhydrolase: an enzyme produced by certain bacteria which converts penicillin to an inactive product and thus increases resistance to the antibiotic. A purified preparation from cultures of a strain of Bacillus cereus is used in treatment of reactions to penicillin. (18 Nov 1997) |
| penicillinate | A salt of a penicillic acid (i.e., of a penicillin). (05 Mar 2000) |
| penicillins | A group of antibiotics that contain 6-aminopenicillanic acid with a side chain attached to the 6-amino group. The penicillin nucleus is the chief structural requirement for biological activity. A change in the nucleus will lead to a decrease in anti-bacterial activity. The side-chain structure determines many of the antibacterial and pharmacological characteristics. (goodman and gilman's the pharmacological basis of therapeutics, 8th ed, p1065) (12 Dec 1998) |