What it means
The oldest group of antibiotics. Members include penicillin G and V, amoxicillinuh-mok-sih-SIL-inA penicillin-type antibiotic, usually taken by mouth, that kills many kinds of bacteria.Full entry , ampicillin, nafcillin and piperacillin. They are used for many infections, such as strep throat, ear infections, syphilis and some pneumonias. Allergy to penicillin is the most commonly reported drug allergy, ranging from rash to anaphylaxisan-uh-fuh-LAK-sisA sudden, severe allergic reaction that affects the whole body.ana- away, against-phylaxis protectionFull entry . A few people allergic to penicillins also react to cephalosporins.
For the nurse
Ask about allergies before the first dose, and watch the client for signs of a reaction, especially in the first 30 minutes after an injection. Teach the client to finish the full course and to report rash, hives or trouble breathing.
At a glance
| Drug class | beta-lactam antibiotic |
|---|---|
| Spanish | penicilinas |
| Also written | penicillin, penicillin class |
Related terms
antibiotic
A drug that kills bacteria or stops them from growing.
anaphylaxis
A sudden, severe allergic reaction that affects the whole body.
bacterial infection
An infection caused by bacteria growing in the body.
ceftriaxone
A third-generation cephalosporin antibiotic given by injection into a vein or muscle.
cefazolin
A first-generation cephalosporin antibiotic given by injection into a vein or muscle.