Which one of the following is not an antibiotic?
- AErythromycin
- BOxytocin
- CPenicillin
- DTetracycline
- ENone of the above/More than one of the above
Show answer and explanation
Correct answer: (b) Oxytocin
Explanation
Oxytocin is a hormone, released by the posterior pituitary, that causes contraction of the uterus and the ejection of milk. It is not an antibiotic.
Erythromycin, penicillin and tetracycline are antibiotics.