“Penicillin is toxic in guinea pigs but not to humans” ““Had they chosen to test penicillin on hamsters or guinea pigs, it is likely that it would have been discarded” Taken on face value the statements above are true – penicillin is toxic to guinea pigs (1). The trouble comes when this is used as … Continue reading Myth Busting: “Penicillin is toxic in guinea pigs but not to humans”