Nausea, vomiting, diarrhoea, GI upset, oral irritation and sensitisation. Rarely, rash, urticaria, Stevens-Johnson syndrome, tachycardia, bronchospasm, facial swelling, nonspecific myalgia
Vaginal tablet: May damage latex contraceptives (e.g. diaphragms, condoms), additional contraceptive measures should be taken. Localized sensitization.