Sjældne (mindre end 1 for hver 1. 000 patienter, men mere end 1 for hver 10. 000 patienter): kramper, sår i tyktarmen og brystsmerter (sandsynligvis forårsaget af kramper i kranspulsåren).
Rare (less than 1 in 1,000 patients but more than 1 in 10,000 patients): convulsions, ulcer in the intestine and chest pain (probably caused by coronary spasm).