Because it affects voltage-gated ion channels in the heart, it is contraindicated in people with long QT syndrome and in people taking a drug that might prolong QT time like sultopride, disopyramide, cisapride, domperidone, rifampicin or ketoconazol. It is also contraindicated in people with epilepsy or badly controlled asthma.
Amifampridine
Secnidazole
Rifampicin
Miproxifene phosphate
Tinidazole
Rifabutin
Azficel-T
Piretanide