The combination of<unk>  with pharmaceuticals that prolong QT time increases the risk of ventricular tachycardia, especially torsade de pointes; and combination with drugs that lower the seizure threshold increases the risk of seizures. Interactions via the liver's cytochrome P450 enzyme system are considered unlikely.
Amifampridine
Secnidazole
Rifampicin
Miproxifene phosphate
Tinidazole
Rifabutin
Azficel-T
Piretanide