Malarium Mefloquine Quinine Sulphate
ModerateTaking mefloquine with quinine sulphate, quinine, chloroquine, antihistamines, TCAs or phenothiazines can raise the risk of ECG abnormalities. It may also raise the risk of seizures with quinidine or quinine.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.