Medicines for blood clotting disorders or diabetes (e.g. warfarin, insulin, metformin)
Medicines for mental health conditions (psychiatric disorders, antidepressants, or antipsychotics)
Medicines used to treat epilepsy (e.g. sodium valproate, carbamazepine, phenobarbital, phenytoin)
Medicines for heart problems or high blood pressure (e.g. quinapril, amlodipine, beta-blockers)
Antibiotics (e.g. tetracycline, rifampicin, rifabutin, penicillins, cephalosporins)
Antihistamines used for allergies
Efavirenz or other HIV medicines (including protease inhibitors such as ritonavir)
Halofantrine (another type of antimalarial)
Tramadol (for severe pain)
Ketoconazole or other antifungal medicines
Metoclopramide (for nausea or vomiting)
Etoposide (used in cancer treatment)
Antacids containing aluminium, calcium, or magnesium
Medicines containing iron, zinc, or bismuth salts
Ciclosporin (used after organ transplants or to suppress the immune system)
Methotrexate (used for rheumatoid arthritis, psoriasis, or cancer)
St John’s Wort (herbal medicine for low mood or anxiety)
Oral contraceptive pills (may have reduced effectiveness with some antimalarials)