What drugs cause hyperkalaemia?
Potassium-sparing diuretics
ACEi & ARBs
Heparin
NSAIDs
Drugs that cause hyponatraemia?
Diuretics (especially thiazide) SSRIs APs NSAIDs Carbamazepine
Drugs that prolong QT interval?
SSRIs TCAs Quinidine/Amiodarone Antipsychotics Methadone Erythromycin/Clarithromycin
Drugs that lower seizure threshold?
SSRIs
Tramadol
Bupropion