Table 3 Ten most frequently appearing therapeutic classes and examples of medications

Simple analgesics and antipyretics

Paracetamol

Combination simple analgesics

Paracetamol & codeine; paracetamol, codeine & doxylamine; ibuprofen & codeine

Narcotic analgesics

Fentanyl; oxycodone; morphine; codeine phosphate

Nonsteroidal anti-inflammatory agents

Ibuprofen; celecoxib; diclofenac; naproxen; piroxicam

Antipsychotic agents

Aripiprazole; risperidone; olanzapine; zuclopenthixol; haloperidol

Antidepressants

Citalopram; venlafaxine; amitriptyline; doxepin; dothiepin

Anticonvulsants

Gabapentin; lamotrigine; phenytoin; carbamazepine; sodium valproate

Antihypertensive agents

Ramipril; irbesartan; irbesartan & hydrochlorothiazide; nifedipine; diltiazem

Anticoagulants, antithrombotics

Warfarin; clopidogrel; aspirin (≤100 mg); apixaban

Antihistamines

Cetirizine; promethazine; dexchlorpheniramine; fexofenadine