The MHRA has highlighted Yellow Card reports of harm following confusion between the drugs listed below.

• Clobazam (for anxiety) and Clonazepam (antiepileptic)
• Atenolol (beta blocker) and Amlodipine (calcium channel blocker)
• Propranolol (beta blocker) and Prednisolone (corticosteroid)
• Risperidone (antipsychotic) and Ropinirole (dopamine agonist)
• Sulfadiazine (antibiotic) and Sulfasalazine (DMARD)
• Amlodipine (hypertension) and Nimodipine (subarachnoid haemorrhage)

Suspected adverse drug reactions, including those arising from medication errors, should be reported on a Yellow Card.