In this scenario, a patient seeks counselling from a community pharmacist regarding his recent prescription for metronidazole. The patient is concerned about the medication's use, potential side effects, and its interaction with alcohol. The student pharmacist needs to gather essential information, address the patient's questions, and provide guidance on the safe and effective use of metronidazole.  

Please ensure that this scenario and mark scheme align with the most up-to-date guidelines from the UK NICE and the BNF when using it for your OSCE assessment. 

You will need a student pharmacist and an actor for this OSCE station.