Phenytoin 30mg/5mL oral suspension contains 50mg of propylene glycol per 5mL. A patient is prescribed 90mg of phenytoin each day. What is the amount of propylene glycol (in milligrams) that they will consume each day?

You are working as a pharmacist independent prescriber in a rheumatology clinic. A patient is prescribed methotrexate 15mg once a week for rheumatoid arthritis and you wish to add in folic acid 5mg tablets to reduce the risk of adverse effects. You decide to prescribe ‘folic acid 5mg tablets, ONE tablet to be taken WEEKLY three days after the methotrexate dose’. How many folic acid 5mg tablets should you prescribe to provide treatment for four weeks?

You receive the following prescription for Miss HY who has oral candidiasis.   How many millilitres of nystatin 100,000units/mL suspension will Miss HY require to complete the 7-day course?  

A patient who requires insulin for type 2 diabetes uses Humulin M3 (100units/mL) 29 units before breakfast and 29 units before an evening meal. Humulin M3 is available in 3mL injection pens. How many full days will one 3mL Humulin M3 pen last for?

A patient is admitted to hospital after an overdose of citalopram tablets. A blood plasma concentration is measured at 1000mcg/L. If citalopram has a half-life of 35 hours, how many hours will it take for the plasma concentration to fall to a safe level of 250mcg/L?

You are a pharmacist working in a GP surgery where you are doing a training session with the new GP registrar about the prescribing of controlled drugs. Which of the following IS a legal requirement on any prescription for a schedule 2 controlled drug?

What is the weight of diclofenac in a 100g tube of 2.32%w/w Voltarol (diclofenac) 12-hour Emugel? Give your answer in milligrams.

You are working in a pharmacy and you receive an NHS prescription written by the local dentist for gabapentin capsules 300mg for nerve pain caused by a tooth extraction.  You check the Dental Practitioner’s Formulary (DPF) and gabapentin capsules are not included in the Formulary. Which of the following statements is CORRECT?

Who is credited with explaining the structure of the DNA double helix?

The Royal Pharmaceutical Society has produced professional guidance regarding the supply of over the counter (OTC) medicines from pharmacies. Which of the following statements does NOT form part of this guidance?