You are required to extemporaneously prepare salicylic acid…

You are required to extemporaneously prepare salicylic acid and aqueous cream. The formula calls for 10g of salicylic acid to be added to 100g of 2%w/w salicylic acid and aqueous cream.  What is the concentration of salicylic acid in %w/w in the final prepared product?   Give your answer to ONE (1) decimal place. 

You are an independent prescriber running a pain clinic. You…

You are an independent prescriber running a pain clinic. You see a 54-year-old patient who is prescribed MST (morphine sulphate) 45mg MR tablets, 1 BD.  You wish to prescribe breakthrough analgesia using morphine 10mg/5mL liquid.  What is the maximum dose in milligrams of morphine that this patient should be prescribed for breakthrough analgesia? 

A 27-year-old patient has been started on a reducing dose of…

A 27-year-old patient has been started on a reducing dose of diazepam. The prescription states the following:   Diazepam 2mg tablets  6mg to be taken daily for 14 days then 4mg daily for a further 14 days until review appointment.  How many diazepam 2mg tablets are required to fulfil this 28-day prescription?