What visual checks are required before administering the Brancaster Pharma Limited product histamine dihydrochloride 0.5 mg/0.5 ml solution for injection?

Before administration, visually inspect the Brancaster Pharma Limited product histamine dihydrochloride 0.5 mg/0.5 ml solution for injection for particulate matter and discolouration; the solution must be clear and colourless.