The active ingredient is phenylephrine hydrochloride. Each Minims unit contains approximately 0.5 ml eye drops solution of Phenylephrine hydrochloride 2.5% w/v (12.5 mg) or 10% w/v (50 mg).
Excipients/Inactive Ingredients: The other ingredients are sodium metabisulphite (E223), disodium edetate and purified water.
This medicine does not contain a preservative as it is a sterile single use unit.