1 ml contains: bupivacaine hydrochloride 5.0 mg + adrenaline 5 microgram.
Marcain adrenaline is isotonic solution.
Excipients/Inactive Ingredients: Sodium chloride (tonicity contributor), sodium metabisulphite (antioxidant), sodium hydroxide/hydrochloric acid for pH adjustment to 3.3-5.0 and water for injection.