Suxonium Suxamethonium Chloride Morphine Sulphate
ModerateMorphine is on the leaflet's list of medicines that can interact with suxamethonium chloride. In practice, taking morphine around the time you receive suxamethonium may change how the muscle relaxant works. The leaflet doesn't say in what way here. Both are strong medicines given in hospital, usually around surgery. The anaesthetist should know about all your medicines, including morphine, so they can choose the doses and watch you closely.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.