The active ingredients in Buscopan Venus are Hyoscine-N-butylbromide, a known antispasmodic substance that relieves the pain by acting on the muscle spasm which causes the pain; and Paracetamol which has analgesic properties. This special combination of Hyoscine-N-butylbromide + Paracetamol (Buscopan Venus) allows cramped muscles to relax and simultaneously delivers fast relief from pain.