Spasmodin is used to treat peptic ulcers and abdominal pain. This medicine contains oxyphenonium, an antimuscarinic agent prescribed for peptic ulcers and prevention of muscle spasms in the digestive system. Spasmodin is a combination medicine used to treat abdominal pain associated with acidity. It works effectively to reduce abdominal pain, bloating and cramps by relaxing the muscles of the stomach and intestines. It also works to neutralize excess acid in the stomach and relieves indigestion or heartburn.