Mebeverine is a medicine that belongs to a class of drugs known as antispasmodic agents. It exerts effects on the gastrointestinal smooth muscles without affecting regular intestine motility. The actual mechanism is unknown, however a couple of mechanisms might contribute to its impact on the gastrointestinal tract, such as a decrease in ion channel permeabilities, blockade of norepinephrine reuptake, adjustments in water absorption and weak anti-muscarinergic and phosphodiesterase inhibitory effects.