Myotropic antispasmodic. The chemical structure and pharmacological properties are close to papaverine, but it has a stronger and longer action. Reduces the flow of calcium ions into smooth muscle cells (inhibits phosphodiesterase, leads to the accumulation of intracellular cAMP). Reduces the tone of smooth muscles of internal organs and intestinal motility, dilates blood vessels.Does not affect the vegetative - nervous system, does not penetrate into the central nervous system.
The presence of direct influence on smooth muscles can be used as an antispasmodic in cases when drugs from the group of M-cholinoblockers are contraindicated (closed-angle glaucoma, prostatic hyperplasia).
With parenteral administration, the drug appears in 2-4 minutes. The maximum effect occurs in 30 minutes.