CompositionTolperisone (150 mg) SALT INFORMATIONTolperisone (150 mg) TYPICAL USAGE Muscular hypertension, obliterative vascular disease. SIDE EFFECTS Muscle weakness, somnolence. DRUG INTERACTION Tell your doctor of all the medications you take (prescription and nonprescription) especially of: probenecid, tetracyclines, allopurinol. This drug may interfere with the effectiveness of birth control pills. Discuss using other methods of birth control with your doctor. This medication can affect the results of some diabetic urine testing products (cupric sulfate-type). Consult your doctor or pharmacist for recommendations. Do not start or stop any medicine without doctor or pharmacist approval. MECHANISM OF ACTION Tolperisone is a centrally-acting muscle relaxant that acts at the reticular formation in the brain stem by blocking voltage-gated sodium and calcium channels.