Nefopam hydrochloride is a non narcotic analgesic with mild antipyretic and muscle relaxant effects. The chemical formula is c17h19no · HCl, the chemical structure belongs to cyclic o-methyldiphenhydramine, so it does not have the characteristics of non steroidal anti-inflammatory drugs, nor opioid receptor agonists. 20 mg intramuscular injection is equivalent to 12 mg morphine. The inhibition of respiration was slight. It has no inhibitory effect on circulatory system. No tolerance or dependence. For postoperative pain relief, cancer pain, acute trauma pain. It is also used for acute gastritis, biliary ascariasis, ureteral calculi and other visceral smooth muscle colic.
ChemNMR 1H Estimation
ChemNMR 13C Estimation