propoxyphene napsylate/propoxyphene HCl

propoxyphene napsylate/propoxyphene HCl, (prōpok´səfēn nap´səlāt),

n brand name: Cotanal-65, Darvon, PP-Cap;
drug class: synthetic opioid narcotic analgesic (Controlled Substance Schedule IV);
action: depresses pain impulse transmission in the central nervous system by interacting with opioid receptors;
use: mild to moderate pain.