Description: ETODOLAC is a non-Steroid Anti-Inflammatory Drug, also known as an N.S.A.I.D. It treats pain, inflammation, and swelling. This is one of the best nootropics for muscle relaxation. Tc is a steroidal saponin derived from the root bark of the South American Thiocolchicine genus. It contains several types of steroid compounds, including colchicine, lithocholic acid, and glycosides. Colchicine is known to cause neuromuscular disorders and skeletal muscle pain. It slows down the action potentials in nerve cells, which increases the time between stimulus and response.