
1) Muscle relaxant
Found on
https://www.crosswordclues.com/clue/chlorzoxazone

<chemical> A centrally acting central muscle relaxant with sedative properties. It is claimed to inhibit muscle spasm by exerting an effect primarily at the level of the spinal cord and subcortical areas of the brain. ... Pharmacological action: muscle relaxants, central. ... Chemical name: 2(3H)-Benzoxazolone, 5-chloro- ... (12 Dec 1998) ......
Found on
http://www.encyclo.co.uk/local/20973

(klor-zok´sә-zōn) a skeletal muscle relaxant used to relieve discomfort of painful musculoskeletal disorders; administered orally.
Found on
http://www.encyclo.co.uk/local/21001
No exact match found.