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idrocilamide

n. A drug used as a topical cream to treat lumbago and other muscular pain.

Wikipedia
Idrocilamide

Idrocilamide (trade names Talval, Srilane, Relaxnova, Brolitène) is a medication with skeletal muscle relaxant and anti-inflammatory actions used as a topical cream to treat lumbago and other kinds of muscular pain; it is available on prescription or over-the-counter in France and various other countries.