dantrolene
C2CEFR level
98/100Rarity: very rare
TechnicalRegister
A skeletal muscle relaxant that inhibits calcium release from the sarcoplasmic reticulum, the specific treatment for malignant hyperthermia.
Dantrolene was reconstituted urgently and given until the hypermetabolic crisis abated.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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