Aminosteroide, structurally similar to pancurone. Probably not significantly metabolised. Two references consider it (probably) safe.

(To be edited, initial data ST OCT 04) Aminosteroide muscle relaxant used in surgery. Partly excreted via bile. No metabolites have been identified in plasma or urine. South African list: use with care. French list: authorized.

Uneventful use reported in 1 patient with acute porphyria.