| abstract |
A steroid compound of 3β, 5α, 6β-trihydroxyl having the formula A or a pharmaceutically acceptable salt thereof for use in the prophylaxis or treatment of altitude sickness caused by hypobaric hypoxia: ** Formula ** wherein R1 is H, a linear or branched terminal alkenyl alkyl having 1 to 5 carbon atoms, or CH (CH3) (CH2) 3CH (CH3) 2. |