Steroidal hormones, their derivatives and structural analogues; other than cortisone, hydrocortisone, prednisone , prednisolone , halogenated derivatives of corticosteroidal hormones, oestrogen and progestogens

Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones. · Organic chemicals