4.1 Therapeutic indications
For the treatment of advanced hormone dependent prostatic carcinoma (stage C or stage D according to the classification of Murphy et al. in Cancer, 45, p 1889-95, 1980) in which suppression of testosterone is indicated; however, not after bilateral orchiectomy (no further reduction of testosterone level by buserelin to be expected).
Buserelin acts by blockade and subsequent down-regulation of pituitary LHRH receptor synthesis. Gonadotropin release is consequently inhibited. As a result of this inhibition there is reduced stimulation of testosterone secretion and serum testosterone levels fall to the castration range. Before inhibition occurs there is a brief stimulatory phase during which testosterone levels may rise.
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Drug Licencing
Drugs appearing in this section are approved by UK Medicines & Healthcare Products Regulatory Agency (MHRA), & the European Medicines Agency (EMA).