Treatment of acromegaly with bromocryptine.

Twelve acromegalic patients with clinical and biochemical evidence of active disease were studied whilst on bromocryptine (Sandoz) at a maximum dosage of 10--60 mg. The patients were followed for a period of 9--23 months. Clinically, ten patients showed a reduction or disappearance of sweating and seven patients had a reduction in soft tissue mass. Of the five patients who had diabetes prior to treatment, three reverted to normal glucose tolerance during treatment. Biochemically, there was no difference between mean plasma levels of growth hormone (hGH) before and on maximum therapy with bromocryptine. There was a significant difference between fasting plasma hGH before treatment with bromocryptine and following treatment for 9--23 months in five individual patients. Side effects were not disabling in this series except for a reversible paranoid psychosis in one patient. The overall results are disappointing; although some clinical features improved, plasma hGH levels returned to normal in only three patients. Bromocryptine has a limited place in the management of acromegaly for those patients in whom conventional therapy has been ineffective or is contraindicated.