Authors: J. Heresová 1; Vrzáňovám. 2 Authors‘ workplace: Endokrinologický ústav Praha Ředitel: doc. MUDr. V. Hainer, CSc. Klinika nukleární medicíny 2. LF a FN Motol Přednosta: doc. MUDr. Petr Vlček, CSc. 1; Interní klinika 2. LF a FN Motol Přednosta: doc. MUDr. Milan Kvapil, CSc. 2 Published in: Prakt. Lék. 2007; 87(3): 165-168 Category: Of different specialties
Gynecomastia in adult males often results from a drug-induced relative imbalance between concentrations of androgens and estrogens. These hormonal changes are induced by certain drugs or by pathological processes interacting with hormonal secretion, the enzymatic system or with sex steroid receptors. Chronic renal failure, liver disorders, thyrotoxicosis, adrenal hyperplasia or tumours might cause neurohumoral changes that in turn lead to secondary gynecomastia. Several drugs, such as anabolic steroids, digoxin, antihypertensives, some antirheumatic drugs, antidepressants, antiandrogens, neruoleptics and recreational drugs have been proposed to be responsible for drug-induced gynecomastia. Both phytoestrogens and pollutants have been also associated with gynecomastia.
Key words: secondary gynecomastia, drugs.
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