Androgens Flashcards
Testosterone is produced in
Leydig cells in men
Corpus Luteum and Adrenal cortex in women
Function of 5a reductase
converts Testosterone to DIhydrotestosterone and Estradial
Uses of Androgens
male hypogonadism
aplastic anemia
Osteoposrosis
Puberty for Testosterone deficient boys
incr. athletic performance: anabolic steroids
AEs of Androgens
Excessive masculinization
decr. sperm production
decr. testicular size
Gynecomastia
Virilization in females
Hepatotoxic
Aggressive behavior
Effects of Virilisation in females
Hyperandrogenism
Temporal balding
male body physique
muscle building
incr. clitoris size
Hirsutism
Admin of Testosterone derivatives
Implant as it undergoes extensive 1st pass metabolism when taken orally=inactivation
CIs of Testosterone impkant
Breast, prostate neoplasm
Effects of Testosterone implant
May cause premature closing of epiphyses if administered early in puberty
Stimulates endogenous EPO production
DIs of Testosterone Implant
Incr. effects of warfarin:=incr. bleeding
May decr blood glycose levels
Which are the Testosterone Esters
Testosterone Undecanoate: T deficiency
Enanthate: incr. muscle mass
Cypionate: T. deficiency
Uses of Testosterone Esters
improve sexual performance
libido
What is Methyltestosterone
17-a-alkyl derivative of T with an oral bioavailability>T.
*its an Ester of T
Uses of Methytestosterone
treats men with T. deficiency
Cautions with Methytestosterone
Prolonged periods of se
Hepatotoxic
What is Mesterolone
dihydroT. derivative that is not metabolised to estrogen
Has an oral bioavailability>T
Indications of Mesterolone
Patients with hepatic disease and those woth estrogenic synptoms of other testosterone
What is Nandrolone
An anabolic effec with hight anabolic effects and lower androgneic effects
Indications of Nandrolone
Treatment of Osteoporosis and Aplastic anemia
Effects of Nandrolone
incr. muscle growth
incr. appetite
incr. RBC production
incr. bone density
Larger doses of Nandrolone leads to
Gynecomastia
decr. libido