androgens and anti androgens Flashcards
androgens indication
primary or sec hypogonadism in males
anti androgen indications
males- bph, prostate cancer, hair loss
females- hirutism and hyperandrogenism like male pattern baldness in pcos
testosterone uses
- development of primary and secondary sexual characteristics
- erythropoiesis
3.anabolic effects- growth spurt in puberty by making the bones longer, closure of the epiphyseal plate in late puberty. - development of broad shoulders and muscular arms and legs.
testosterone route?
subcutaneous implantation, by a transdermal patch, or via buccal administration.
types of synthetic androgens?
the testosterone derivatives and the anabolic steroids.
synthetic androgens divided into
- fluoxymesterone and methyltestosterone, which are given orally
- testosterone esters like testosterone cypionate which are long acting androgens given by intramuscular depot injection.
testosterone derivatives indications
testosterone replacement therapy in hypogonadism in biological males,
primary hypogonadism meaning testicular disease, and in secondary hypogonadism or hypopituitarism meaning pituitary disease
stimulate anabolism as a means of promoting recovery after a burn or injury,
promote weight gain in patients with wasting syndromes, like those with cancer or AIDS.
se of testosterone derivates in females
masculinization in females, which includes
enlargement of the clitoris,
acne, and
hirsutism,
menstrual irregularity
se of testosterone derivates in males
excessive doses inhibit LH release via a negative feedback mechanism which leads to a decrease in intratesticular testosterone and gonadal atrophy.
This inhibition of the pituitary can cause paradoxical feminization, including gynecomastia and infertility.
premature closure of epiphyseal plates, which impairs growth in children.
increase of low density lipoprotein, or LDL, and a decrease of high density lipoprotein, or HDL, which leads to obesity.
anabolic steriods names?
nandrolone and oxandrolone.
clinical indication of anabolic steriods?
treatment of aplastic anemia, , abused by athletes, weight gain in patients of wasting syndrome
se of steriod androgens
cholestatic jaundice
increasing liver enzyme levels, hepatocellular carcinoma
increase the risk of coronary heart disease.
anti androgens consists of
androgen receptor inhibitors, 5α-reductase inhibitors, and inhibitors of testosterone synthesis.
androgen receptor antagonist
flutamide and spironolactone.
flutamide moa
nonsteroidal competitive antagonist of androgen receptors that inhibits the translocation of steroid receptors to the nucleus
flutamide indication
prostate cancer
flutamide se
gynecomastia
hot flashes,
breast tenderness
sexual dysfunction including reduced libido and erectile dysfunction, as well as gastrointestinal disturbances like diarrhea, nausea, and vomiting.
spironolactone moa
acts also as a steroidal antagonist to androgen receptors.
spironolactone indications
hirsutism, pcos, reduce androgenic symptoms like male-pattern baldness in men
spironolactone se
gynecomastia and amenorrhea, which is the absence of ovulation and menses.