A potent androgenic steroid and major product secreted by the leydig cells of the testis. Its production is stimulated by luteinizing hormone from the pituitary gland. In turn, testosterone exerts feedback control of the pituitary LH and FSH secretion. Depending on the tissues, testosterone can be further converted to dihydrotestosterone or estradiol. ..

Androgel - Pharmacology:

The effects of testosterone in humans and other vertebrates occur by way of two main mechanisms: by activation of the androgen receptor (directly or as DHT), and by conversion to estradiol and activation of certain estrogen receptors. Free testosterone (T) is transported into the cytoplasm of target tissue cells, where it can bind to the androgen receptor, or can be reduced to 5α-dihydrotestosterone (DHT) by the cytoplasmic enzyme 5α-reductase. DHT binds to the same androgen receptor even more strongly than T, so that its androgenic potency is about 2.5 times that of T. The T-receptor or DHT-receptor complex undergoes a structural change that allows it to move into the cell nucleus and bind directly to specific nucleotide sequences of the chromosomal DNA. The areas of binding are called hormone response elements (HREs), and influence transcriptional activity of certain genes, producing the androgen effects.

Androgel mini report

Androgel ANDA
ANDA - A product marketed under an approved Abbreviated New Drug Application
Androgel NDA
NDA - A product marketed under an approved New Drug Application
Androgel global name
Androgel global name
Start - Stop data
Start - Stop data
not occurred

Androgel for patients

AndroGel (testosterone gel) is a clear, colorless gel medicine that delivers testosterone into your body through your skin. Once AndroGel is absorbed through your skin, it enters your bloodstream and helps your body reach normal testosterone levels. The type of testosterone delivered by AndroGel is the same as the testosterone produced in your body.

  • AndroGel should not be applied to the scrotum.
  • AndroGel should be applied once daily to clean dry skin.
  • After application of AndroGel, it is currently unknown for how long showering or swimming should be delayed. For optimal absorption of testosterone, it appears reasonable to wait at least 5-6 hours after application prior to showering or swimming. Nevertheless, showering or swimming after just 1 hour should have a minimal effect on the amount of AndroGel absorbed if done very infrequently.
  • Since alcohol based gels are flammable, avoid fire, flame or smoking until the gel has dried.

Androgel Interactions

General Interactions

Oxyphenbutazone: Concurrent administration of oxyphenbutazone and androgens may result in elevated serum levels of oxyphenbutazone.

Insulin: In diabetic patients, the metabolic effects of androgens may decrease blood glucose and, therefore, insulin requirements.

Propranolol: In a published pharmacokinetic study of an injectable testosterone product, administration of testosterone cypionate led to an increased clearance of propranolol in the majority of men tested.

Corticosteroids: The concurrent administration of testosterone with ACTH or corticosteroids may enhance edema formation; thus, these drugs should be administered cautiously, particularly in patients with cardiac or hepatic disease.

Drug/Laboratory Test Interactions

Androgens may decrease levels of thyroxin-binding globulin, resulting in decreased total T4 serum levels and increased resin uptake of T3 and T4. Free thyroid hormone levels remain unchanged, however, and there is no clinical evidence of thyroid dysfunction.

Androgel Contraindications

Androgens are contraindicated in men with carcinoma of the breast or known or suspected carcinoma of the prostate.

AndroGel® is not indicated for use in women, has not been evaluated in women, and must not be used in women.

Pregnant women should avoid skin contact with AndroGel® application sites in men. Androgel may cause fetal harm. In the event that unwashed or unclothed skin to which AndroGel® has been applied does come in direct contact with the skin of a pregnant woman, the general area of contact on the woman should be washed with soap and water as soon as possible. In vitro studies show that residual testosterone is removed from the skin surface by washing with soap and water.

AndroGel® should not be used in patients with known hypersensitivity to any of its ingredients, including testosterone USP that is chemically synthesized from soy.

Brand Names containing Testosterone

Androgel tags categories:

Generic name, Overdose, Half Life Androgel, Food Interactions, Chemical, etc..

Androgel see also

Chemical structure:
O O H H H H H H H H H H H H H H H H H H H H H H H H H H H H C19H28O2 2D chemical structure C19H28O2 SVG | 2D structure Testosterone | Delta1-dihydrotestosterone | Androstanedione | 3-Beta-Hydroxy-5-Androsten-17-One | 5alpha-Androstan-3,17-Dione | chemical names, chemical properties, classification C19H28O2