Gel for low testosterone

AndroGel ® (testosterone gel) 1% and % are controlled substances, available by prescription, used to treat adult males who have low or no testosterone due to certain medical conditions. It is not known if AndroGel is safe or effective to treat men who have low testosterone due to aging . It is not known if AndroGel is safe or effective in children younger than 18 years old . Testosterone products that are applied to the skin may have different doses, strengths, or application instructions that may lead to different levels of testosterone in your body .

Testosterone (T) therapy for hypogonadal men should correct the clinical abnormalities of T deficiency, including improvement of sexual function, increase in muscle mass and strength, and decrease in fat mass, with minimal adverse effects. We have shown that administration of a new transdermal T gel formulation to hypogonadal men provided dose proportional increases in serum T levels to the normal adult male range. We now report the effects of 180 days of treatment with this 1% T gel preparation (50 or 100 mg/day, contained in 5 or 10 g gel, respectively) compared to those of a permeation-enhanced T patch (5 mg/day) on defined efficacy parameters in 227 hypogonadal men. In the T gel groups, the T dose was adjusted up or down to 75 mg/day (contained in g gel) on day 90 if serum T concentrations were below or above the normal male range. No dose adjustment was made with the T patch group. Sexual function and mood changes were monitored by questionnaire, body composition was determined by dual energy x-ray absorptiometry, and muscle strength was measured by the one repetitive maximum technique on bench and leg press exercises. Sexual function and mood improved maximally on day 30 of treatment, without differences across groups, and showed no further improvement with continuation of treatment. Mean muscle strength in the leg press exercise increased by 11 to 13 kg in all treatment groups by 90 days and did not improve further at 180 days of treatment. Moderate increases were also observed in arm/chest muscle strength. At 90 days of treatment, lean body mass increased more in the 100 mg/day T gel group ( +/- kg; P = ) than in the 50 mg/day T gel ( +/- kg) and T patch groups ( +/- kg). Fat mass and percent fat were not significantly decreased in the T patch group, but showed decreases in the T gel groups (50 mg/day, - +/- kg; 100 mg/day, - +/- kg). The increase in lean mass and the decrease in fat mass were correlated with the changes in average serum T levels attained after transdermal T replacement. These beneficial effects of T replacement were accompanied by the anticipated increases in hematocrit and hemoglobin but without significant changes in the lipid profile. The increase in mean serum prostate-specific antigen levels (within the normal range) was correlated with serum levels of T. The greatest increases were noted in the 100 mg/day T gel group. Skin irritation was reported in % of subjects treated with T gel and in 66% of subjects in the permeation-enhanced T patch group. We conclude that T gel replacement improved sexual function and mood, increased lean mass and muscle strength (principally in the legs), and decreased fat mass in hypogonadal men with less skin irritation and discontinuation compared with the recommended dose of the permeation-enhanced T patch.

Androgel is a gel containing testosterone. It is administered through the skin for treatment of low testosterone levels. It belongs to a class of drugs called androgens. Other testosterone replacement products include Androderm , Axiron , Testim, and Fortesta. Testosterone is the major male sex hormone responsible for the normal growth and development of the male sex organs and secondary sex characteristics. These effects include development of the prostate, penis, and scrotum; distribution of facial, pubic, chest and axillary hair; development of a deep voice and alterations in muscle mass and fat distribution. Low production of testosterone leads to erectile dysfunction , reduced sexual desire, fatigue and loss of energy, depression , regression of secondary sexual characteristics, and weakening of bones ( osteoporosis ). Androgel and other testosterone replacement products supplement or replace natural production of testosterone and reverse symptoms of low testosterone levels. The FDA approved Androgel in February 2000.

Gel for low testosterone

gel for low testosterone


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