Methyltestosterone (Methitest)

Trade Name : METHITEST

Amneal Pharmaceuticals of New York LLC

TABLET

Strength 10 mg/1

METHYLTESTOSTERONE Androgen [EPC],Androgen Receptor Agonists [MoA],Androstanes [CS]

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GNH India is WHO GDP and ISO 9001 2015 Certified Pharmaceutical Wholesaler/ Supplier/ Exporters/ Importer from India of Methyltestosterone (Methitest) which is also known as METHITEST and Manufactured by Amneal Pharmaceuticals of New York LLC. It is available in strength of 10 mg/1 per ml. Read more

Methyltestosterone (Methitest) is supplied for Tenders/ Emergency imports/ Un - licensed, Specials, Orphan drug/ Name patient line/ RLD supplies/ Reference listed drugs/ Comparator Drug/ Bio-Similar/ Innovator samples For Clinical trials.  Click to know price.     Read less

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We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

We deliver your medicines through a validated cold chain shipment process. This process is used as these medicines need to manufactured, transported and stored at very specific temperatures, utilizing thermal and refrigerated packaging methods.

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  • No data
  • METHITESTu2122 (methyltestosterone) tablets, USP contain methyltestosterone USP, a synthetic androgen. Androgens are steroids that develop and maintain primary and secondary male sex characteristics. METHITESTu2122 (methyltestosterone) tablets, USP are to be taken orally.
  • Androgens are derivatives of cyclopentanoperhydrophenanthrena. Endogenous androgens are C-19 steroids with a side chain at C-17, and with two angular methyl groups. Testosterone is the primary endogenous androgen. In their active form, all drugs in the class have a 17-beta-hydroxy group. 17-alpha alkylation (methyltestosterone) increases the pharmacologic activity per unit weight compared to testosterone when given orally.
  • Methyltestosterone is the 17u03b1-methyl derivative of testosterone, the true testicular hormone. Chemically, methyltestosterone is 17b-hydroxy-17-methylandrost-4-en-3-one, with the empirical formula CHO, a molecular weight of 302.5, and the following structural formula:
  • CHO u00a0u00a0u00a0u00a0u00a0u00a0u00a0 M.W. 302.46 (CAS-58-18-4)17 u03b2-Hydroxy-17-methylandrost-4-en-3-one
  • Methyltestosterone, USP is a white to creamy-white, odorless, slightly hydroscopic powder. It is practically insoluble in water, and is soluble in alcohol and other organic solvents.
  • METHITESTu2122 (methyltestosterone) tablets, USP contain methyltestosterone, USP and acacia, lactose monohydrate, confectioneru2019s sugar, corn starch, powdered cellulose, sodium lauryl sulfate, magnesium stearate, pregelatinized starch, and guar gum.
  • Endogenous androgens are responsible for the normal growth and development of the male sex organs and for maintenance of secondary sex characteristics. These effects include the growth and maturation of prostate, seminal vesicles, penis and scrotum; the development of male hair distribution, such as beard, pubic, chest, and axillary hair; laryngeal enlargement, vocal cord thickening; alterations in body musculature and fat distribution. Drugs in this class also cause retention of nitrogen, sodium, potassium, phosphorus, and decreased urinary excretion of calcium. Androgens have been reported to increase protein anabolism and decrease protein catabolism. Nitrogen balance is improved only when there is sufficient intake of calories and protein.
  • Androgens are responsible for the growth spurt of adolescence and for the eventual termination of linear growth which is brought about by fusion of the epiphyseal growth centers. In children, exogenous androgens accelerate linear growth rates, but may cause a disproportionate advancement in bone maturation. Use over long periods may result in fusion of the epiphyseal growth centers and termination of growth process. Androgens have been reported to stimulate the production of red blood cells by enhancing the production of erythropoietic stimulating factor.
  • During exogenous administration of androgens, endogenous testosterone release is inhibited through feedback inhibition of pituitary luteinizing hormone (LH). With large doses of exogenous androgens, spermatogenesis may also be suppressed through feedback inhibition of pituitary follicle stimulating hormone (FSH). There is a lack of substantial evidence that androgens are effective in fractures, surgery, convalescence, and functional uterine bleeding.
  • Arrayn- Pharmacokinetics
  • Testosterone given orally is metabolized by the gut and 44% is cleared by the liver in the first pass. Oral doses as high as 400 mg per day are needed to achieve clinically effective blood levels for full replacement therapy. The synthetic androgen (methyltestosterone) is less extensively metabolized by the liver and has a longer half-life. It is more suitable than testosterone for oral administration.
  • Testosterone in plasma is 98% bound to a specific testosterone-estradiol binding globulin, and about 1% is free. Generally, the amount of this sex-hormone binding globulin in the plasma will determine the distribution of testosterone between free and bound forms, and the free testosterone concentration will determine its half-life. About 90% of a dose of testosterone is excreted in the urine as glucuronic and sulfuric acid conjugates of testosterone and its metabolites; about 6% of a dose is excreted in the feces, mostly in the unconjugated form. Inactivation of testosterone occurs primarily in the liver. Testosterone is metabolized to various 17-keto steroids through two different pathways. As reported in the literature, the half-life of testosterone varies considerably, ranging from 10 to 100 minutes.
  • In many tissues the activity of testosterone appears to depend on reduction to dihydrotestosterone, which binds to cytosol receptor proteins. The steroid-receptor complex is transported to the nucleus where it initiates transcription events and cellular changes related to androgen action.
  • 1. Males
  • Androgens are indicated for replacement therapy in conditions associated with a deficiency or absence of endogenous testosterone:
  • Safety and efficacy of methyltestosterone in men with u201cage-related hypogonadismu201d (also referred to as u201clate-onset hypogonadismu201d) have not been established.
  • 2. Females
  • Androgens may be used secondarily in women with advancing inoperable metastatic (skeletal) mammary cancer who are 1 to 5 years postmenopausal. Primary goals of therapy in these women include ablation of the ovaries. Other methods of counteracting estrogen activity are adrenalectomy, hypophysectomy, and/or antiestrogen therapy. This treatment has also been used in premenopausal women with breast cancer who have benefitted from oophorectomy and are considered to have a hormone-responsive tumor. Judgment concerning androgen therapy should be made by an oncologist with expertise in this field.n
  • METHITESTu2122 (methyltestosterone) tablets are contraindicated in men with carcinomas of the breast or with known or suspected carcinomas of the prostate, and in women who are or may become pregnant. When administered to pregnant women, androgens cause virilization of the external genitalia of the female fetus. This virilization includes clitoromegaly, abnormal vaginal development, and fusion of genital folds to form a scrotal-like structure. The degree of masculinization is related to the amount of drug given and age of the fetus, and is most likely to occur in the female fetus when the drugs are given in the first trimester. If the patient becomes pregnant while taking these drugs, she should be apprised of the potential hazard to the fetus.
  • In patients with breast cancer, androgen therapy may cause hypercalcemia by stimulating osteolysis. In this case, the drug should be discontinued.
  • Prolonged use of high doses of androgens has been associated with the development of peliosis hepatis and hepatic neoplasms including hepatocellular carcinoma (see ). Peliosis hepatis can be a life-threatening or fatal complication.
  • Cholestatic hepatitis and jaundice occur with 17-alpha-alkylandrogens (such as methyltestosterone) at a relatively low dose. If cholestatic hepatitis with jaundice appears or if liver function tests become abnormal, the androgen should be discontinued and the etiology should be determined. Drug-induced jaundice is reversible when the medication is discontinued.
  • Geriatric patients treated with androgens may be at an increased risk of developing prostatic hypertrophy and prostatic carcinoma although conclusive evidence to support this concept is lacking.
  • There have been postmarketing reports of venous thromboembolic events, including deep vein thrombosis (DVT) and pulmonary embolism (PE), in patients using testosterone products, such as methyltestosterone. Evaluate patients who report symptoms of pain, edema, warmth and erythema in the lower extremity for DVT and those who present with acute shortness of breath for PE. If a venous thromboembolic event is suspected, discontinue treatment with methyltestosterone and initiate appropriate workup and management.
  • Long term clinical safety trials have not been conducted to assess the cardiovascular outcomes of testosterone replacement therapy in men. To date, epidemiologic studies and randomized controlled trials have been inconclusive for determining the risk of major adverse cardiovascular events (MACE), such as non-fatal myocardial infarction, non-fatal stroke, and cardiovascular death, with the use of testosterone compared to non-use. Some studies, but not all, have reported an increased risk of MACE in association with use of testosterone replacement therapy in men. Patients should be informed of this possible risk when deciding whether to use or to continue to use methyltestosterone.
  • Testosterone has been subject to abuse, typically at doses higher than recommended for the approved indication and in combination with other anabolic androgenic steroids. Anabolic androgenic steroid abuse can lead to serious cardiovascular and psychiatric adverse reactions (see and).
  • If testosterone abuse is suspected, check serum testosterone concentrations to ensure they are within therapeutic range. However, testosterone levels may be in the normal or subnormal range in men abusing synthetic testosterone derivatives. Counsel patients concerning the serious adverse reactions associated with abuse of testosterone and anabolic androgenic steroids. Conversely, consider the possibility of testosterone and anabolic androgenic steroid abuse in suspected patients who present with serious cardiovascular or psychiatric adverse events.
  • Edema with or without congestive heart failure may be a serious complication in patients with pre-existing cardiac, renal or hepatic disease. In addition to discontinuation of the drug, diuretic therapy may be required.
  • Gynecomastia frequently develops and occasionally persists in patients being treated for hypogonadism.
  • Androgen therapy should be used cautiously in healthy males with delayed puberty. The effect on bone maturation should be monitored by assessing bone age of the wrist and hand every 6 months. In children, androgen treatment may accelerate bone maturation without producing compensatory gain in linear growth. This adverse effect may result in compromised adult stature. The younger the child the greater the risk of compromising final mature height.
  • This drug has not been shown to be safe and effective for the enhancement of athletic performance. Because of the potential risk of serious adverse health effects, this drug should not be used for such purpose.
  • General
  • Woman should be observed for signs of virilization (deepening of the voice, hirsutism, acne, clitoromegaly, and menstrual irregularities). Discontinuation of drug therapy at the time of evidence of mild virilism is necessary to prevent irreversible virilization. Such virilization is usual following androgen use at high doses. The patient and physician may decide that some virilization will be tolerated during treatment for breast carcinoma.
  • Priapism or excessive sexual stimulation may develop. Males, especially the elderly, may become overstimulated. In treating males for symptoms of climacteric, avoid stimulation to the point of increasing the nervous, mental, and physical activities beyond the patientu2019s cardiovascular capacity.
  • Oligospermia and reduced ejaculatory volume may occur after prolonged administration or excessive dosage.
  • Information for the Patients
  • The physician should instruct patients to report any of the following side effects of androgens:
  • Adult or Adolescent Males:
  • Women:
  • All Patients:
  • Any male adolescent patient receiving androgens for delayed puberty should have bone development checked every 6 months.
  • Laboratory Tests
  • Drug Interactions
  • 1. Anticoagulants: n- Arrayn- Array
  • Drug/Laboratory Test Interference
  • Androgens may decrease levels of thyroxine-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.
  • Carcinogenesis, Mutagenesis, Impairment of Fertility
  • Animal Data:
  • Human Datan- :
  • Geriatric patients treated with androgens may be at an increased risk of developing prostatic hypertrophy and prostatic carcinoma although conclusive evidence to support this concept is lacking.
  • This compound has not been tested for mutagenic potential. However, as noted above, carcinogenic effects have been attributed to treatment with adrogenic hormones. The potential carcinogenic effects likely occur through a hormonal mechanism rather than by a direct chemical interaction mechanism.
  • Impairment of fertility was not tested directly in animal species. However, as noted below under ADVERSE REACTIONS, oligospermia in males and amenorrhea in females are potential adverse effects of treatment with METHITESTu2122 (methyltestosterone) tablets. Therefore, impairment of fertility is a possible outcome of treatment with METHITESTu2122 (methyltestosterone) tablets.
  • Pregnancy: Teratogenic Effects
  • Pregnancy Category X (see )
  • Nursing Mothers
  • It is not known whether androgens are excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from androgens, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.
  • Pediatric Use
  • Androgen therapy should be used very cautiously in children and only by specialists who are aware of the adverse effects on bone maturation. Skeletal maturation must be monitored every six months by an X-ray of the hand and wrist (see ).
  • Arrayn- Endocrine and Urogenital
  • Female:
  • Male: n- Array
  • Arrayn- Skin and Appendages:
  • Arrayn- Cardiovascular Disorders:
  • Arrayn- Fluid and Electrolyte Disturbances:
  • Arrayn- Array
  • Arrayn- Hematologic:
  • Arrayn- Nervous System:
  • Arrayn- Metabolic:
  • Arrayn- Vascular Disorders:
  • Arrayn- Miscellaneous:
  • To report SUSPECTED ADVERSE REACTIONS, contact Amneal Pharmaceuticals at 1-877-835-5472 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
  • Controlled Substance
  • METHITESTu2122 (methyltestosterone) tablets contain testosterone, a Schedule III controlled substance in the Controlled Substances Act.
  • Abuse
  • Drug abuse is intentional non-therapeutic use of a drug, even once, for its rewarding psychological and physiological effects. Abuse and misuse of testosterone are seen in male and female adults and adolescents. Testosterone, often in combination with other anabolic androgenic steroids (AAS), and not obtained by prescription through a pharmacy, may be abused by athletes and bodybuilders. There have been reports of misuse by men taking higher doses of legally obtained testosterone than prescribed and continuing testosterone despite adverse events or against medical advice.
  • Abuse-Related Adverse Reactions
  • Serious adverse reactions have been reported in individuals who abuse anabolic androgenic steroids and include cardiac arrest, myocardial infarction, hypertrophic cardiomyopathy, congestive heart failure, cerebrovascular accident, hepatotoxicity, and serious psychiatric manifestations, including major depression, mania, paranoia, psychosis, delusions, hallucinations, hostility and aggression.
  • The following adverse reactions have also been reported in men: transient ischemic attacks, convulsions, hypomania, irritability, dyslipidemias, testicular atrophy, subfertility, and infertility.
  • The following additional adverse reactions have been reported in women: hirsutism, virilization, deepening of voice, clitoral enlargement, breast atrophy, male-pattern baldness, and menstrual irregularities.
  • The following adverse reactions have been reported in male and female adolescents: premature closure of bony epiphyses with termination of growth, and precocious puberty.
  • Because these reactions are reported voluntarily from a population of uncertain size and may include abuse of other agents, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
  • Dependence
  • Behaviors Associated with Addiction
  • Continued abuse of testosterone and other anabolic steroids, leading to addiction is characterized by the following behaviors:
  • Physical dependence is characterized by withdrawal symptoms after abrupt drug discontinuation or a significant dose reduction of a drug. Individuals taking supratherapeutic doses of testosterone may experience withdrawal symptoms lasting for weeks or months which include depressed mood, major depression, fatigue, craving, restlessness, irritability, anorexia, insomnia, decreased libido and hypogonadotropic hypodgonadism.
  • Drug dependence in individuals using approved doses of testosterone for approved indications has not been documented.
  • Overdose of medication may be reflected in the occurrence of the signs and symptoms associated with testosterone-anabolic drugs. Nausea and appearance of the early manifestations of edema should be looked for. However, there has been no report of acute overdosage with androgens.
  • Prior to initiating METHITESTu2122 (methyltestosterone) tablets, confirm the diagnosis of hypogonadism by ensuring that serum testosterone concentrations have been measured in the morning on at least two separate days and that these serum testosterone concentrations are below the normal range.
  • Dosage must be strictly individualized. The suggested dosage for androgens varies depending on the age, sex, and diagnosis of the individual patient. Adjustments and duration of dosage will depend upon the patientu2019s response and the appearance of adverse reactions.
  • Males:
  • Various dosage regimens have been used to induce pubertal changes in hypogonadel males: some experts have advocated lower dosages initially, gradually increasing the dose as puberty progresses, with or without a decrease to maintenance levels. Other experts emphasize that higher dosages are needed to induce pubertal changes and lower dosages can be used for maintenance after puberty. The chronological and skeletal ages must be taken into consideration, both in determining the initial dose and in adjusting the dose.
  • Dosages used in delayed puberty generally are in the lower ranges of those given above, and are for limited duration, for example, 4 to 6 months.
  • Females:
  • Guideline dosages of androgens for use in the palliative treatment of women with metastatic breast cancer are 50 mg to 200 mg daily.
  • METHITESTu2122 (methyltestosterone) Tablets USP, : Each compressed, single-scored, round, white tablet contains 10 mg of methyltestosterone USP, for oral use. Each tablet is debossed with u201c7037u201d on one side, and scored on the other side.They are available as:
  • Bottles of 100:u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0 u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0u00a0 NDC 0115-7037-01
  • Store at 20u00b0 to 25u00b0C (68u00b0 to 77u00b0F); excursions permitted between 15u00b0 to 30u00b0C (59u00b0 to 86u00b0F) [see USP Controlled Room Temperature]. n
  • This package is not for household dispensing. Dispense in a tight, light-resistant container as defined in the USP, with a child-resistant closure, as required.
  • Rx Only
  • Distributed by:n Bridgewater, NJ 08807
  • Rev. 10-2018-00
  • No data

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