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Oxandrolone
Overview
What is Oxandrolone?
Oxandrolone oral tablets contain 2.5 mg or 10 mg of the anabolic steroid oxandrolone. Oxandrolone is 17β-hydroxy-17α-methyl-2-oxa-5α-androstan-3-one with the following structural formula:
Molecular Formula: C
H
O
Molecular Weight: 306.44
Inactive ingredients include: corn starch, lactose monohydrate, magnesium stearate, and hypromellose. USP Dissolution Test Pending.
What does Oxandrolone look like?
What are the available doses of Oxandrolone?
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What should I talk to my health care provider before I take Oxandrolone?
Sorry No records found
How should I use Oxandrolone?
Oxandrolone is indicated as adjunctive therapy to offset the protein catabolism associated with prolonged administration of corticosteroids, and for the relief of the bone pain frequently accompanying osteoporosis (see
).
Therapy with anabolic steroids is adjunctive to and not a replacement for conventional therapy. The duration of therapy with oxandrolone will depend on the response of the patient and the possible appearance of adverse reactions. Therapy should be intermittent.
What interacts with Oxandrolone?
- Known or suspected carcinoma of the prostate or the male breast.
- Carcinoma of the breast in females with hypercalcemia (androgenic anabolic steroids may stimulate osteolytic bone resorption).
- Pregnancy, because of possible masculinization of the fetus. Oxandrolone has been shown to cause embryotoxicity, fetotoxicity, infertility, and masculinization of female animal offspring when given in doses 9 times the human dose.
- Nephrosis, the nephrotic phase of nephritis.
- Hypercalcemia.
What are the warnings of Oxandrolone?
Cholestatic hepatitis and jaundice may occur with 17-alpha-alkylated androgens at a relatively low dose. If cholestatic hepatitis with jaundice appears or if liver function tests become abnormal, oxandrolone should be discontinued and the etiology should be determined. Drug-induced jaundice is reversible when the medication is discontinued.
In patients with breast cancer, anabolic steroid therapy may cause hypercalcemia by stimulating osteolysis. Oxandrolone therapy should be discontinued if hypercalcemia occurs.
Edema with or without congestive heart failure may be a serious complication in patients with pre-existing cardiac, renal, or hepatic disease. Concomitant administration of adrenal cortical steroid or ACTH may increase the edema.
In children, androgen therapy may accelerate bone maturation without producing compensatory gain in linear growth. This adverse effect results in compromised adult height. The younger the child, the greater the risk of compromising final mature height. The effect on bone maturation should be monitored by assessing bone age of the left wrist and hand every 6 months (see
).
Geriatric patients treated with androgenic anabolic steroids may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma. ANABOLIC STEROIDS HAVE NOT BEEN SHOWN TO ENHANCE ATHLETIC ABILITY.
What are the precautions of Oxandrolone?
Concurrent dosing of oxandrolone and warfarin may result in unexpectedly large increases in the International Normalized Ratio (INR) or prothrombin time (PT). When oxandrolone is prescribed to patients being treated with warfarin, doses of warfarin may need to be decreased significantly to maintain the desirable INR level and diminish the risk of potentially serious bleeding (
Array
General
Women should be observed for signs of virilization (deepening of the voice, hirsutism, acne, clitoromegaly). Discontinuation of drug therapy at the time of evidence of mild virilism is necessary to prevent irreversible virilization. Some virilizing changes in women are irreversible even after prompt discontinuance of therapy and are not prevented by concomitant use of estrogens. Menstrual irregularities may also occur.
Anabolic steroids may cause suppression of clotting factors II, V, VII, and X, and an increase in prothrombin time.
Information for Patients
The physician should instruct patients to report immediately any use of warfarin and any bleeding.
The physician should instruct patients to report any of the following side effects of androgens:
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Too frequent or persistent erections of the penis, appearance or aggravation of acne.
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Hoarseness, acne, changes in menstrual periods, or more facial hair.
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Nausea, vomiting, changes in skin color, or ankle swelling.
Geriatric Use:
Certain geriatric use information is protected by marketing exclusivity.
Laboratory Tests
Women with disseminated breast carcinoma should have frequent determination of urine and serum calcium levels during the course of therapy (see
).
Because of the hepatotoxicity associated with the use of 17-alpha-alkylated androgens, liver function tests should be obtained periodically.
Periodic (every 6 months) x-ray examinations of bone age should be made during treatment of children to determine the rate of bone maturation and the effects of androgen therapy on the epiphyseal centers.
Androgenic anabolic steroids have been reported to increase low-density lipoproteins and decrease high-density lipoproteins. Therefore, caution is required when administering these agents to patients with a history of cardiovascular disease or who are at risk for cardiovascular disease. Serum determination of lipid levels should be performed periodically and therapy adjusted accordingly.
Hemoglobin and hematocrit should be checked periodically for polycythemia in patients who are receiving high doses of anabolic steroids.
Drug Interactions
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Anabolic steroids may increase sensitivity to oral anticoagulants. Dosage of the anticoagulant may have to be decreased in order to maintain desired prothrombin time. Patients receiving oral anticoagulant therapy require close monitoring, especially when anabolic steroids are started or stopped.
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A multidose study of oxandrolone, given as 5 or 10 mg BID in 15 healthy subjects concurrently treated with warfarin, resulted in a mean increase in S-warfarin half-life from 26 to 48 hours and AUC from 4.55 to 12.08 ng•hr/mL; similar increases in R-warfarin half-life and AUC were also detected. Microscopic hematuria (9/15) and gingival bleeding (1/15) were also observed. A 5.5-fold decrease in the mean warfarin dose from 6.13 mg/day to 1.13 mg/day (approximately 80-85% reduction of warfarin dose), was necessary to maintain a target INR of 1.5. When oxandrolone therapy is initiated in a patient already receiving treatment with warfarin, the INR or prothrombin time (PT) should be monitored closely and the dose of warfarin adjusted as necessary until a stable target INR or PT has been achieved.
Furthermore, in patients receiving both drugs, careful monitoring of the INR or PT, and adjustment of the warfarin dosage if indicated are recommended when the oxandrolone dose is changed or discontinued. Patients should be closely monitored for signs and symptoms of occult bleeding.
Array
Oxandrolone may inhibit the metabolism of oral hypoglycemic agents.
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In patients with edema, concomitant administration with adrenal cortical steroids or ACTH may increase the edema.
Drug/Laboratory Test Interactions
Anabolic steroids may decrease levels of thyroxine-binding globulin, resulting in decreased total T
serum levels and increased resin uptake of T
and T
. Free thyroid hormone levels remain unchanged. In addition, a decrease in PBI and radioactive iodine uptake may occur.
Carcinogenesis, Mutagenesis, Impairment of Fertility
Array
Oxandrolone has not been tested in laboratory animals for carcinogenic or mutagenic effects. In 2-year chronic oral rat studies, a dose-related reduction of spermatogenesis and decreased organ weights (testes, prostate, seminal vesicles, ovaries, uterus, adrenals, and pituitary) were shown.
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Liver cell tumors have been reported in patients receiving long-term therapy with androgenic anabolic steroids in high doses (see
). Withdrawal of the drugs did not lead to regression of the tumors in all cases.
Geriatric patients treated with androgenic anabolic steroids may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma.
Pregnancy
Teratogenic effects-Pregnancy Category X (see
).
Nursing Mothers
It is not known whether anabolic steroids are excreted in human milk. Because of the potential of serious adverse reactions in nursing infants from oxandrolone, 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
Anabolic agents may accelerate epiphyseal maturation more rapidly than linear growth in children and the effect may continue for 6 months after the drug has been stopped. Therefore, therapy should be monitored by x-ray studies at 6-month intervals in order to avoid the risk of compromising adult height. Androgenic anabolic steroid therapy should be used very cautiously in children and only by specialists who are aware of the effects on bone maturation (see
).
What are the side effects of Oxandrolone?
Patients with moderate to severe COPD or COPD patients who are unresponsive to bronchodilators should be monitored closely for COPD exacerbation and fluid retention.
The following adverse reactions have been associated with use of anabolic steroids:
Hepatic
Cholestatic jaundice with, rarely, hepatic necrosis and death. Hepatocellular neoplasms and peliosis hepatis with long-term therapy (see
). Reversible changes in liver function tests also occur including increased bromsulfophthalein (BSP) retention, changes in alkaline phosphatase and increases in serum bilirubin, aspartate aminotransferase (AST, SGOT) and alanine aminotransferase (ALT, SGPT).
In Males
Array
Phallic enlargement and increased frequency or persistence of erections.
Array
Inhibition of testicular function, testicular atrophy and oligospermia, impotence, chronic priapism, epididymitis, and bladder irritability.
In Females
Clitoral enlargement, menstrual irregularities.
CNS
Habituation, excitation, insomnia, depression, and changes in libido.
Hematologic
Bleeding in patients on concomitant anticoagulant therapy.
Breast
Gynecomastia.
Larynx
Deepening of the voice in females.
Hair
Hirsutism and male pattern baldness in females.
Skin
Acne (especially in females and prepubertal males).
Skeletal
Premature closure of epiphyses in children (see
).
Fluid and Electrolytes
Edema, retention of serum electrolytes (sodium chloride, potassium, phosphate, calcium).
Metabolic/Endocrine
Decreased glucose tolerance (see
), increased creatinine excretion, increased serum levels of creatinine phosphokinase (CPK). Masculinization of the fetus. Inhibition of gonadotropin secretion.
What should I look out for while using Oxandrolone?
Cholestatic hepatitis and jaundice may occur with 17-alpha-alkylated androgens at a relatively low dose. If cholestatic hepatitis with jaundice appears or if liver function tests become abnormal, oxandrolone should be discontinued and the etiology should be determined. Drug-induced jaundice is reversible when the medication is discontinued.
In patients with breast cancer, anabolic steroid therapy may cause hypercalcemia by stimulating osteolysis. Oxandrolone therapy should be discontinued if hypercalcemia occurs.
Edema with or without congestive heart failure may be a serious complication in patients with pre-existing cardiac, renal, or hepatic disease. Concomitant administration of adrenal cortical steroid or ACTH may increase the edema.
In children, androgen therapy may accelerate bone maturation without producing compensatory gain in linear growth. This adverse effect results in compromised adult height. The younger the child, the greater the risk of compromising final mature height. The effect on bone maturation should be monitored by assessing bone age of the left wrist and hand every 6 months (see
).
Geriatric patients treated with androgenic anabolic steroids may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma. ANABOLIC STEROIDS HAVE NOT BEEN SHOWN TO ENHANCE ATHLETIC ABILITY.
What might happen if I take too much Oxandrolone?
No symptoms or signs associated with overdosage have been reported. It is possible that sodium and water retention may occur.
The oral LD
of oxandrolone in mice and dogs is greater than 5,000 mg/kg. No specific antidote is known, but gastric lavage may be used.
How should I store and handle Oxandrolone?
Storage and HandlingStore in a dry place at 77°F (25°C); excursions permitted to 59°F to 86°F (15°C to 30°C) [see USP Controlled Room Temperature]. Keep out of the reach of children. Storage and HandlingStore in a dry place at 77°F (25°C); excursions permitted to 59°F to 86°F (15°C to 30°C) [see USP Controlled Room Temperature]. Keep out of the reach of children. Storage and HandlingStore in a dry place at 77°F (25°C); excursions permitted to 59°F to 86°F (15°C to 30°C) [see USP Controlled Room Temperature]. Keep out of the reach of children. Oxandrolone Tablets, USP are supplied as follows:2.5 mg tablets: white, round, biconvex tablets, debossed with “K” and scored on one side and “200” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-424-21 10 mg tablets: white, capsule shaped, biconvex tablets, debossed with “201” on one side and debossed with “K” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-425-21 Store at 20° to 25° C (68° to 77°F) [see USP Controlled Room Temperature].FOR YOUR PROTECTION:Oxandrolone Tablets, USP are supplied as follows:2.5 mg tablets: white, round, biconvex tablets, debossed with “K” and scored on one side and “200” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-424-21 10 mg tablets: white, capsule shaped, biconvex tablets, debossed with “201” on one side and debossed with “K” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-425-21 Store at 20° to 25° C (68° to 77°F) [see USP Controlled Room Temperature].FOR YOUR PROTECTION:Oxandrolone Tablets, USP are supplied as follows:2.5 mg tablets: white, round, biconvex tablets, debossed with “K” and scored on one side and “200” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-424-21 10 mg tablets: white, capsule shaped, biconvex tablets, debossed with “201” on one side and debossed with “K” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-425-21 Store at 20° to 25° C (68° to 77°F) [see USP Controlled Room Temperature].FOR YOUR PROTECTION:Oxandrolone Tablets, USP are supplied as follows:2.5 mg tablets: white, round, biconvex tablets, debossed with “K” and scored on one side and “200” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-424-21 10 mg tablets: white, capsule shaped, biconvex tablets, debossed with “201” on one side and debossed with “K” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-425-21 Store at 20° to 25° C (68° to 77°F) [see USP Controlled Room Temperature].FOR YOUR PROTECTION:Oxandrolone Tablets, USP are supplied as follows:2.5 mg tablets: white, round, biconvex tablets, debossed with “K” and scored on one side and “200” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-424-21 10 mg tablets: white, capsule shaped, biconvex tablets, debossed with “201” on one side and debossed with “K” on the other side. Unit dose packages of 30 (3 x 10) NDC 68084-425-21 Store at 20° to 25° C (68° to 77°F) [see USP Controlled Room Temperature].FOR YOUR PROTECTION:
Clinical Information
Chemical Structure
No Image foundClinical Pharmacology
Anabolic steroids are synthetic derivatives of testosterone. Certain clinical effects and adverse reactions demonstrate the androgenic properties of this class of drugs. Complete dissociation of anabolic and androgenic effects has not been achieved. The actions of anabolic steroids are therefore similar to those of male sex hormones with the possibility of causing serious disturbances of growth and sexual development if given to young children. Anabolic steroids suppress the gonadotropic functions of the pituitary and may exert a direct effect upon the testes.
During exogenous administration of anabolic androgens, endogenous testosterone release is inhibited through inhibition of pituitary luteinizing hormone (LH). At large doses, spermatogenesis may be suppressed through feedback inhibition of pituitary follicle-stimulating hormone (FSH).
Anabolic steroids have been reported to increase low-density lipoproteins and decrease high-density lipoproteins. These levels revert to normal on discontinuation of treatment.
Non-Clinical Toxicology
Cholestatic hepatitis and jaundice may occur with 17-alpha-alkylated androgens at a relatively low dose. If cholestatic hepatitis with jaundice appears or if liver function tests become abnormal, oxandrolone should be discontinued and the etiology should be determined. Drug-induced jaundice is reversible when the medication is discontinued.In patients with breast cancer, anabolic steroid therapy may cause hypercalcemia by stimulating osteolysis. Oxandrolone therapy should be discontinued if hypercalcemia occurs.
Edema with or without congestive heart failure may be a serious complication in patients with pre-existing cardiac, renal, or hepatic disease. Concomitant administration of adrenal cortical steroid or ACTH may increase the edema.
In children, androgen therapy may accelerate bone maturation without producing compensatory gain in linear growth. This adverse effect results in compromised adult height. The younger the child, the greater the risk of compromising final mature height. The effect on bone maturation should be monitored by assessing bone age of the left wrist and hand every 6 months (see ).
Geriatric patients treated with androgenic anabolic steroids may be at an increased risk for the development of prostatic hypertrophy and prostatic carcinoma. ANABOLIC STEROIDS HAVE NOT BEEN SHOWN TO ENHANCE ATHLETIC ABILITY.
Concurrent dosing of oxandrolone and warfarin may result in unexpectedly large increases in the International Normalized Ratio (INR) or prothrombin time (PT). When oxandrolone is prescribed to patients being treated with warfarin, doses of warfarin may need to be decreased significantly to maintain the desirable INR level and diminish the risk of potentially serious bleeding (
Patients with moderate to severe COPD or COPD patients who are unresponsive to bronchodilators should be monitored closely for COPD exacerbation and fluid retention.
The following adverse reactions have been associated with use of anabolic steroids:
Reference
This information is obtained from the National Institute of Health's Standard Packaging Label drug database.
"https://dailymed.nlm.nih.gov/dailymed/"
While we update our database periodically, we cannot guarantee it is always updated to the latest version.
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