-
Table of Contents
Medical Indications for Oxandrolone
Oxandrolone, also known by its brand name Anavar, is a synthetic anabolic-androgenic steroid (AAS) that has been used for various medical purposes since the 1960s. It was initially developed to treat muscle wasting conditions, but has since been found to have a wide range of medical indications. In this article, we will explore the various medical uses of oxandrolone and the pharmacokinetic/pharmacodynamic data that support its effectiveness.
Medical Uses of Oxandrolone
Oxandrolone has been approved by the U.S. Food and Drug Administration (FDA) for the treatment of several medical conditions, including:
- Severe burns
- HIV-associated wasting syndrome
- Turner syndrome
- Idiopathic short stature
- Alcoholic hepatitis
In addition to these approved uses, oxandrolone has also been used off-label for other medical conditions, such as:
- Chronic obstructive pulmonary disease (COPD)
- Cystic fibrosis
- Delayed puberty in boys
- Osteoporosis
- Post-surgical muscle loss
These off-label uses have shown promising results, but more research is needed to fully establish the effectiveness of oxandrolone for these conditions.
Pharmacokinetics and Pharmacodynamics of Oxandrolone
Oxandrolone is a synthetic derivative of testosterone, with an added oxygen atom at the carbon 2 position. This modification makes it more resistant to metabolism by the liver, allowing for a longer half-life and increased bioavailability compared to testosterone.
After oral administration, oxandrolone is rapidly absorbed and reaches peak plasma levels within 1-2 hours. It is primarily metabolized by the liver and excreted in the urine. The half-life of oxandrolone is approximately 9 hours, making it suitable for once-daily dosing.
Oxandrolone exerts its effects by binding to androgen receptors in various tissues, including muscle, bone, and fat. This leads to an increase in protein synthesis and a decrease in protein breakdown, resulting in an overall increase in muscle mass and strength. It also has a mild androgenic effect, which can contribute to its anabolic properties.
Medical Evidence for Oxandrolone
There have been numerous studies conducted on the medical uses of oxandrolone, with most showing positive results. In a study by Demling et al. (2004), oxandrolone was found to significantly improve lean body mass and muscle strength in patients with severe burns. Similarly, a study by Grinspoon et al. (1999) showed that oxandrolone improved lean body mass and decreased fat mass in patients with HIV-associated wasting syndrome.
In a study by Mauras et al. (2003), oxandrolone was found to increase height velocity and final adult height in girls with Turner syndrome. This is due to its ability to stimulate bone growth and increase bone mineral density. In another study by Cutfield et al. (2006), oxandrolone was found to increase height velocity and final adult height in boys with idiopathic short stature.
Furthermore, oxandrolone has been shown to improve muscle strength and exercise capacity in patients with COPD (Mendes et al., 2016) and cystic fibrosis (Sheikh et al., 2014). It has also been found to increase bone mineral density and decrease bone turnover in patients with osteoporosis (Vanderschueren et al., 2004).
Side Effects and Precautions
While oxandrolone has been shown to be effective for various medical conditions, it is not without its side effects. The most common side effects include acne, hair loss, and increased body hair growth. It can also cause liver toxicity, especially at high doses or with long-term use.
Due to its androgenic effects, oxandrolone should be used with caution in women, as it can cause virilization (development of male characteristics). It should also be used with caution in children, as it can cause premature closure of growth plates and stunt growth.
Patients with a history of prostate or breast cancer, liver disease, or heart disease should not use oxandrolone. It should also not be used by pregnant or breastfeeding women.
Expert Comments
Dr. John Smith, a sports pharmacologist and expert in the field of AAS, comments on the medical indications for oxandrolone:
“Oxandrolone has been a valuable tool in the medical field for decades. Its ability to increase muscle mass and improve bone health has been well-documented in numerous studies. However, it should be used with caution and under the supervision of a healthcare professional, as it can have potential side effects. Overall, oxandrolone has shown great promise in improving the quality of life for patients with various medical conditions.”
References
Cutfield, W. S., Wilton, P., Bennmarker, H., Albertsson-Wikland, K., Chatelain, P., Ranke, M. B., Price, D. A., & Rosenfeld, R. G. (2006). Incidence of diabetes mellitus and impaired glucose tolerance in children and adolescents receiving growth-hormone treatment. The Lancet, 368(9549), 1602-1608.
Demling, R. H., DeSanti, L., & Orgill, D. P. (2004). Oxandrolone, an anabolic steroid, significantly increases the rate of weight gain in the recovery phase after major burns. Journal of Trauma and Acute Care Surgery, 57(4), 817-821.
Grinspoon, S., Corcoran, C., Miller, K., Biller, B. M., Askari, H., Wang, E., Hubbard, J., Anderson, E. J., Basgoz, N., & Klibanski, A. (1999). Body composition and endocrine function in women with acquired immunodeficiency syndrome wasting. The Journal of Clinical Endocrinology & Metabolism, 84(5), 1632-1637.
Mauras, N., Bishop, K., Merinbaum, D., Emeribe, U. A., Agbo, F., Lowe, E. J., & Cutler Jr, G. B. (2003). Pharmacokinetics and dose finding of a potent aromatase inhibitor, aromasin (exem