Anavar (Oxandrolone)

Oxandrolone is a synthetic DHT derivative with a substitution of the C2 carbon with an oxygen atom (oxo group), which dramatically increases its anabolic potency while reducing androgenic effects. It binds to the androgen receptor with high affinity and has a uniquely strong effect on strength through a mechanism believed to involve enhanced creatine phosphate synthesis and ATP regeneration in muscle tissue. Oxandrolone does not aromatize and cannot be converted to estrogen. It has been shown to directly stimulate lipolysis, particularly in visceral adipose tissue, through increased expression of hormone-sensitive lipase. It also enhances protein synthesis and nitrogen retention, and has demonstrated ability to reduce cortisol levels and SHBG, increasing the anabolic efficacy of co-administered testosterone.

Oxandrolone is rapidly absorbed from the GI tract after oral administration, with peak plasma levels occurring within 1-2 hours. The c17-alpha alkylation allows survival of first-pass hepatic metabolism, resulting in approximately 97% oral bioavailability. The plasma half-life is 9-10 hours, supporting twice-daily dosing for stable levels. Oxandrolone undergoes minimal hepatic transformation (approximately 28% is excreted unchanged in urine), which contributes to its relatively mild hepatotoxicity compared to other c17-aa steroids. The remaining metabolism occurs via oxidation and glucuronide conjugation. Urinary metabolites are detectable for 3-4 weeks after cessation.

• ✓Significant strength gains disproportionate to weight gain (great for weight-class athletes)
• ✓Lean, dry muscle gains with zero water retention
• ✓Minimal androgenic side effects (relatively safe for hair, skin, prostate)
• ✓Does not aromatize to estrogen
• ✓Enhanced fat oxidation (particularly visceral and abdominal fat)
• ✓One of the safest orals for liver health (mild hepatotoxicity compared to other c17-aa orals)
• ✓Suitable for female use at low doses
• ✓Excellent for preserving lean tissue during aggressive caloric deficits

• ⚠Significant lipid panel deterioration (HDL suppression is often the worst side effect)
• ⚠Mild hepatotoxicity (c17-alpha alkylated, but less severe than most orals)
• ⚠HPTA suppression (less severe than most AAS but still requires PCT for men)
• ⚠Expensive compared to most other orals
• ⚠Commonly counterfeited or substituted with cheaper orals (often Dianabol or Winstrol)
• ⚠Potential for mild kidney stress at high doses
• ⚠Cramping and muscle pumps (especially lower back) can be debilitating during training

Contraindications

• 🚫Pre-existing liver disease or elevated liver enzymes
• 🚫Severe dyslipidemia or cardiovascular disease
• 🚫Kidney disease
• 🚫Prostate cancer
• 🚫Hypercalcemia
• 🚫Pregnancy
• 🚫Children (except under strict medical supervision for specific conditions)

If anavar was run as a standalone (women or with TRT base that continues): No specific PCT required beyond resuming normal TRT. For men running anavar with a cycle that ends: PCT timing depends on the injectable base. If anavar was the only compound: Begin Nolvadex 20mg/day for 4 weeks starting 1-2 days after last dose, or Clomid 25-50mg/day for 3-4 weeks. Anavar is less suppressive than most AAS, and recovery is generally straightforward.

• 1.Always get lab-tested anavar; it is one of the most commonly faked compounds, often substituted with Dianabol or Winstrol
• 2.Taurine supplementation (3-5g/day) significantly helps with the painful lower back and calf pumps
• 3.Despite being "mild," anavar will devastate your HDL cholesterol; supplement with citrus bergamot, omega-3, and prioritize cardio
• 4.Women should start at 5mg/day and assess for 2 weeks before increasing; virilization at low doses is rare but not impossible
• 5.Splitting the dose (AM and PM) is important due to the ~10 hour half-life for stable blood levels
• 6.Anavar is one of the best strength-per-pound-gained compounds; powerlifters and weight-class athletes find it particularly valuable

1. [1]Orr R, Fiatarone Singh M. The anabolic androgenic steroid oxandrolone in the treatment of wasting and catabolic disorders. Drugs. 2004;64(7):725-750.
2. [2]Fox M, et al. Oxandrolone pharmacokinetics and metabolism. Clin Pharmacol Ther. 1996.
3. [3]Grunfeld C, et al. Oxandrolone in the treatment of HIV-associated weight loss. Ann Intern Med. 2006.
4. [4]Oxandrolone prescribing information. FDA label.