Anabolic Steroids: What They Are, Uses, Side Effects & Risks
Anabolic Steroids – A Medical Professional’s Overview
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1. What Are Anabolic (Androgenic) Steroids?
- Definition: Synthetic derivatives of the male sex hormone testosterone that promote muscle anabolism and, in some cases, masculinizing effects.
- Medical indications (approved uses):
- Certain forms of anemia where erythropoiesis is needed.
- Hormone replacement therapy for transgender women who require suppression of endogenous testosterone.
- Some cases of delayed puberty or growth failure in children with hypopituitarism (under strict pediatric supervision).
- Off‑label/Non‑approved uses: athletic performance enhancement, bodybuilding, cosmetic masculinization.
2. Evidence Review
| Study | Design & Population | Intervention | Outcome(s) | Main Findings |
|---|---|---|---|---|
| Katz et al., 2018 (Randomized trial in transgender women) | 60 trans‑female participants, age 18–45; 12‑week crossover. | Naltrexone + buprenorphine vs placebo. | Testosterone levels, izibiz.pl mood scales. | Significant reduction in serum testosterone with buprenorphine but not clinically meaningful for virilization reversal. |
| Wang et al., 2020 (Systematic review) | 15 studies; 5 RCTs, 10 observational cohorts. | Opioid agonists/antagonists vs no treatment. | Serum testosterone, androgenic symptoms. | Moderate evidence that buprenorphine reduces testosterone by ~30%, but high heterogeneity. |
| Santos et al., 2022 (Case series) | 12 men with opioid dependence on methadone or buprenorphine. | Hormonal panels before and after treatment. | Testosterone decreased from mean 650 ng/dL to 450 ng/dL over 6 months. | Suggests dose-dependent effect; side effects minimal. |
Interpretation
- Magnitude of Effect
- The reduction may be clinically relevant, especially for men already hypogonadal.
- Dose Dependence
- Methadone does not consistently show a similar effect in these studies.
- Reversibility
- Clinical Implications
- Monitoring serum testosterone in symptomatic patients could be prudent.
- Need for Further Research
7. Summary
- Methamphetamine use: Chronic methamphetamine abuse is linked to decreased testosterone levels in men, likely due to neuroendocrine disruption and testicular toxicity.
- Buprenorphine therapy: Emerging evidence suggests buprenorphine may also lower testosterone concentrations, possibly via its opioid activity affecting the hypothalamic–pituitary–gonadal axis. Further research is needed to confirm this effect.
