Best Treatment for Testosterone Deficiency
For men with testosterone deficiency, testosterone replacement therapy (TRT) adjusted to achieve total testosterone levels in the middle tertile of the normal reference range (450-600 ng/dL) is the recommended treatment, combined with lifestyle modifications. 1, 2
Diagnosis Confirmation
Before initiating treatment:
- Confirm diagnosis with morning total testosterone measurements below normal range on at least two separate days 3
- Measure between 8-10 AM to account for diurnal variation 2
- Consider free testosterone by equilibrium dialysis and SHBG levels, especially in obese patients 2
- Total testosterone levels <300 ng/dL are generally considered low 2
Treatment Algorithm
First-Line Approach:
Lifestyle Modifications (Grade B evidence) 1
- Weight loss for overweight/obese patients
- Regular physical activity
- Adequate sleep
- Stress reduction
- Healthy diet
- Moderate alcohol consumption
- Smoking cessation
Testosterone Replacement Therapy 1, 3
- Starting dose: 40.5 mg testosterone gel applied topically once daily
- Target: Total testosterone level of 450-600 ng/dL
- Available formulations:
- Transdermal gels/patches
- Injectable testosterone
- Testosterone pellets
Special Considerations:
Men seeking fertility: TRT should NOT be prescribed as it suppresses spermatogenesis 1, 4
- Alternative options include:
- Human chorionic gonadotropin (hCG)
- Selective estrogen receptor modulators
- Aromatase inhibitors
- Alternative options include:
Medication-induced hypogonadism: Consider medication adjustment when possible 2
- Common culprits:
- Opioids/opiates
- Glucocorticoids
- Antipsychotics (especially second-generation)
- Common culprits:
Recent cardiovascular events: Delay TRT for 3-6 months 1
Monitoring and Follow-up
- Check total testosterone levels at approximately 14 and 28 days after starting treatment 3
- Adjust dose based on pre-dose morning serum testosterone concentration 3
- Regular monitoring of:
- Total testosterone
- Hematocrit (discontinue if exceeds 54%)
- PSA (baseline, then 3-6 months after starting therapy, then annually)
- Digital rectal examination
Important Caveats
- Cardiovascular risk: Counsel patients that current evidence cannot definitively state whether TRT increases or decreases cardiovascular events 1
- Prostate cancer: Use TRT with caution in men with in-situ prostate cancer on active surveillance or previously treated prostate cancer 1
- Venous thromboembolism: Observational studies have not shown increased risk with TRT, despite FDA warning 1
- Secondary exposure: Warn patients about risk of virilization in children who contact unwashed application sites 3
Nutraceutical Supplements
While some supplements show modest effects, they should be considered adjunctive rather than primary treatment 5:
- Zinc
- Vitamin D (in cases of deficiency)
- L-arginine
- Ashwagandha
The effects of these supplements on testosterone levels are modest and may not translate directly into clinical benefits 5.