Clomiphene Citrate Dosing for Men to Increase Testosterone
For men seeking to increase testosterone levels, the recommended dosing of clomiphene citrate is 25 mg daily or 50 mg every other day, which has been shown to effectively raise testosterone levels while minimizing side effects. 1, 2
Mechanism and Indications
Clomiphene citrate (CC) is a selective estrogen receptor modulator (SERM) that works by:
- Blocking estrogen receptors in the hypothalamus
- Increasing luteinizing hormone (LH) and follicle-stimulating hormone (FSH) release
- Stimulating endogenous testosterone production
While not FDA-approved for men, CC is commonly prescribed off-label for:
Dosing Protocol
Initial Dosing
- Starting dose: 25 mg daily or 50 mg every other day 1, 2
- Lower doses (25 mg three times weekly) may be effective in some men 5
Monitoring and Dose Adjustment
- Check testosterone levels after 3 months of treatment
- Target testosterone level: 450-600 ng/dL (mid-normal range) 4
- Dose adjustment based on response:
- If testosterone <350 ng/dL: Increase dose by 20-25%
- If testosterone 350-750 ng/dL: Maintain current dose
- If testosterone >750 ng/dL: Decrease dose by 20-25% 4
Expected Timeline of Effects
Testosterone levels:
- Significant improvement at 3 months (+62.7 ng/dL)
- Additional benefit at 6 months (+181.8 ng/dL)
- Plateau at 9-12 months 6
Sperm parameters (if relevant):
- First significant improvement in sperm concentration at 9 months 6
Efficacy and Outcomes
- Mean testosterone increase: From ~300-350 ng/dL to ~600-650 ng/dL 1, 2
- Clinical improvements:
- Long-term efficacy: Maintained for up to 7 years with continued treatment 2
Safety and Side Effects
Common side effects (generally mild):
- Nipple tenderness (transient)
- Visual disturbances (blurred vision)
- Mood changes
- Elevated estradiol levels 2
Important Considerations
Fertility preservation: Unlike exogenous testosterone, CC preserves or may improve fertility, making it suitable for men who wish to maintain fertility 3, 4
Duration of treatment:
- For testosterone improvement: Minimum 3-6 months
- For sperm parameter improvement: At least 9 months 6
Monitoring recommendations:
- Testosterone levels at 3,6, and 12 months
- Hemoglobin/hematocrit to monitor for erythrocytosis
- Lipid profile (CC may improve cholesterol levels) 1
Contraindications
- Liver disease
- History of thromboembolic events
- Uncontrolled cardiovascular disease
- Concurrent use of medications that may interact with CC
CC offers a viable alternative to traditional testosterone replacement therapy, particularly for men who wish to preserve fertility while addressing symptoms of low testosterone.