HCG Dosage Guide: Protocols, Calculator & Safety

Context: This section focuses on men's off-label use. Women's applications (ovulation induction, IVF) require reproductive endocrinology supervision and are not addressed in DIY protocols.

Protocol A: TRT Fertility Preservation / Testicular Size Maintenance

For men on prescribed TRT who want to preserve testicular size and fertility:

• Dose: 500 IU subcutaneous 2x weekly (e.g., Monday and Thursday, if TRT injections are Tuesday and Friday)
• Schedule: ongoing co-administration throughout TRT
• Typical pairing: 500 IU hCG on TRT injection day or day before
• Monitoring: total testosterone, estradiol, hematocrit, PSA every 3-6 months
• Expected outcomes: maintained testicular size, preserved intratesticular testosterone, maintained or improved semen parameters if fertility is tracked

Protocol B: Post-Cycle Recovery (After Anabolic Steroid Cycle)

For men recovering from an anabolic androgen cycle:

• Week 1-4: hCG 1,500-2,000 IU SC 2-3x weekly
• Combine with SERM (Enclomiphene 12.5-25 mg daily OR clomiphene 25-50 mg daily OR tamoxifen 20-40 mg daily)
• Week 5-8: taper hCG to 500-1,000 IU 2x weekly while maintaining SERM
• Week 9-12: discontinue hCG, continue SERM for additional 2-4 weeks
• Post-recovery labs (week 12-16): total and free testosterone, LH, FSH, estradiol, prolactin, SHBG

Some protocols use hCG alone without SERM; mechanistic arguments support combination as more complete.

Protocol C: Hypogonadotropic Hypogonadism Without Fertility Goal

For men with secondary hypogonadism wanting testosterone normalization while preserving fertility potential:

• Dose: 1,000-2,000 IU SC 2-3x weekly
• Titrate to target testosterone: typically aim for 600-800 ng/dL total testosterone at mid-week
• Monitor estradiol: if estradiol rises >60 pg/mL with symptoms, consider anastrozole 0.5 mg 1-2x weekly
• Long-term maintenance: continue indefinitely if desired; cycle with breaks if preferred

Reconstitution Basics: hCG comes as lyophilized powder. Reconstitution with bacteriostatic water:

• 5,000 IU vial + 5 mL BAC water = 1,000 IU/mL. On insulin syringe: 1 unit = 10 IU; 10 units = 100 IU; 50 units = 500 IU; 100 units = 1,000 IU.
• 10,000 IU vial + 10 mL BAC water = 1,000 IU/mL. Same unit math.
• 5,000 IU vial + 2 mL BAC water = 2,500 IU/mL. On insulin syringe: 1 unit = 25 IU; 40 units = 1,000 IU. Useful for higher doses with less volume.

Injection Technique:

• SC injection preferred (simple, less painful than IM)
• 29-31G x 5/16" insulin syringe
• Rotate abdomen, flank, thigh sites
• Inject slowly; gentle needle insertion
• No aspiration required with short SC needle

Starting Cautions:

• Start at lower end of dose range (500 IU 2x weekly) and titrate up based on response
• Watch for gynecomastia (breast tenderness, nipple sensitivity) — early sign of estradiol rise
• Track testicular size subjectively; restoration/maintenance takes 4-8 weeks
• Draw labs after 4-6 weeks of stable dosing for meaningful assessment

When to Adjust Dose:

• Testosterone below target at stable dose → increase frequency or dose
• Testosterone above 1,000 ng/dL at mid-week → reduce dose
• Estradiol symptoms (gyno, water retention) → add anastrozole, consider dose reduction
• No response after 4-6 weeks → verify product quality, check Leydig cell capability

When to Stop:

• Primary indication resolved (recovery complete, fertility goal achieved)
• Established gynecomastia despite aromatase inhibitor
• Cardiovascular or prostate concerns emerge
• Development of cancer (reassess with oncology)

For men who have completed beginner protocols and want to optimize.

Advanced TRT + hCG Protocols:

Some TRT prescribers now use:

• Higher-frequency TRT with lower-frequency hCG: daily TRT injections (SC) with 500-1,000 IU hCG 2x weekly. Smoother testosterone curves, maintained testicular support.
• hCG on TRT-off-days: alternating compound administration days; some users report subjective preference.
• Higher-dose hCG for users with larger testicular suppression: 1,000-1,500 IU 2x weekly if 500 IU doesn't maintain testicular size.

Fertility Restoration Protocols:

For men specifically trying to conceive after TRT or steroid suppression:

• Stop exogenous testosterone (critical — full axis restoration requires this)
• hCG 2,000-3,000 IU SC 3x weekly
• Add FSH (hMG or recombinant FSH) 75-150 IU 3x weekly
• Duration: 3-6 months (one full spermatogenesis cycle is ~74 days, plus transit time)
• Semen analysis at 3 and 6 months
• Clomiphene or enclomiphene optional to support endogenous recovery simultaneously
• Working with reproductive endocrinologist or urologist specialized in male infertility improves outcomes

Advanced Post-Cycle Protocols:

For users with extended or multiple cycles:

• Extended hCG course: 6-8 weeks instead of 4
• Gradual taper rather than abrupt discontinuation
• Sequential combinations: hCG first 3-4 weeks (restore Leydig), then add gonadorelin or kisspeptin (restore hypothalamic-pituitary), alongside SERM
• Formal axis testing: GnRH stimulation test, semen analysis, comprehensive hormone panels at baseline and after recovery attempt

hCG Monotherapy for Chronic Secondary Hypogonadism:

Users preferring hCG over TRT long-term:

• Maintenance dose: 1,500-2,500 IU 2-3x weekly
• Continuous use with cycling considerations: some users cycle 8-12 weeks on, 2-4 weeks off, to reduce immunogenicity and desensitization risk
• Labs every 3-6 months: total T, free T, SHBG, estradiol, CBC, PSA, comprehensive metabolic
• Consider anastrozole if estradiol management needed

Managing Estradiol on hCG:

• Target estradiol: 30-50 pg/mL (sensitive LC-MS/MS assay)
• If estradiol 60+ pg/mL with symptoms: anastrozole 0.5 mg 1-2x weekly (start conservatively)
• If estradiol 80+ pg/mL: anastrozole 0.5 mg 2-3x weekly
• Avoid crushing estradiol (<20 pg/mL) — associated with worse lipids, libido, bone health, mood
• Pellets and other alternative forms of aromatase inhibition generally less needed; oral anastrozole adequate

Product Quality Optimization:

• Prescribed pharmaceutical hCG (Pregnyl, Novarel, Ovidrel): highest quality; requires physician prescription
• Compounding pharmacy hCG: variable quality; reputable compounders with good track record preferred
• Grey-market research peptide hCG: lowest and most variable quality; verification of actual hCG content difficult
• Higher-quality products worth the cost difference for ongoing protocols

Cycling Considerations:

• Continuous daily hCG not needed — 2-3x weekly adequate for most men
• Breaks every 3-6 months (2-4 weeks off) may reduce immunogenicity
• Short-term pauses (1-2 weeks) during vacation or illness rarely cause clinical problems

Still Recommended:

• Work with clinician comfortable with TRT + hCG combinations
• Regular lab monitoring (quarterly during protocol adjustment, less frequent once stable)
• Semen analysis if fertility is valued
• Symptom tracking alongside labs — subjective well-being matters as much as numbers

For experienced users with complex scenarios.

Scenario 1: Failed Standard Post-Cycle Recovery

Men whose axes have not recovered after standard 8-12 week hCG + SERM protocols:

• Extended combination therapy over 6+ months
• Sequential axis stimulation: hCG 4 weeks → add kisspeptin-10 or gonadorelin → add FSH → reassess
• Comprehensive hormone panel: rule out hyperprolactinemia (pituitary), primary hypogonadism (high LH low T), secondary causes
• Consider whether chronic exogenous androgen exposure has produced permanent axis suppression — in some long-term users, recovery may not be fully achievable; hCG monotherapy becomes long-term management

Scenario 2: Male Fertility Restoration After Long TRT

Men on TRT for 5+ years wanting to conceive:

• Discontinue TRT entirely (absolute requirement)
• hCG 3,000 IU 3x weekly for 6-12 months
• Add FSH (150-225 IU 3x weekly)
• Add clomiphene 25-50 mg daily for SERM support
• Semen analysis every 3 months
• Testicular ultrasound for baseline size documentation
• Work with reproductive urologist
• Realistic expectations: 60-80% of TRT users on hCG+FSH achieve sperm in ejaculate within 6-12 months; 40-70% achieve fertility

Scenario 3: Complex Post-Cycle for Heavy Multi-Compound Users

Users recovering from 52+ week cycles with multiple compounds (test, tren, deca, orals):

• Prolonged recovery protocol (6+ months)
• Multi-compound layered approach: hCG, gonadorelin, FSH, clomiphene, careful estradiol management
• Address potential prolactin issues (nandrolone and similar compounds may cause persistent prolactin elevation requiring cabergoline)
• Specialist supervision essential

Scenario 4: hCG Monotherapy as Long-Term TRT Alternative

Men preferring hCG over TRT for chronic secondary hypogonadism:

• hCG 2,000-3,000 IU SC 3x weekly indefinitely
• Quarterly labs for first year, then semi-annual
• Accept some limitations: more injections than TRT-only, more estradiol management needed, may be more expensive
• Advantages: preserved natural spermatogenesis, preserved testicular size, potentially better subjective experience for some men

Scenario 5: Dual hCG + Testosterone with Strategic Timing

Experienced users optimizing the combination:

• Daily SC TRT (SubQ testosterone cypionate or enanthate at 15-30 mg daily) produces smoother curves than weekly IM
• hCG 500-750 IU SC 2x weekly — timing relative to TRT varies by preference
• Estradiol management with anastrozole as indicated
• Semen analysis periodically to document fertility preservation
• This approach produces near-physiologic testosterone curves with testicular preservation

Advanced Cautions:

• Long-term simultaneous exogenous testosterone + hCG has uncharacterized decade-plus safety profile
• Immunogenicity may develop over years; if hCG stops working, switch to recombinant or take extended break
• Chronic high-dose hCG may cause persistent Leydig cell hypertrophy — relevance unclear
• Prostate cancer surveillance unchanged by hCG use; continue age-appropriate PSA and DRE
• Cardiovascular risk management as for TRT — hCG does not change cardiovascular guidelines

When to Switch Approaches:

• hCG stops being effective (immunogenicity, desensitization): switch to rLH or go to hCG break
• Estradiol becomes unmanageable: reassess doses, aromatase inhibitor approach, or consider alternatives
• Testicular discomfort persistent: reduce frequency, check for varicocele or other pathology
• Cost becomes prohibitive: TRT-only is less expensive (while accepting fertility and size trade-offs)

Medical Supervision: Complex hCG protocols benefit significantly from specialist supervision — urology, endocrinology, or men's health clinics with TRT expertise. Reproductive endocrinology involvement for fertility-specific protocols. Solo complex protocols are technically possible but accuracy of dose adjustment and adverse-event management benefits substantially from clinician oversight.