Follitropin alfa vs Buserelin
Head-to-head comparison of Follitropin alfa (Recombinant Human Follicle-Stimulating Hormone Alfa) and Buserelin (Buserelin acetate) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Follitropin alfa | Buserelin |
|---|---|---|
| Category | Sexual Health | Sexual Health |
| Full Name | Recombinant Human Follicle-Stimulating Hormone Alfa | Buserelin acetate |
| Molecular Weight | 30,000 Da | 1239.39 Da |
| Half-Life | ~24 hours | ~50-80 minutes |
| Amino Acids | N/A | 9 |
| Typical Dose | 75-150 IU per dose | 200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot per protocol |
| Route | Subcutaneous/Intramuscular | Intranasal/Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 850 | 450 |
| Research Status | Clinical | Clinical |
Follitropin alfa Benefits
- ✓supports spermatogenesis
- ✓improves Sertoli cell signaling
- ✓may enhance sperm parameters
- ✓complements LH-driven testosterone support
Buserelin Benefits
- ✓pituitary down-regulation
- ✓cycle synchronization
- ✓ovarian stimulation control
- ✓fertility protocol timing
Follitropin alfa Dosing
75-150 IU SC/IM 2-3x weekly|adjust based on FSH and semen analysis|often combined with hCG in men
Buserelin Dosing
200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot injection per protocol
Follitropin alfa Side Effects
- ⚠injection-site reactions
- ⚠headache
- ⚠bloating
Buserelin Side Effects
- ⚠hot flashes
- ⚠headache
- ⚠initial LH/FSH flare
Research Overview
Follitropin alfa
Clinical literature supports follitropin alfa for male infertility, especially when combined with LH activity to optimize testicular output. Its role is strongest in hypogonadotropic hypogonadism and assisted reproduction protocols.
Buserelin
Buserelin has been studied extensively as a GnRH agonist in IVF down-regulation and other reproductive-endocrine protocols. Its use helped establish modern cycle-control approaches in assisted reproduction.
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