Cetrorelix vs Buserelin
Head-to-head comparison of Cetrorelix (Cetrorelix acetate) and Buserelin (Buserelin acetate) — benefits, dosing, side effects, research data, and where to buy.
Research Score
| Property | Cetrorelix | Buserelin |
|---|---|---|
| Category | Sexual Health | Sexual Health |
| Full Name | Cetrorelix acetate | Buserelin acetate |
| Molecular Weight | 1431.06 Da | 1239.39 Da |
| Half-Life | ~30 hours | ~50-80 minutes |
| Amino Acids | 10 | 9 |
| Typical Dose | 0.25 mg SC daily | 200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot per protocol |
| Route | Subcutaneous | Intranasal/Subcutaneous |
| Purity | ≥98% | ≥98% |
| Studies Count | 300 | 450 |
| Research Status | Clinical | Clinical |
Cetrorelix Benefits
- ✓prevents premature ovulation
- ✓supports IVF cycle control
- ✓blocks LH surge
- ✓short-acting pituitary suppression
Buserelin Benefits
- ✓pituitary down-regulation
- ✓cycle synchronization
- ✓ovarian stimulation control
- ✓fertility protocol timing
Cetrorelix Dosing
0.25 mg SC daily|start on stimulation day 5-6|protocol-dependent antagonist cycle
Buserelin Dosing
200 mcg intranasal 3x daily|0.2-0.5 mg SC daily|depot injection per protocol
Cetrorelix Side Effects
- ⚠injection-site reactions
- ⚠headache
- ⚠nausea
Buserelin Side Effects
- ⚠hot flashes
- ⚠headache
- ⚠initial LH/FSH flare
Research Overview
Cetrorelix
Cetrorelix is a cornerstone GnRH antagonist in assisted reproduction, with a fast onset and reversible suppression of LH. Trials show it improves cycle management by reducing premature ovulation during stimulation.
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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