This information is for educational purposes only. It is not intended as medical advice. Always consult a qualified healthcare professional.
OTC
SYNAREL NASAL SOLUTION
鼻用噴液劑
INN: NAFARELIN ACETATE
Data updated: 2026-04-11
Available in:
🇨🇿🇩🇪🇬🇧
Form
鼻用噴液劑
Dosage
—
Route
—
Storage
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About This Product
Manufacturer
User Reviews
Reviews reflect personal experiences and are not medical advice. Always consult your doctor.
PFIZER PHARMACEUTICALS LLC (CAGUAS PLANT) (TW)
ATC Code
H01CA02
Source
TFDA
X
H01CA02(WHO)
In general: ℞ (Prescription only)
(2R)-N-[(2R)-5-carbamimidamido-1-[(2S)-2-[(carbamoylmethyl)carbamoyl]pyrrolidin-1-yl]-1-oxopentan-2-yl]-2-[(2R)-2-[(2R)-2-[(2R)-3-hydroxy-2-[(2S)-2-[(2S)-3-(1H-imidazol-4-yl)-2-{[(2R)-5-oxopyrrolidin-2-yl]formamido}propanamido]-3-(1H-indol-3-yl)propanamido]propanamido]-3-(4-hydroxyphenyl)propanamido]-3-(naphthalen-2-yl)propanamido]-4-methylpentanamide
76932-56-4Y76932-60-0 (acetate)
25077649
3902
DB00666Y
10482014Y
1X0094V6JV
D08241
CHEBI:7445Y
ChEMBL1201309Y
DTXSID001031284
Interactive image
CC(C)C[C@H](NC(=O)[C@@H](Cc1ccc2ccccc2c1)NC(=O)[C@H](Cc1ccc(O)cc1)NC(=O)[C@H](CO)NC(=O)[C@H](Cc1c[nH]c2ccccc12)NC(=O)[C@H](Cc1c[nH]cn1)NC(=O)[C@@H]1CCC(=O)N1)C(=O)N[C@@H](CCCNC(=N)N)C(=O)N1CCC[C@H]1C(=O)NCC(N)=O
InChI=1S/C66H83N17O13/c1-36(2)25-48(58(89)76-47(13-7-23-71-66(68)69)65(96)83-24-8-14-54(83)64(95)73-33-55(67)86)77-60(91)50(28-38-15-18-39-9-3-4-10-40(39)26-38)78-59(90)49(27-37-16-19-43(85)20-17-37)79-63(94)53(34-84)82-61(92)51(29-41-31-72-45-12-6-5-11-44(41)45)80-62(93)52(30-42-32-70-35-74-42)81-57(88)46-21-22-56(87)75-46/h3-6,9-12,15-20,26,31-32,35-36,46-54,72,84-85H,7-8,13-14,21-25,27-30,33-34H2,1-2H3,(H2,67,86)(H,70,74)(H,73,95)(H,75,87)(H,76,89)(H,77,91)(H,78,90)(H,79,94)(H,80,93)(H,81,88)(H,82,92)(H4,68,69,71)/t46-,47-,48-,49-,50+,51-,52-,53-,54-/m0/s1YKey:RWHUEXWOYVBUCI-ITQXDASVSA-NY
Nafarelin, sold under the brand nameSynarelamong others, is agonadotropin-releasing hormone agonist(GnRH agonist) medication which is used in the treatment ofendometriosisandearly puberty.It is also used to treatuterine fibroids, tocontrol ovarian stimulationinin vitrofertilization(IVF), and as part oftransgender hormone therapy.The medication is used as anasal spraytwo to three times per day.
Side effectsof nafarelin are related tosex hormonedeprivationand includesymptomsoflow testosterone levelsandlow estrogen levelssuch ashot flashes,sexual dysfunction,vaginal atrophy, andosteoporosis.Nafarelin is agonadotropin-releasing hormone agonist(GnRH agonist) and works by preventing theproductionofsex hormonesby thegonads.It can lower sex hormone levels by 95% in both sexes.Nafarelin is apeptideand ananalogueofGnRHTooltip gonadotropin-releasing hormone.
Nafarelin was introduced for medical use in 1990.It is available widely throughout the world, including inNorth America,Europe, and elsewhere throughout the world.The medication is one of only two medically used GnRH analogues that are available as nasal sprays, the other beingbuserelin.
⚠️ Warnings
• Do not use in patients with risk factors for decreased bone mineral density.
Ovarian cysts may occur during the first 2 month of therapy, more commonly in women with polycystic ovarian disease.
Monitor patient regularly, especially during the first 6-8 week of therapy to ensure patient compliance and adequate response.
Determine bone age and growth velocity within 3-6 month of initiation of therapy and periodically thereafter.