This brand name is authorized in United Kingdom
The drug SYRENIRING contains a combination of these active pharmaceutical ingredients (APIs):
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1
17 alpha-Ethinylestradiol
UNII 423D2T571U - ETHINYL ESTRADIOL
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Ethinylestradiol is chemically and biologically identical to endogenous human oestradiol. It substitutes for the loss of estrogen production in menopausal women, and alleviates menopausal symptoms. Estrogens prevent bone loss following menopause or ovariectomy. |
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2
Etonogestrel
UNII 304GTH6RNH - ETONOGESTREL
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Etonogestrel is the biologically active metabolite of desogestrel, a progestagen widely used in OCs. It is structurally derived from 19-nortestosterone and binds with high affinity to progesterone receptors in the target organs. The contraceptive effect of etonogestrel is primarily achieved by inhibition of ovulation. |
This drug has been assigned below unique identifiers within the countries it is being marketed:
| Country | Identification scheme | Identifier(s) |
|---|---|---|
| Country: GB | Medicines & Healthcare Products Regulatory Agency | Identifier(s): 366023 |
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