This brand name is authorized in UK.
The drug SYRENIRING contains a combination of these active pharmaceutical ingredients (APIs):
1
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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
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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. |
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This drug has been assigned below unique identifiers within the countries it is being marketed:
| Country | Identification scheme | Identifier(s) |
|---|---|---|
| GB | Medicines & Healthcare Products Regulatory Agency | 366023 |
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