This brand name is authorized in Ecuador
The drug ACTIVA 21 contains a combination of these active pharmaceutical ingredients (APIs):
UNII 5W7SIA7YZW - LEVONORGESTREL
The precise mode of action of levonorgestrel as an emergency contraceptive is not known. At the recommended regimen, levonorgestrel is thought to work mainly by preventing ovulation and fertilisation if intercourse has taken place in the preovulatory phase, when the likelihood of fertilisation is the highest.
UNII 423D2T571U - ETHINYL ESTRADIOL
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.
This drug has been assigned below unique identifiers within the countries it is being marketed:
|Agencia Nacional de Regulación, Control y Vigilancia Sanitaria
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