The metabolism of estrogens may be increased by concomitant use of substances known to induce drug-metabolising enzymes, specifically cytochrome P450 enzymes, such as anticonvulsants (e.g. phenobarbital, phenytoin, carbamazepine) and anti-infectives (e.g. rifampicin, rifabutin, nevirapine, efavirenz).
Ritonavir and nelfinavir, although known as strong inhibitors, by contrast exhibit inducing properties when used concomitantly with steroid hormones.
Breast pain, tenderness or enlargement, Headache/migraine, Gut disturbances, such as nausea, abdominal pain, bloating, flatulence, indigestion, Legcramps, Fatigue, Weightchanges, Vaginalthrush, Depression, Anxiety, Dizziness, Changes in sex drive, Rise in blood pressure, Gall bladder disease, Swelling of the ankles due to to fluid retention (peripheral oedema), Skin reactions such as rash and itch, Steepening of corneal curvature which may make contact lenses uncomfortable, Premenstrual-like symptoms, Disturbance in liver function, Irregular brown patches on the skin, usually of the face (chloasma), Blood clots in the blood vessels.
For women with a uterus: If pregnancy occurs during medication with Conjugated Oestrogens treatment should be withdrawn immediately. The results of most epidemiological studies to date relevant to inadvertent foetal exposure to estrogens indicate no teratogenic or foetotoxic effects.
Lactation: Conjugated Oestrogens is not indicated during lactation.
Asthma, epilepsy, migraine; heart or kidney dysfunction; CV disease; cerebrovascular disorders; diabetes, hypercalcaemia; gall bladder disease; porphyria. Children. Lactation.
Lactation: Use controversial; estrogens are excreted into breast milk in small quantities; use with caution
Symptoms of overdosage of estrogen containing products in adults and children may include nausea, vomiting, breast tenderness, dizziness, abdominal pain, drowsiness/fatigue; withdrawal bleeding may occur in females. There is no specific antidote and further treatment if necessary should be symptomatic.
Female Sex hormones
Do not store above 25° C. Store at room temperature.