Gallifrey Drug Information

Gallifrey (Norethindrone Acetate Tablets, USP), 5 mg Gallifrey is indicated for the treatment of secondary amenorrhea, endometriosis, and abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology, such as submucous fibroids or uterine cancer. Gallifrey is not intended, recommended or approved to be used with concomitant estrogen therapy in postmenopausal women for endometrial protection.

Gallifrey (Norethindrone Acetate Tablets, USP), 5 mg Therapy with Gallifrey tablets must be adapted to the specific indications and therapeutic response of the individual patient. Secondary amenorrhea, abnormal uterine bleeding due to hormonal imbalance in the absence of organic pathology: 2.5 mg to 10 mg Gallifrey may be given daily for 5 to 10 days to produce secretory transformation of an endometrium that has been adequately primed with either endogenous or exogenous estrogen. Progestin withdrawal bleeding usually occurs within three to seven days after discontinuing Gallifrey therapy.

Patients with a past history of recurrent episodes of abnormal uterine bleeding may benefit from planned menstrual cycling with Gallifrey. Endometriosis: Initial daily dosage of 5 mg Gallifrey for two weeks. Dosage should be increased by 2.5 mg per day every two weeks until 15 mg per day of Gallifrey is reached.

Therapy may be held at this level for six to nine months or until annoying breakthrough bleeding demands temporary termination.

See WARNINGS and PRECAUTIONS. The following adverse reactions have been observed in women taking progestins: Breakthrough bleeding Spotting Change in menstrual flow Amenorrhea Edema Changes in weight (decreases, increases) Changes in the cervical squamo-columnar junction and cervical secretions Cholestatic jaundice Rash (allergic) with and without pruritus Melasma or chloasma Clinical depression Acne Breast enlargement/tenderness Headache/migraine Urticaria Abnormalities of liver tests (i.e., AST, ALT, Bilirubin) Decreased HDL cholesterol and increased LDL/HDL ratio Mood swings Nausea Insomnia Anaphylactic/anaphylactoid reactions Thrombotic and thromboembolic events (e.g., deep vein thrombosis, pulmonary embolism, retinal vascular thrombosis, cerebral thrombosis and embolism) Optic neuritis (which may lead to partial or complete loss of vision)

Drug Interactions No pharmacokinetic drug interaction studies investigating any drug-drug interactions with norethindrone acetate tablets have been conducted.

Known or suspected pregnancy. There is no indication for norethindrone acetate tablets in pregnancy. (See PRECAUTIONS.) Undiagnosed vaginal bleeding Known, suspected or history of cancer of the breast Active deep vein thrombosis, pulmonary embolism or history of these conditions Active or recent (e.g., within the past year) arterial thromboembolic disease (e.g., stroke, myocardial infarction) Impaired liver function or liver disease As a diagnostic test for pregnancy Hypersensitivity to any of the drug components