Aygestin

Aygestin (Norethindrone) is a form of progesterone, a female hormone. Norethindrone prevents ovulation (the release of an egg from an ovary). This medication also causes changes in your cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.
Aygestin (Norethindrone) is used for birth control (contraception) to prevent pregnancy. Norethindrone is also used to treat menstrual disorders, endometriosis, or abnormal vaginal bleeding caused by a hormone imbalance.

Usage
Take this medication by mouth as prescribed by your doctor. You may take it with food or after a meal to prevent stomach upset. Follow the dosing schedule carefully. Ask your doctor if you have any questions. The dosage is based on your medical condition and response to therapy. For the treatment of stopped menstrual periods and abnormal bleeding from the uterus, this drug is usually taken once daily for 5-10 days during the second half of the planned menstrual cycle or as directed by your doctor. Withdrawal bleeding usually occurs within 3-7 days after you stop taking the medication. Inform your doctor if your condition persists or worsens.

Before using Aygestin:
Tell your health care provider if you have any medical conditions, especially if any of the following apply to you:
if you are planning to become pregnant or are breast-feeding
if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
if you have allergies to medicines, foods, or other substances
if you have seizures (eg, epilepsy), migraines, heart problems, kidney problems, or a history of depression
if you have a history of high blood pressure, diabetes, high blood cholesterol, lupus, or blood clots, or if a member of your family has had these problems
if you smoke or are very overweight

Side effects:

• mild nausea, vomiting, bloating, stomach cramps;
• breast pain, swelling, or tenderness;
• dizziness;
• freckles or darkening of facial skin;
• increased acne or hair growth;
• changes in weight;
• vaginal itching or discharge;
• skin itching or rash;
• changes in your menstrual periods, decreased sex drive; or
• mild headache