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Necon

Last reviewed on RxList: 3/24/2008
Necon Side Effects Center

Last reviewed on RxList 12/13/2016

Necon (norethindrone and ethinyl estradiol) contains a combination of female hormones that prevent ovulation used as contraception to prevent pregnancy. Necon is also used to treat severe acne. Necon is available in generic form. Common side effects of Necon include:

  • nausea (especially when you first start using Necon),
  • vomiting,
  • headache,
  • stomach cramping,
  • bloating,
  • dizziness,
  • vaginal discomfort/irritation/itching,
  • increased vaginal fluids/discharge,
  • breast tenderness/enlargement/swelling,
  • nipple discharge,
  • freckles or darkening of facial skin,
  • increased hair growth,
  • loss of scalp hair,
  • changes in weight or appetite,
  • problems with contact lenses, or
  • decreased sex drive.

Acne may improve or get worse. Vaginal bleeding between periods (spotting) or missed/irregular menstrual periods may occur, especially during the first few months of use of Necon.

Necon is a 28-day regimen of tablets, 21 have active medication (hormones) and 7 are inert reminder pills. Take one active pill once daily for 21 days in a row, and then an inactive pill once daily for 7 days after you have taken the last active pill. Follow the schedule as prescribed by your doctor. Necon may interact with acetaminophen, ascorbic acid (vitamin C), prednisolone, theophylline, St. John's wort, antibiotics, seizure medications, barbiturate sedatives, or HIV or AIDS medications. Tell your doctor all medications you are taking. Necon must not be used during pregnancy. If you become pregnant or think you may be pregnant, tell your doctor immediately. If you have just given birth or had a pregnancy loss/abortion after the first 3 months, talk with your doctor about reliable forms of birth control, and find out when it is safe to start using birth control that contains a form of estrogen, such as this medication. This medication passes into breast milk. This may affect milk production and may have undesirable effects on a nursing infant. Consult your doctor before breastfeeding.

Our Necon (norethindrone and ethinyl estradiol) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Necon Consumer Information

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

Stop using birth control pills and call your doctor at once if you have a serious side effect such as:

  • sudden numbness or weakness, especially on one side of the body;
  • sudden and severe headache, confusion, problems with vision, speech, or balance;
  • chest pain or heavy feeling, pain spreading to the arm or shoulder, nausea, sweating, general ill feeling;
  • sudden cough, wheezing, rapid breathing, coughing up blood;
  • pain, swelling, warmth, or redness in one or both legs;
  • a change in the pattern or severity of migraine headaches;
  • nausea, upper stomach pain, itching, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
  • swelling in your hands, ankles, or feet;
  • a breast lump; or
  • symptoms of depression (sleep problems, weakness, tired feeling, mood changes).

Less serious side effects may include:

  • mild nausea (especially when you first start taking this medicine), vomiting, bloating, stomach cramps;
  • breast tenderness or swelling, nipple discharge;
  • freckles or darkening of facial skin, increased hair growth, loss of scalp hair;
  • changes in weight or appetite;
  • problems with contact lenses;
  • vaginal itching or discharge; or
  • changes in your menstrual periods, decreased sex drive.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Necon (Norethindrone and Ethinyl Estradiol Tablets )

Necon Professional Information

SIDE EFFECTS

An increased risk of the following serious adverse reactions has been associated with the use of oral contraceptives (see WARNINGS section).

The following adverse reactions have been reported in patients receiving oral contraceptives and are believed to be drug-related:

The following adverse reactions have been reported in users of oral contraceptives and the association has been neither confirmed nor refuted:

Read the entire FDA prescribing information for Necon (Norethindrone and Ethinyl Estradiol Tablets )

Related Resources for Necon

© Necon Patient Information is supplied by Cerner Multum, Inc. and Necon Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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