Active Ingredient(s): Norethindrone
FDA Approved: * October 21, 2002
Pharm Company: * BARR
Category: Women's Health / Fertility

* This drug may consist of multiple approval dates, manufacturers, or distributors. If applicable, they would be listed below under "NDC Database Records".

Errin Overview

Norethisterone (NET), also known as norethindrone, is a medication that is used in combination with estrogen or alone in hormonal contraceptives, hormone replacement therapy, and in the treatment of gynecological disorders. It is a synthetic progestogen (or a progestin) of the 19-nortestosterone group and has similar effects to those of natural progesterone, including suppression of gonadotropins, ovulation inhibition, and endometrial transformation.[4][5] In addition to its progestogenic act...

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Details May Include Instructions, Side Effects, Interactions, Etc. Drug monograph is from Wikipedia. All text is available under the terms of the GFDL (GNU Free Documentation License). Source:

Recent Errin Forums: RSS Feed

errin tablet
1 Reply RSS
birth control pills ## Been having a lot of problems this last month or so. Joint and muscle pain, fatigue, heart palpitations, nausea, wearing a halter monitor now and having some extra blood work done but the nurse suggested I check into my BC to see if this could be causing the problems. This week has been so bad I barely have been able to get out of bed. Anyone else have similar symptoms?
Updated 4 years ago.

Possible Dosages for this and Related Drugs:

  • Tablet: 0.35mg, 5mg
Note: Above list includes dosages for all drugs with the same combination of active ingredients.

NDC Database Records for Errin: (2 results)

Sorted by National Drug Code
  • 0555-0344 Errin 28 Day Pack by Barr Laboratories Inc.
  • 51862-100 Errin .35 mg Oral Tablet by Mayne Pharma Inc.

Other drugs which contain Norethindrone or a similar ingredient: (102 results)

Possibly related Errin Topics:

errin tablet birth control pills ## Been having a lot of problems this last month or so. Joint and muscle pain, fatigue, heart palpit... 1 reply

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