Advertisement

What is Estrostep 21?

Estrostep 21 is no longer available in the United States.

Estrostep 21 is a prescription birth control pill that is taken for 21 days each month, followed by seven “reminder” pills with no medication to complete the month. It is also used to treat acne in women over 15 years old.

Containing the drugs ethinyl estradiol and norethindrone, this drug works by acting like a combination of the hormones estrogen and progestin to stop a woman from producing eggs. This combination may also work by changing the chemistry in a woman’s cervix or the lining of her uterus in a way that keeps sperm from getting in or keeps fertilized eggs from sticking.

Continue Learning about Pharmacology

Watch Out for Bad Medication Chemistry
Watch Out for Bad Medication Chemistry
Babe Ruth on team chemistry: “The way a team plays as a whole determines its success. You may have the greatest bunch of individual stars in the world...
Read More
How do statins help reduce low-density lipoprotein (LDL) cholesterol?
HealthyWomenHealthyWomen
Statins work by inhibiting an enzyme called HMG-CoA reductase, which controls the body's cholesterol...
More Answers
Can I take pain medicines with Procardia to help with pain?
MDLIVEMDLIVE
Yes. But be sure to clear this with your doctor so that he/she can monitor you for blood pressure ch...
More Answers
What are the Most Common Prescription Drugs That Cause Side Effects?
What are the Most Common Prescription Drugs That Cause Side Effects?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.