Family Planning While Taking Rebif® (interferon beta-1a)
We're sorry, but we're unable to process your login. Please try again.
We're sorry, you are not authorized to access this site. Please contact your local Merck representative if you have any inquiries.
This page requires you to register for an account with Merck. Please login with your Merck account credentials below, or register for a new account.

Log in with Merck
{* #signInForm *}
{* signInEmailAddress *}
{* currentPassword *}
{* captcha *}
{* /signInForm *}

FAMILY PLANNING WHILE TAKING REBIF®
(interferon beta-1a)

Pregnant woman dressed for autumn weather in scarf, heavy sweater, and wool blazer

FAMILY PLANNING WITH RMS

If you have relapsing multiple sclerosis (RMS) and are thinking about starting a family, it’s important to plan ahead. Talk with your healthcare provider about your options for treating RMS while you are trying to conceive, and ask if Rebif® may be a good choice for you. 

BEFORE YOU TAKE REBIF®, TELL YOUR HEALTHCARE PROVIDER IF:

  • You are pregnant or plan to become pregnant. It is not known if Rebif® will harm your unborn baby
  • You are breastfeeding or plan to breastfeed. Rebif® may pass into breastmilk. Talk with your healthcare provider about the best way to feed your baby if you take Rebif®

MS TREATMENTS DURING PREGNANCY

The possible effects of interferon beta during pregnancy were evaluated in a pregnancy registry. This registry tracked the outcomes of 2,831 pregnancies of women with multiple sclerosis in Finland from 1996-2014 and Sweden from 2005-2014.  

Early in their pregnancies, some women were exposed to interferon beta, including Rebif® (n=797 pregnancies), while others were not exposed to any disease-modifying drugs (n=1,647 pregnancies). The data:


BEFORE, DURING, AND AFTER PREGNANCY

Whether you’re planning to get pregnant or restarting treatment after childbirth, talk with your healthcare provider to see if Rebif® may be the right treatment for your RMS.

PRE-PREGNANCY

Rebif® may be able to treat your RMS even when you’re trying to become pregnant. If you’re thinking about conceiving, ask your doctor whether Rebif® may be an option for you.

PREGNANCY

Tell your healthcare provider right away if you become pregnant. Although the Rebif® Pregnancy Registry data did not identify a drug-associated risk of major birth defects with interferon beta use during early pregnancy, it is not known if Rebif® may harm your unborn baby.

POST-PREGNANCY

Your healthcare provider can help you decide when it’s the right time to start (or restart) Rebif® after giving birth. Talk to them about the risk of relapse after birth and how soon you should consider starting treatment.

You should talk to your healthcare provider about the best way to feed your baby if you take Rebif®, as it may pass into your breastmilk.

 

The person in this photo is not an actual Rebif® patient.

FAMILY PLANNING DOESN’T HAVE TO STOP WITH MS

DOWNLOAD FREE BROCHURE

Next: Free Information Kit →

IMPORTANT SAFETY INFORMATION

Before beginning treatment, you should discuss the potential benefits and risks associated with Rebif with your healthcare provider.

Rebif can cause serious side effects. Tell your healthcare provider right away if you have any of the symptoms listed below while taking Rebif.

  • Behavioral health problems including depression and suicidal thoughts. You may have mood problems including depression (feeling hopeless or feeling bad about yourself), and thoughts of hurting yourself or suicide
  • Liver problems or worsening of liver problems including liver failure. Symptoms may include nausea, loss of appetite, tiredness, dark colored urine and pale stools, yellowing of your skin or the white part of your eye, bleeding more easily than normal, confusion, and sleepiness. During your treatment with Rebif you will need to see your healthcare provider regularly and have regular blood tests to check for side effects
  • Serious allergic and skin reactions. Symptoms may include itching, swelling of your face, eyes, lips, tongue or throat, trouble breathing, anxiousness, feeling faint, skin rash, hives, sores in your mouth, or skin blisters and peels
  • Injection site problems. Symptoms at the injection site may include redness, pain, swelling, color changes (blue or black), and drainage of fluid
  • Blood problems. Rebif can affect your bone marrow and cause low red and white blood cell and platelet counts. In some people, these blood cell counts may fall to dangerously low levels. If your blood cell counts become very low, you can get infections and problems with bleeding and bruising. Your healthcare provider may ask you to have regular blood tests to check for blood problems
  • Seizures. Some people have had seizures while taking Rebif

Rebif will not cure your MS but may decrease the number of flare-ups of the disease and slow the occurrence of some of the physical disability that is common in people with MS.

Do not take Rebif if you are allergic to interferon beta, human albumin, or any of the ingredients in Rebif.

Before you take Rebif, tell your healthcare provider if you have or have had any of the following conditions:

  • mental illness, including depression and suicidal behavior
  • liver problems, bleeding problems or blood clots, low blood cell counts, seizures (epilepsy), or thyroid problems
  • you drink alcohol
  • you are pregnant or plan to become pregnant. It is not known if Rebif will harm your unborn baby
  • you are breastfeeding or plan to breastfeed. Rebif may pass into your breastmilk. Talk with your healthcare provider about the best way to feed your baby if you take Rebif

Tell your healthcare provider about all medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements.

 

The most common side effects of Rebif include:

  • flu-like symptoms. You may have flu-like symptoms when you first start taking Rebif. You may be able to manage these flu-like symptoms by taking over-the-counter pain and fever reducers. For many people, these symptoms lessen or go away over time. Symptoms may include muscle aches, fever, tiredness, and chills
  • stomach pain
  • change in liver blood tests

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of Rebif. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. 

You are encouraged to report negative side effects of prescription drugs to FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.

IMPORTANT SAFETY INFORMATION

Before beginning treatment, you should discuss the potential benefits and risks associated with Rebif with your healthcare provider.

Rebif can cause serious side effects. Tell your healthcare provider right away if you have any of the symptoms listed below while taking Rebif.

  • Behavioral health problems including depression and suicidal thoughts. You may have mood problems including depression (feeling hopeless or feeling bad about yourself), and thoughts of hurting yourself or suicide
  • Liver problems or worsening of liver problems including liver failure. Symptoms may include nausea, loss of appetite, tiredness, dark colored urine and pale stools, yellowing of your skin or the white part of your eye, bleeding more easily than normal, confusion, and sleepiness. During your treatment with Rebif you will need to see your healthcare provider regularly and have regular blood tests to check for side effects
  • Serious allergic and skin reactions. Symptoms may include itching, swelling of your face, eyes, lips, tongue or throat, trouble breathing, anxiousness, feeling faint, skin rash, hives, sores in your mouth, or skin blisters and peels
  • Injection site problems. Symptoms at the injection site may include redness, pain, swelling, color changes (blue or black), and drainage of fluid
  • Blood problems. Rebif can affect your bone marrow and cause low red and white blood cell and platelet counts. In some people, these blood cell counts may fall to dangerously low levels. If your blood cell counts become very low, you can get infections and problems with bleeding and bruising. Your healthcare provider may ask you to have regular blood tests to check for blood problems
  • Seizures. Some people have had seizures while taking Rebif

Rebif will not cure your MS but may decrease the number of flare-ups of the disease and slow the occurrence of some of the physical disability that is common in people with MS.

Do not take Rebif if you are allergic to interferon beta, human albumin, or any of the ingredients in Rebif.

Before you take Rebif, tell your healthcare provider if you have or have had any of the following conditions:

  • mental illness, including depression and suicidal behavior
  • liver problems, bleeding problems or blood clots, low blood cell counts, seizures (epilepsy), or thyroid problems
  • you drink alcohol
  • you are pregnant or plan to become pregnant. It is not known if Rebif will harm your unborn baby
  • you are breastfeeding or plan to breastfeed. Rebif may pass into your breastmilk. Talk with your healthcare provider about the best way to feed your baby if you take Rebif

Tell your healthcare provider about all medicines you take, including prescription and over-the-counter medicines, vitamins and herbal supplements.

 

The most common side effects of Rebif include:

  • flu-like symptoms. You may have flu-like symptoms when you first start taking Rebif. You may be able to manage these flu-like symptoms by taking over-the-counter pain and fever reducers. For many people, these symptoms lessen or go away over time. Symptoms may include muscle aches, fever, tiredness, and chills
  • stomach pain
  • change in liver blood tests

Tell your healthcare provider if you have any side effect that bothers you or that does not go away.

These are not all the possible side effects of Rebif. For more information, ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. 

You are encouraged to report negative side effects of prescription drugs to FDA. Visit www.fda.gov/medwatch, or call 1-800-FDA-1088.