Side effects such as fever, nausea, vomiting, diarrhea, or abdominal pain are uncommon and usually mild. If any of these effects last or get worse, tell your doctor or midwife right away.

Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if you have any serious side effects, including: strong contractions that are very close together (uterine overstimulation).

Get medical help right away if you have any very serious side effects, including: easy bruising/bleeding, shortness of breath, chest pain, confusion.

This drug has rarely caused injury to the womb (uterine rupture), which may require emergency surgery. Symptoms include severe pain in your womb and an abnormal heart rate in your baby. Careful monitoring by your doctor or midwife may decrease your risk.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

In the US -

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.

In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.