Could methergine cause malformation to the fetus when taken during on its 4week pregnancy?

Hi,

This medication is to be used only after delivery of your baby.
Pregnancy

Category C. Animal reproductive studies have not been conducted with Methergine. It is also not known whether methylergonovine maleate can cause fetal harm or can affect reproductive capacity. Use of Methergine is contraindicated during pregnancy because of its uterotonic effects.

Methylergonovine may pass into breast milk in small amounts and could affect a nursing baby. In some cases, you will need to use this medication for up to 1 week after your baby is born. Talk with your doctor about whether you should breast-feed during that time. You may need to use a breast pump to establish and maintain your milk flow until your methylergonovine treatment is finished.

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Seek emergency medical attention if you think you have used too much of this medicine. Symptoms of a methylergonovine overdose may include nausea, vomiting, stomach pain, numbness or tingling, muscle twitching, feeling light-headed, fainting, shallow breathing, coldness, or seizure (convulsions).

There may be other drugs that can affect methylergonovine. Tell your doctor about all the prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor.

Grapefruit and grapefruit juice may interact with methylergonovine. The interaction could lead to potentially dangerous effects. Discuss the use of grapefruit products with your doctor. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.

I hope I have been of help.-