Harvard Mental Health Letter

Using Clomid to treat infertility

Question:

What is the success rate of using Clomid for infertility? Is there a risk of multiple births?

Answer:

Clomid is the brand name of the drug clomiphene, which is used to stimulate the ovary to release an egg. It is used to treat women who are infertile because they have no ovulation or infrequent ovulation. Clomiphene stimulates molecules inside of cells that are normally stimulated by the hormone estrogen. One important function of these molecules is controlling the steps that lead to ovulation.

Infertility has many causes. Failure of ovulation is one of the most common. It is also one of the most successfully treated. If failure to ovulate is the only problem a couple faces, the use of clomiphene has about a 40% success rate for achieving pregnancy.

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