One of the most frequently prescribed fertility drugs is clomiphene citrate, which is also known by its common trade name Clomid, and which has shown about a 50 percent effectiveness rate, as noted by WebMD. Taking a vitamin supplement which includes at least 0.4 milligrams of folic acid and eating a healthy, balanced diet is also recommended by the National Institutes of Health's MedlinePlus. The NIH also recommends that herbal supplements be avoided because of the lack of conclusive studies regarding their safety during pregnancy.
Clomid is a selective estrogen receptor modulator, or SERM, drug that causes the pituitary gland and the hypothalamus to release hormones that promote ovulation. Altogether, Clomid causes three hormones to be released: GnRH, FSH and LH, which are also known respectively as gonadotropin releasing hormone, follicle stimulating hormone and luteinizing hormone.