Clomid is definitely an oral drugs that can become used to stimulate ovulation. It works by preventing estrogen receptors at the hypothalamus, and that is an important "hormonal controls centre" for the body. When this occurs, the hypothalamus is stimulated to launch follicle exciting hormone (FSH), and luteinizing hormone (LH). These are really the commonly taking place ovarian stimulants, which prompt ovulation in a regular routine.