Clomid (clomiphene) has been specially designed for the needs of females diagnosed with infertility. The effects of Clomid are similar to the way estrogen works – this drug stimulates the production of egg in the ovaries. Make sure you take this drug exactly as prescribed – as the recommendations of your health care provider may be different from those on the label. That kind of decision may be based on your individual factors – such as medical conditions you have (such as ovarian cysts, endometrial carcinoma, undiagnosed vaginal bleeding, any chronic medical illness, pregnancy, endometriosis, endocrine disorder, thyroid problem, liver disease, or uterine fibroids), as well as your general health condition. Never take more of Clomid than necessary, as this is not going to speed up the process of treatment. An overdose of Clomid needs to be reported to your local emergency center and may cause the following symptoms: vomiting, stomach pain, hot flashes, stomach swelling, upset stomach, visual spots or flashes, blurred vision, and some other ones. Abnormal vaginal bleeding, vomiting, headache, flushing, breast discomfort, and upset stomach are some of mild side effects you may get.