The present invention provides iraws-clomiphene and pharmaceutically acceptable salts and solvates thereof, characterized in that trans-clomiphene is in particulate form having a specific size range. The invention is also directed to pharmaceutical compositions comprising or formulated using trans -clomiphene or pharmaceutically acceptable satls and solvates having a specified size range and their use in treating disorders including secondary hypogonadism, type 2 diabetes, elevated cholesterol, elevated triglycerides, wasting, lipodystrophy, female and male infertility, benign prostate hypertrophy, prostate cancer, breast cancer, ovarian cancer and endometrial cancer.
