Belgian pharmaceuticals group Mithra, a specialist in women's healthcare, will list on the Brussels stock exchange to fund research for new medicines, the group said on Monday. Mithra, based in Liege in the east of the country, makes contraceptive pills and hormones to aid with the adverse effects of menopause. Apart from a portfolio of generic drugs, Mithra is currently in the final stages of clinical trials to develop a contraceptive based on estrogen steroid hormone estetrol, which it says will have fewer side effects than existing products.