Prolin Plus 300 Tablet is used in combination with oestrogen for hormone replacement therapy. Besides this, Prolin Plus 300 Tablet also treats amenorrhoea (absence of menstrual periods) and prevents endometrial hyperplasia (thickened uterus lining). Also, it is indicated for the maintenance of pregnancy, threatened abortion and prevention of preterm labour. Hormone replacement therapy is a treatment to relieve menopause symptoms. It replaces hormones that are at a lower level as you approach menopause.