Finasteride tablet uses include treating hair loss and prostate issues. Know the finasteride tablet dosage, 1mg uses, and possible 1mg side effects. Easy-to-read patient leaflet for Finasteride 1 mg Tablets . Includes indications, proper use, special instructions, precautions, and possible side effects. Finasteride 1 mg is an oral medicine used to treat male pattern hair loss. It works by reducing scalp dihydrotestosterone, slowing hair loss and maintaining hair density while treatment continues. It should be taken once daily as prescribed, and missed doses should not be doubled. Common side effects include dizziness and chills, while less common ones include swelling, breast tenderness, and skin rash. The medicine is unsafe in pregnancy, children, and liver disease. It should be stored at ... Finasteride is used in the treatment of hair loss and benign prostatic hyperplasia. It treats early forms of male pattern hair loss (also known as androgenetic alopecia). Finasteride is a 5-alpha reductase inhibitor.