Sildisoft tablets are a medicine used to treat erectile dysfunction (ED) in adult men. They contain sildenafil, a medicine belonging to a group called phosphodiesterase type 5 (PDE5) inhibitors. According to the manufacturer, Sunrise Remedies, Sildisoft is available in 50 mg and 100 mg strengths. Sildisoft is used to help men who have difficulty achieving or maintaining an erection during sexual activity. It works by relaxing certain blood vessels and increasing blood flow to the penis when a man is sexually stimulated. The medicine does not automatically cause an erection and does not increase sexual desire.