Sildisoft tablets contain Sildenafil citrate as their active ingredient. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor, which works by increasing blood flow to the penis during sexual stimulation, helping men achieve and maintain an erection. Sildisoft tablets are available in a soft (chewable) form, making them convenient for individuals who have difficulty swallowing pills. They can be chewed or allowed to dissolve in the mouth before swallowing.