Fildena is a brand of sildenafil citrate tablets. It is available in several strengths, commonly: Fildena 25 mg Fildena 50 mg Fildena 100 mg Fildena 150 mg Fildena 200 mg Fildena strength is usually printed on the tablet packaging, such as Fildena 100. The standard Fildena range is commonly 25, 50 and 100 mg. Other variants are also marketed. Viagra Labs +1 Important: Do not assume the strength from the tablet's colour or shape. Check the blister or box, and use only the dose prescribed by your doctor. Never combine sildenafil with nitrate heart medicines.