Fildena 100 mg is a medication containing sildenafil citrate, which is used to treat erectile dysfunction in men. The typical recommended dosage for Fildena 100 mg is one tablet taken orally as needed, approximately 30 minutes to 1 hour before sexual activity. However, it's essential to follow the advice of a healthcare professional regarding the appropriate dosage and usage instructions, as they can vary based on individual factors such as health status and response to the medication.