One medication used to treat erectile dysfunction is called fildena 100mg. When a guy has erectile dysfunction, it can be challenging for him to achieve and sustain an inadequate erection. It is among the most prevalent forms of male sexual dysfunction. To prevent overdose symptoms, do not take more than one pill of the prescribed medication within 24 hours of the preceding dose. You've had grapefruit, alcohol, or any recreational drug. The medication can be taken orally 30 to 60 minutes before engaging in any sexual activity with a glass of water. However, be sure to swallow it whole. Never chew or crush the medication.