Fildena CT 50 mg works by relaxing the blood vessels in the penis, increasing blood flow, and helping men achieve and maintain an erection when sexually aroused. It does not cause an erection on its own but works in response to sexual stimulation.  Some telehealth services allow you to consult a doctor online and receive prescriptions for medications like Fildena CT 50 mg. Be sure to use reputable and licensed online healthcare services to ensure you’re receiving proper medical advice and quality medications.