Filitra (vardenafil), a medication used to treat erectile dysfunction, should be used cautiously in certain patients who require close monitoring. Patients with cardiovascular conditions—such as recent history of heart attack, stroke, or unstable angina—should be monitored due to the potential for cardiac stress during sexual activity.

Those with liver or kidney impairments may experience altered drug metabolism, increasing the risk of side effects. Patients on Filitra medications that affect the cytochrome P450 3A4 enzyme, especially nitrates or alpha-blockers, require careful supervision to avoid dangerous interactions. Additionally, individuals with anatomical penile deformities or those prone to priapism should be observed to prevent complications. Regular monitoring ensures both efficacy and safety.