A case report in the BMJ describes the development of epileptic seizures in a healthy 60 year old man following high doses of oral vardenafil (Levitra®). He had been prescribed 10mg for sexual dysfunction, but because of lack of efficacy, he had increased the dose himself to 40mg. Three hours later, he had a tonic-clonic seizure, and was admitted to hospital. Neurological and cardiac tests were all normal. He was told to stop using vardenafil. Two months later he had a new tonic-clonic seizure 4 hours after taking 30mg of vardenafil. At 8 months’ follow-up, he was seizure-free without treatment. The authors note that convulsions were not reported to Bayer during clinical trials of vardenafil. However, people on sildenafil have had seizures. In addition, recent evidence indicates that…