A recent study evaluated the use of sildenafil (Viagra) for preventing sexual side effects when taken after radiation therapy for prostate cancer. Participants were treated with sildenafil for 6 months and evaluated for 2 years. Erectile function questionnaire scores were significantly higher in the group who received sildenafil, suggesting an overall improvement in sexual satisfaction in these individuals.
Two studies evaluated the potential side effects of proton therapy for prostate cancer using quality-of-life scores. Urinary and bowel scores were similar to those of healthy men and satisfaction rates were high. Sexual function was affected, but results may be related to other factors.