NEW YORK (Reuters Health) - Viagra (sildenafil) taken at bedtime may worsen breathing problems in patients with severe obstructive sleep apnea, results of a study published in the Archives of Internal Medicine suggest.>>> Discuss This Story
NEW YORK (Reuters Health) - Viagra (sildenafil) taken at bedtime may worsen breathing problems in patients with severe obstructive sleep apnea, results of a study published in the Archives of Internal Medicine suggest.>>> Discuss This Story
