title: Effect of sildenafil citrate (viagra) on the ocular circulation.
authors.forename: Sohan
authors.initials: S
authors.lastname: Singh Hayreh
mesh_terms: D000818:Animals; D001775:Blood Circulation / Q000187:drug effects; D001783:Blood Flow Velocity / Q000187:drug effects; D019842:Ciliary Arteries / Q000187:drug effects; D005123:Eye / Q000098:blood supply*; D006801:Humans; D017078:Laser-Doppler Flowmetry; D008297:Male; D009898:Optic Disk / Q000098:blood supply; D010726:Phosphodiesterase Inhibitors / Q000494:pharmacology*; D010879:Piperazines / Q000494:pharmacology*; D011687:Purines; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D010726:Phosphodiesterase Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate