Cyclic guanosine monophosphate (GMP) is usually a chemical in Your system that relaxes the muscles inside the penis and improves blood stream into your penis. With ED, this action isn’t Doing the job correctly, so that you can’t have or sustain an erection.Öte yandan her ?ey ordinary bir seyirde ilerliyorsa e?er three ayda bir tane olacak ?eki