Erectile Dysfunction and Herbal Viagra Alternatives,Over ten million men suffer from Erectile Dysfunction (also called impotence)... they experience trouble having and keeping an erection of the penis. Herbeena Herbal Viagra a prescription drug, has been prescribed by many health care practitioners in response to Erectile Dysfunction. If the nerves or blood vessels associated with this function aren't working properly, a man may have trouble getting an erection. Herbeena Herbal Sex Tonic increases blood flow to the penis, so that when a man is sexually aroused, he can get and keep an erection.