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buy propecia pharmacy online cialis online consultation buy cialis buy propecia pharmacy online What Doctors Treat ED? The type of medical specialist who treats ED will depend on the cause of the problem. Based on your family's medical history as well as your own medical history and current health, your doctor may treat you with oral medications such as Viagra or similar drugs. If this fails, he or she may refer you to a urologist or psychologist. free online sample viagra buy viagra buy propecia pharmacy online Lifestyle: smoking is a key cause of erectile dysfunction. Smoking causes impotence because it promotes arterial narrowing. See also Tobacco and health. Understanding Male Sexual Problems -- Symptoms: The symptoms of male sexual problems include: Lack of sexual desire, sexual fantasies, or interest in sexual contact, Inability to have or maintain any erection, Inability to have or maintain an erection sufficient for sexual functioning, Inability to reach an orgasm despite adequate sexual stimulation and signs of arousal, Ability to achieve orgasm only after an unusually lengthy period of stimulation, Ability to achieve orgasm only during masturbation or during oral sex, Ability to achieve orgasm only in situations that are considered bizarre or taboo, such as fetishes, Difficulty controlling the timing of orgasm and ejaculation, so that it occurs very early in sexual contact, leaving the other partner dissatisfied, Lack of ejaculation, Persistent erection, unassociated with sexual desire, Bloody ejaculation, which can be frightening but is usually not serious. Sildenafil is available as oral tablets at doses of 25, 50, and 100 mg. It should be taken approximately one hour before sexual activity. In some men, the onset of action of the drug may be as early as 11-20 minutes. Sildenafil should be taken on an empty stomach for best results since absorption and effectiveness of sildenafil can be diminished if it is taken shortly after a meal, particularly a meal that is high in fat. Modern drug therapy for ED made a significant advance in 1983, when British physiologist Giles Brindley, Ph.D. dropped his trousers and demonstrated to a shocked Urodynamics Society audience his papaverine-induced erection.[33] The drug Brindley injected into his penis was a non-specific vasodilator, an alpha-blocking agent, and the mechanism of action was clearly corporal smooth muscle relaxation. The effect that Brindley discovered established the fundamentals for the later development of specific, safe, orally effective drug therapies.[34][better source needed][35][better source needed] online viagra purchasing buy viagra What are the side effects of vardenafil (Levitra)? Vardenafil is generally well tolerated with only mild side effects. These side effects include headache, flushing, nasal congestion, dyspepsia, body aches, dizziness, nausea, and increased blood levels of the muscle enzyme creatine kinase. What should I do if I develop persistent erectile dysfunction? It is best to see your GP. He or she is likely to discuss the problem, go over any medication you may be taking, and do a physical examination. This can help to identify, or rule out, possible underlying causes. Before treatment, your GP may suggest some tests.