Compare Viagra, Levitra, Cialis
When a man can't get an erection to have sex or can't keep an erection long enough to finish having sex, it's called erectile dysfunction. Erectile dysfunction is the preferred term rather than the more commonly used term of impotence. Sexual dysfunction is often associated with disorders such as diabetes, hypertension, coronary artery disease, neurologic disorders, and depression. In some patients, sexual dysfunction may be the presenting symptom of such disorders. Additionally, ED is often an adverse effect of many medications.
Although there are a number of options available for non-surgical treatment of sexual dysfunction, it is clear that oral therapy has revolutionized the treatment approach to men with erectile dysfunction.
The FDA approved Viagra in 1998, and it became the first oral therapy for erectile dysfunction on the market. Vardenafil hydrochloride (Levitra) was approved in September, 2003, and Tadalafil (Cialis) was approved in November, 2003. Viagra, Levitra and Cialis work in much the same way. These PDE-5 inhibitors share many similarities, but they have differences as well.
Although sildenafil citrate (Viagra), vardenafil HCl (Levitra) and tadalafil (Cialis) sometimes are called sexual enhancers, they do not directly cause an erection of the penis, but alter the body's response to sexual stimulation by enhancing the effect of the nitric oxide, a chemical that is normally released during stimulation. Nitric oxide causes relaxation of the muscles in the penis, which allows for better blood flow to the penile area.
PDE-5 inhibitors can be used to treat sexual dysfunction caused by high blood pressure, problems affecting nerve function, prostate surgery, side effects of medicines, emotional or psychological ED. Although they work in the similar way, they are not the same in all respects. Sildenafil and vardenafil have similar molecular structures, but tadalafil is structurally different.
From a safety perspective, all three Viagra, Levitra and Cialis share similar drug interactions involving CY3A4 inhibitors and a contraindication in the use of nitrates. The side effects are similar for all three PDE-5 inhibitors and include headache, flushing, nasal congestion, and dyspepsia.
Which is better Viagra, Cialis or Levitra?
Cialis clearly works for 36 hours or more, making it an ideal choice for men who are very sexually active.
For men who develop angina and therefore might require an organic nitrate (such as nitroglycerine), the longer duration of action is a disadvantage. Also, some people are uncomfortable having the active ingredient in their system for an extended period of time.
Levitra works a little longer than Viagra, and gives a quite sufficient window of effectiveness for spontaneous sexual experience. Vardenafil is the most potent molecule of all PDE-5 inhibitors and works better in hard-to-treat cases of impotence .
Viagra clearly works for women with sexual arousal disorder .
Implicit advantage of Viagra: Many men have been ordering high-dose pills and splitting them, because Pfizer's Viagra blue pills are pretty large (14mm) and easy to split.
Levitra, a small hard orange 8mm pill, is much more difficult to cut. Cialis 12mm pills are also inconvenient to split because of their asymmetrical almond shape.
Keep in mind that you don't have to make a definitive choice and stay on one ED medication all the time. You can choose all three and alternate between them depending on your requirements. For example, Viagra or Levitra on weekdays and Cialis on weekend or holiday.
Last Updated: December 14, 2013