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Cialis Increases Testosterone?

April 7th, 2009 · No Comments

Victor Conte is of course referring to “Viagra.” Like Viagra, Cialis also is used to treat erectile dysfunction. What’s the difference between the two? Although Viagra and Cialis both work by inhibiting an enzyme called phosphodiesterases which increase vasodilatation; there are pharmacologic distinctions between Viagra and Cialis being that Cialis has a longer half-life (17.50 hours) — compared to Viagra (4.0–5.0 hours) and Levitra (4.0–5.0 hours) — resulting in longer duration of action14, and so partly responsible for “The Weekend Pill.” Cialis molecular structure differs significantly from Viagra, one of the benefits of Cialis is there are no visual side effects like Viagra and an absence of effect of food on absorption.

Nitric Oxide is a hot topic of debate in bodybuilding, as NO producing supplements are always one of the top selling products. Being in touch with many bodybuilders and powerlifters, many swear that by taking Cialis they get better pumps in the gym and can recuperate from exercise faster. Many suspect its enhanced nutrient delivery or some other mechanism. Cialis demonstrates similar vasodilator (blood pressure lowering) effects in healthy subjects when compared with Viagra in studies of 10-mg or 20-mg doses (mean systolic blood pressure reduction, of ~4.3 mg) 12. Many of the experts in sport will attest that Nitric Oxide only increases performance in environments with low oxygen availability such as high altitude training or areas with air high pollution. Brazilian Eduardo de Rose, president of the medical commission of the Pan-American Sports Organization stated in a recent interview, “Scientifically, the only proof that Viagra improves sports performance happened at high altitude. That is why it was decided not to include it in the banned substance list. You will hardly get to play a football match on Mount Everest.” If there are no performace enhacing effects, than why were Olympic athltetes using it? There have only been a handful of studies on the performance enhancing effects of Cialis and sports performance and none yielded beneficial effects:

? In one study, 14 healthy young males whom were given a 20 mg dose of Cialis or a placebo and performed a maximal exercise test on a treadmill. The study found that a single does of Cialis had no effect on exercise performance, exercise tolerance, or cardiopulmonary responses5.

? The second study involved three “all out” sprints to determine if Cialis could increase anaerobic threshold. The study found no significant differences in peak power, average power, or fatigue index compared to a placebo. One positive finding noted was that Cialis decreased the time to reach peak power. The author concluded, “Cialis did not have an effect on peak power, but time to peak power output was reduced. Only sports that needs to reach maximum power output in a few seconds could Cialis administration be beneficial.13”

Bodybuilders are known for bring cutting edge pharmacology to the forefront of science. If NO (Nitric Oxide) products really don’t work, then why do so many people use them? Given that the second study reported that the author claimed that Cialis may increase peak force, the powerlifters that swear by Cialis increasing performance may be on to something that research has not discovered yet.

Tags: Anabolic Steroids · General

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