What is Erectile Dysfunction Pill?
In addition to Viagra, other ED drugs available in the United States include avanafil (Stendra), tadalafil (Cialis), and vardenafil (Levitra).
These all improve the blood supply to the penis. In combination with sexual stimulation, the drugs can produce an erection sufficient to initiate and complete intercourse.
Erectile Dysfunction Pills In South Africa
Viagra is the most effective treatment for erectile dysfunction, but it also has a higher rate of side effects than other options, according to an analysis of more than 150 trials.
Other options
Viagra is known generically as sildenafil. Men concerned about possible side effects of Viagra like headaches, flushing, indigestion, and nasal congestion may want to start on Cialis, which is known generically as tadalafil, researchers report in European Urology. If that’s not effective, men in some countries can try Zydena (udenafil).
The new review compares seven common ED therapies, all belonging to a class of medications called phosphodiesterase 5 inhibitors (PDE5i’s). They work by inhibiting an enzyme that may reduce the potency of an erection.
Viagra, Cialis, and Levitra (vardenafil)are all available in South Africa. The additional drugs Zydena, Helleva (lodenafil) and Mvix (mirodenafil) are only approved for use in other countries.
Smaller doses are less effective
A 50- or 100-milligram (mg) dose of Viagra appeared to be the most effective treatment. It performed about 50 percent better than a placebo. Smaller doses were less effective. Stendra, in doses ranging from 50 to 200 mg, was among the least effective – only 20 to 30 percent more effective than a placebo.
The 50-milligram dose of Stendra was associated with the lowest rate of side effects of any medication – 8.5 percent of the time. A 20-mg dose of Levitra had the highest rate of side effects: 25 percent. Higher doses of Viagra and Cialis tended to cause side effects between 21 and 22 percent of the time.
“Viagra has an established efficacy and safety profile and remains an important treatment option for men with erectile dysfunction,” a spokesperson for Pfizer, makers of the drug, told Reuters Health in a statement.
“Viagra has been studied for more than 15 years in more than 136 completed and ongoing clinical trials involving more than 23,000 men with ED.”