what is viagra used for

Oral medications are often the first origin of treatment for erectile dysfunction. For most men who have distress keeping an erection supreme tolerable for sex (erectile dysfunction), these medications pretense skillfully and cause few side effects.
Sildenafil (Viagra), vardenafil (Levitra, Staxyn), tadalafil (Cialis) and avanafil (Stendra) are oral medications that reverse erectile dysfunction by enhancing the effects of nitric oxide, a natural chemical your body produces that relaxes muscles in the penis. This increases blood flow and allows you to get an erection in recognition to sexual stimulation.
Although they do its stuff in thesame ways, each oral medication has a slightly interchange chemical makeup. These pubescent differences statute the habit each medication works, such as how speedily it takes effect and wears off, and the potential side effects. Your doctor will rule these factors as with ease as extra conditions you have and possible interactions bearing in mind additional medications you take.
Sildenafil (Viagra). This medication is most effective later than taken upon an empty belly one hour before sex. It’s practicing for four to five hours or more if you have serene to ascetic erectile dysfunction.Vardenafil (Levitra, Staxyn). This medication then is most operating later than taken one hour before sex and can be taken similar to or without food. A high-fat meal might keep it from consuming as quickly.Vardenafil is on the go for four to five hours or more if you have mild to sober erectile dysfunction. A newer form of the drug that dissolves upon the tongue might decree faster than the pill that you swallow.
Tadalafil (Cialis). This medication is taken when or without food virtually one to two hours before sex. It’s keen for up to 36 hours. It can be taken in a little dose daily or in a larger dose as needed.
Avanafil (Stendra). This medication is taken like or without food 30 minutes in the past sex, depending upon the dose. It lasts taking place to six hours.
Because these drugs are similarly effective, the American studious of Physicians recommends that the other be based upon your preferences, including cost, ease of use, how long the drug’s effects last and side effects. There are generic viagra caverta versions of sildenafil, vardenafil and tadalafil available.