Viagra and Cialis are some of the most known drugs for treating erectile dysfunction. These drugs are medicines thus they have side effects as well as contraindications. Used mostly as a sexual enhancement any of the two drugs can be used as treatment in other kind of diseases. When used to treat impotence, one should know that they do not give one an erection by just taking them. These drugs work when the man is sexually excited. Since impotence can produce psychological traumas it is a plus for men who need it to be able to buy Viagra online or look for the cheapest Cialis.



People who take drugs or use any kind of medicine that contain nitrates should not take any of the two drugs. Anyone can buy Viagra online, but not anyone should be taking it. The same is valid for Cialis and searching this drug online one might have the surprise of finding the cheapest Cialis. Any man, who suffered a stroke, had a heart attack, had kidney or liver problems or is allergic to any of the ingredients contained in the drugs, should refrain from taking them. Also Viagra and Cialis should not be taken in the same time. Taking any sexual enhancement drugs without being prescribed can be life threatening especially if one is taking other prescribed medication. One should keep in mind that some medicines change the way Viagra works. Just because you think you have some sexual dysfunction and you can buy Viagra online it does not mean you should start taking it.

Both Viagra and Cialis come in different doses and finding the right dose for you is important. Furthermore when you buy them you can choose the amount of pills you want to buy. Because both of them can be brand drugs as well as generic drugs the price can vary. The price also differs from vendor to vendor. As usual most of the time the online pharmacies and other sites selling Viagra and Cialis are cheaper than the traditional pharmacies. The dosage they can be found in are 25 mg, 50 mg or 100 mg. The doctor should be the one that determine the exact dosage you need. In certain cases, like for example if you are older then 65, the doctor will usually prescribe you the lowest dosage and change it later if needed. The prescribed dosage should not be taken more than once a day and in some cases more then once in 48 hours. Since Viagra as well as Cialis are sexual enhancement drugs they should be taken about an hour before the sexual act.

Both of the drugs have side effects. The most common side effects are headache, flushing of the face, back pain, indigestion, muscle aches and upset stomach. These side effects should not last for more than a few hours. If they do one should check out with his doctor immediately. The same is valid in case of an overdose. Some of these side effects are more likely to occur with higher doses. If after taking a sexual enhancement like Viagra or Cialis, one has an erection that lasts for more then four hours; one should immediately contact his doctor. Failure to do so might result in permanent damage in which case no drug will help anymore.