What Are the many Differences Between Cialis, Levitra, and Viagra?

There are only 3 oral drugs approved by the Federal DA to treat erectile dysfunction: Cialis, Levitra, and Viagra. All works by increasing the current flow of blood into the penis so that when a man is sexually stimulated, he can get an erection.

Cialis, Levitra & Viagra do work by a similar mechanism to cause erections. There are futile differences in how long the drug works and how quickly it works. Levitra online works a lot longer than Viagra. They both drugs take effect in about 30 minutes. With Levitra online, the effects last for about 5 hours. With online Viagra, the effects last approximately 4 hours.

Cialis works a bit faster (within about 15 minutes), and the effects last much longer -- up to 36 hours in some cases.If One of These Drugs Isn’t Effective for Erectile Dysfunction, Can I Try Another?Yes, but because these drugs work the same way, it’s unlikely that you’ll have success with one if you’ve failed to achieve an adequate erection with another.

What real precautions Should I ever Take Before Taking One of These Drugs? There will be certain situations in which these drugs may not be safe to take. Before taking them, tell your doctor: If you are allergic to any drugs, including Viagra or other ED medications. About any popular prescription or nonprescription medications you were currently taking, including herbal and dietary supplements.  The common combination of Cialis, Levitra and/or Viagra with these drugs can cause dangerously low blood pressure. The usual combination of Cialis or Levitra with these drugs can also cause dangerously low blood pressure.

In addition always follow the given directions on your prescription label carefully and ask your doctor or pharmacist to explain any part that you do not understand. Take these drugs exactly as directed. Do not take more or less or take it more often than prescribed by your doctor. Do not take these drugs more than once a day.

Who Should Not Take Cialis, Levitra or Viagra? If you have suffered from a heart attack, stroke or life threatening arrhythmia (irregular heart rate) within the last 6 months you should discuss other options with your doctor. It is also advised, to avoid those drugs if you have uncontrolled high or low blood pressure or if you experience chest pain with sex.

What Are the real Side Effects in humans of Cialis, Levitra and Viagra? Side effects in humans are not really common but they can occur. Side effects can include: Headache, Upset stomach, Nasal congestion, Changes in vision & Back pain.