Men diagnosed with erectile dysfunction, being psychologically and physiologically stressed, oftentimes face a dilemma associated with the choice of a proper treatment. The three major drugs that are used to treat erectile dysfunction are cialis, levitra and viagra.

Cialis, Levitra and Viagra work by a similar mechanism to cause erections. Although the drugs are considered rival phosphodiesterase type 5 (more often referred to as PDE-5) inhibitors, they do have a number of differences, which generally determine the choice of a given man.

Levitra (Vardenafil) works a little longer than Viagra (Sildenafil). They both take effect in about 30 minutes. With Levitra, the effects last for about 5 hours. With Viagra, the effects last approximately 4 hours.

Cialis (Tadalafil) works a bit faster (within about 15-20 minutes), and the effects last much longer — up to 36 hours in some cases. Cialis is often called “the weekend pill” due to its long lasting effect.

The dosage and use of the drugs should also be taken into account when choosing the right treatment. Viagra is available in 25, 50, and 100 mg tablets, with new starters generally using 50 mg pills. Although it is recommended to take Viagra 1 hour prior to sex, the drug actually can be used anytime from 4 hours to 30 minutes before sex. Cialis, which is available in 5, 10, and 20 mg pills, can be taken anywhere from 30 minutes to 12 hours before sexual activity. Both drugs are available in soft form, meaning that they can be used as promptly as 10-15 minutes prior to sex.

When making a choice between cialis, levitra or viagra, possible side effects are not traditionally perceived as a determining factor since they are analogous. They might include headaches, vertigo, dizziness, stomach aches, diarrhea, stuffy or runny nose, and changes in vision.

When deciding on cialis, levitra or viagra, men are suggested to carefully weigh the drugs’ characteristics in order to set the priorities and make the right choice.