Viagra or Cialis?

There are always debates on what erectile dysfunction pills are more effective: Cialis or Viagra. Since a matter of happy sexual life is of a great concern, one may find lots of Viagra vs Cialis reviews speaking for this or that medication. The truth is each medication may work differently for each patient, so it’s up for a person to decide which one to give preference to. The comparative table below is to give you a broad picture of Viagra vs Cialis pills.




Used for the treatment of erectile dysfunction and pulmonary heart disease

Used for the treatment of erectile dysfunction and pulmonary heart disease


The most popular ED pills since 20 million men world-wide entrusted their sex problems to Viagra

Work good for men for whom Viagra failed. Cialis is getting more popular these days due to its long-lasting effect


A blue rounded film-coated diamond pill with pfizer logo on one side and dosage on the other

An orange film-coated pill of an almond shape with a capital ‘C’ and dosage on one side

How fast the response is?

It is said it takes from 30 min to 120 min. However, many men claimed it took them 20 min.

Has the fastest response among ED pills – within about 15 minutes

How long do the effects last?

The effects last about 4 hours

Has the most long-lasting effect – up to 36 hours


25 mg, 50 mg and 100 mg

5 mg, 10 mg and 20 mg

Generic name

Sildenafil citrate


How long is it on the market?

Since March 1998

Since November 2003

When to take?

From 30 min to a hour before having sexual intercourse

Any time, not less than 15 min before sex

How taken?

With or without food, not more than once a day

With or without food, not more than once in 36 hours

Now when there is the information presented in a handy way to see the difference between Viagra vs Cialis pills, it’s up to any man and his healthcare specialist to decide what is the most suitable medication for him. However, there is a range of things to take into account before taking Cialis or Viagra medication. They are common side effects and conditions when taking pills may be unsafe.

Most common side effects

According to Cialis vs Viagra reviews both medications are tolerated well in patients of different age, but once they occur it’s better to be aware of them beforehand. Both Cialis and Viagra may cause
  • facial flushing

  • headache

  • upset stomach

  • dizziness

  • chest pain

  • low blood pressure

In most cases these are mild and shortlived side effects that last not longer than a few hours. Clinical studies showed that frequency of aftereffects tend to decrease in a course of time meaning that patients experiencing mild side effects when they just started taking impotence pills wouldn’t have any problems with them over time. Experience has proven that men rarely give up taking medications because of side effects. In most cases they may shift from Viagra pills to Cialis or vice verse.

When taking ED pills may be unsafe

Even though the cases of side effects are rare to occur for some men with certain health problems erectile dysfunction medications may not be safe. Don’t take Cialis or Viagra if you have:
  • Heart disease or had a stroke within the last 6 months

  • Uncontrolled blood pressure that jumps from low to high and vice verse

  • Kidney disease when dialysis is required

  • Cirrhosis or any other severe liver disease

  • Eye problems or your family had serious eye diseases that include retinitis pigmentosa

ED pills may not be mixed well with other medications so if you take any drugs or supplements you must tell your doctor about that to lesses the risk of any serious problems.