Cialis Side Effects

Most people tolerate Cialis well. When side effects do occur, they are usually minor. A few common Cialis side effects include headache, facial flushing, and indigestion. Among the uncommon side effects of Cialis are high blood pressure, insomnia, and blurred vision.

An Introduction to Cialis Side Effects

As with any medicine, there are possible side effects with Cialis® (tadalafil); but not everyone who takes Cialis will experience side effects. In fact, most people tolerate Cialis well. When people do develop Cialis side effects, in most cases they are minor. Often they require no treatment or are easily treated by you or your healthcare provider. In previous research studies, up to 3.1 percent of people taking Cialis stopped taking their medicine because of side effects.
 
(The side effects discussed below are not a complete list of side effects reported with Cialis. Your healthcare provider can discuss a more complete list of Cialis side effects with you.)
 

Common Side Effects of Cialis

Cialis has been studied extensively in clinical trials, with over 5,700 people having been evaluated. In these studies, side effects are always documented. Based on these studies, common Cialis side effects, occurring in more than 2 percent of people, include:
 
  • Headache -- up to 15 percent of people
  • Facial flushing -- up to 3 percent of people
  • Indigestion, known as dyspepsia -- up to 10 percent of people
  • Back pain -- up to 6 percent of people
  • Nasal congestion -- up to 4 percent of people
  • Muscle pain (known as myalgia) -- up to 4 percent of people
  • Pain in the arms or legs -- up to 3 percent of people.
     

Rare Cialis Side Effects

During clinical studies, there were a number of other side effects that occurred in less than 2 percent of people while they were taking Cialis. It is difficult to tell whether these side effects occurred because of Cialis or something else.
 
Some of these possible Cialis side effects include but are not limited to:
 
  • Angina
  • High blood pressure (hypertension)
  • Dry mouth
  • Insomnia
  • A spinning sensation (vertigo)
  • Unexplained rash
  • Blurred vision
  • Other vision problems, such as seeing a blue tinge to objects or difficulty telling the difference between blue and green
  • A sudden decrease in or loss of hearing
  • Migraines
  • Prolonged erection lasting longer than four hours
  • Painful erection lasting more than six hours (priapism).
     
In rare cases, there have also been serious problems occurring in the heart, brain, or blood vessels. These include:
 
In these cases, most of the people had cardiovascular risk factors. Also, the side effects occurred during or shortly after sexual activity. For these reasons, it is difficult to tell whether the problems were related to the Cialis, the person's existing risk factors, sexual activity, or a combination of these things.
 
(Click Cialis Precautions and Warnings for more information.)
 
In people taking PDE5 inhibitors, including Cialis, there have been rare cases of a condition called non-arteritic anterior ischemic optic neuropathy (NAION). This condition can lead to sudden loss of vision in one or both eyes (see Cialis and Blindness). If you notice any unexplained changes in your vision while taking Cialis, report them to your healthcare provider immediately.
 
There have been reports of transient global amnesia possibly due to Cialis. Transient global amnesia is a temporary loss of short-term memory. People may not remember recent events and have an impaired ability to form new memories. It usually lasts 24 hours or less and typically has no long-term consequences.
 
 
The Dirty, Messy Part of BPH

Cialis (Tadalafil) Medication Information

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