The most commonly reported side effects in patients treated with Cialis during the testing of the product were:. Patients who get back pain and muscle aches usually get them 12 to 24 hours after taking Cialis and these usually go away by themselves within 48 hours. A small number of patients taking Cialis also reported abnormal vision. What should I talk to my doctor about when considering if Cialis is right for me? FDA encourages anyone aware of a serious side effect, including consumers or patients, to make a MedWatch report.
You can report an adverse event either online, by regular mail or by fax, using the contact information at the bottom of this page.
Index to Drug-Specific Information. What is Cialis used to treat? Cialis is approved for the treatment of men who experience difficulty having and maintaining an erection impotence.
Cialis works by enhancing the effects of one of the chemicals the body normally releases into the penis during sexual arousal. This allows an increase of blood flow into the penis. An erection is the result of an increase in blood flow into certain internal areas of the penis. Cialis is different from other currently approved products for ED in that it stays in the body longer. However, there were no studies that directly compared the clinical efficacy and safety of Cialis to other products.
Another form of low blood pressure is orthostatic hypotension, which is characterized by a sudden decline in blood pressure that happens when a person stands up from a sitting or lying position.
While often harmless, producing little more than lightheadedness, orthostatic hypotension can result in serious consequences depending on its cause. In the study mentioned above that focused on this issue, tadalafil was found to have no clinically relevant effects on orthostatic hypotension.
Most common side effects of Cialis are temporary and will abate within a few hours or days after discontinuing the medicine. Some, like headache, back pain, and muscle pain were the main reasons a small number of people in the initial clinical trials stopped using Cialis. Other side effects, such as severe allergic reactions, prolonged erections, priapism, hearing loss, and cardiovascular events require immediate medical attention and may require long-term attention.
Severe but rare possible adverse events such as damage to erectile tissues due to priapism, hearing loss, heart attack, or stroke may have lifelong consequences. Cialis may not be the right drug for all men, particularly because of its effects on the cardiovascular system. Cialis is contraindicated for men:. Some people can take Cialis but may have medical conditions that require caution, that is, careful monitoring and a possible dose reduction.
These include:. According to DailyMed , patients with cardiovascular conditions such as amyocardian infarction, angina, hypotension, stroke or uncontrolled arrhythmias at present, or the recent past, should not take Cialis because no clinical studies have been conducted to evaluate safety and efficacy.
The recreational use of Cialis and other erectile dysfunction medications EDMs is surprisingly high, particularly among young men who are sexually active. There is some uncertainty that medications like tadalafil cause physical dependency, tolerance, or withdrawal. Many men abusing EDMs also use recreational drugs that can cause erectile dysfunction, making chronic use of EDMs necessary.
Highly active sexual lifestyles may also necessitate chronic or high-dose use of EDMs. Drugs like Cialis that do not cause physical dependence or withdrawal can still result in abuse and behavioral dependence.
In some cases, the recreational use or misuse of tadalafil can certainly justify a diagnosis of substance abuse disorder. Successfully ending the misuse may require therapy. Cialis is never to be given to people younger than the age of The manufacturer does not recommend dosage adjustment based on age alone. However, the full picture of age and other conditions should be taken into account when deciding on the appropriate dosage of Cialis.
Cialis can be taken with or without food. However, that does not mean that Cialis can be taken with all foods. It takes longer for the body to break down the drug, so the concentration of tadalafil in the blood goes up, making side effects more likely.
Men taking tadalafil should also limit alcohol intake. Sarazan RD et al. Absence of clinically important HERG channel blockade by three compounds that inhibit phosphodiesterase 5—sildenafil, tadalafil, and vardenafil.
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