Serious Side Effects of Cialis
By Christie Nicholson, J.D. | Legally reviewed by Oni Harton, J.D. | Last reviewed February 03, 2024
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Cialis (tadalafil) is an erectile dysfunction drug. It's a popular PDE5 inhibitor. Millions of Americans have benefited from the drug since Eli Lilly and Company introduced it in 2003. But like many other prescription drugs, Cialis carries certain health risks. Unfortunately, in some cases, the health consequences of taking this medication have been quite severe. The most significant is the risk of melanoma or skin cancer.
Here, we'll discuss the medical complications experts have linked to Cialis. We'll also discuss recent news about this erectile dysfunction (ED) medication, including updates on various Cialis lawsuits.
What Is Cialis?
Cialis (tadalafil) is a popular erectile dysfunction drug. It helps males with the inability to achieve or maintain a normal erection by increasing blood flow to the penis. Eli Lilly and Company manufactures Cialis. The Food and Drug Administration (FDA) approved the drug in 2003. The drug competes with Pfizer's Viagra (sildenafil citrate). But don't confuse Cialis with the discontinued ED drug – Levitra.
The FDA later approved Cialis for treatment in men with an enlarged prostate. The FDA also approved the use of Cialis to treat erectile dysfunction and an enlarged prostate simultaneously in men who suffer from both conditions.
Side Effects of Cialis
Like most drugs, Cialis has several side effects. Most of these are minor. Unfortunately, for people with a heart condition, these side effects can be severe.
Common side effects of Cialis include:
- Headaches
- Back and muscle pain
- Chest pain
- Painful erections
- Vision problems
For patients who take nitrates for heart disease or heart failure, there's an increased risk of the following:
- Heart attack
- Stroke
- Heart failure
- Fainting
- Sudden drop in blood pressure
Patients with the following conditions should avoid taking Cialis. Make sure you tell your doctor if you suffer from the following:
- Stroke
- Recent heart failure
- High blood pressure
- Liver problems
- Kidney disease
- Bleeding problems
- Peyronie's disease
- Angina
- Pulmonary arterial hypertension
Always talk to your doctor about any new drug you plan on taking. They will advise you of any side effects or health risks. This is especially true when it comes to PDE drugs. While the risks may seem minor, for certain patients, they can be life-threatening.
Cialis and Loss of Vision
One of the more severe complications of taking Cialis is vision loss. Patients have reported sudden vision loss after taking Cialis and other erectile dysfunction drugs.
Sudden loss of vision can be a symptom of non-arteritic anterior ischemic optic neuropathy (NAION). In some cases, NAION can lead to permanent loss of vision. You and your family members must monitor your health while taking Cialis. If you notice any changes in your vision, see your healthcare provider immediately.
The FDA has also reported sudden hearing loss in men who have taken Cialis and other erectile dysfunction drugs. Because Cialis patients are often older men, the hearing loss may be age-related.
Researchers have yet to establish that Cialis causes hearing loss. Still, Cialis patients who experience hearing loss should contact their doctor as soon as possible.
Cialis and Skin Cancer
In 2014, JAMA Internal Medicine published a study showing that Viagra may cause skin cancer. According to the study, men who had taken Viagra and other ED drugs were 84% more likely to develop melanoma, the most dangerous type of skin cancer.
Experts have warned not to take the results of this study to heart. Some researchers say that there is a correlation between Viagra and melanoma but that there is no proof that the drug causes skin cancer. It just shows that men who took an ED drug happened to develop melanoma at some point.
Recent Cialis Lawsuits and Multi-District Litigation
In March 2018, two plaintiffs filed suit against Pfizer and Eli Lilly. They argued that they developed skin cancer after taking Viagra and Cialis, respectively. The federal courts consolidated more than 1,000 melanoma product liability lawsuits. Judge Richard Seeborg oversaw the multi-district litigation (MDL) in San Francisco, California.
In 2019, the defendants' attorneys argued there wasn't sufficient evidence linking their ED drugs to skin cancer. They asked the judge for a summary judgment in favor of the drug manufacturers. Such a ruling would effectively end the litigation in favor of the drug manufacturers.
In April 2020, the U.S. District Court Judge Seeborg issued his ruling. He agreed with the defendants and dismissed the MDL.
What To Do if You or a Loved One Become Sick After Taking Cialis
If you or a loved one becomes sick after taking Cialis or another ED drug, seek immediate medical attention. You should also consult a product liability attorney to review your case. Depending on the nature and severity of your injuries, you may have a legal claim against Eli Lilly. Find a personal injury lawyer near you today.
Next Steps
Contact a qualified product liability attorney to make sure your rights are protected.
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