Erectile dysfunction drugs are a booming market for pharmaceutical companies. All three major varieties on the market–Viagra (sildenafil), Cialis (taldanafil), and Levitra (vardenafil)–have several million prescriptions written every year, numbers that continue to grow. Although these drugs have all been approved by the Food and Drug Administration (FDA), they have many dangerous, potentially deadly side effects.
Because the main effect of these drugs is to dilate blood vessels, it can lead to a potentially serious decrease in blood pressure. The dip is small, and generally transient, but for people with heart risks, it can be dangerous. For those taking heart medications, the interaction with erectile dysfunction drugs can be dangerous.
Transient vision effects like a blue tinge to vision are seen more often with Viagra, but may be seen with other erectile dysfunction drugs. But Viagra, Cialis, and Levitra all seem to be equally likely to induce the potentially serious loss of vision known as non-arteritic anterior ischemic optic neuropathy (NAION), in which a person suddenly loses half or all of one’s vision in one or both eyes. Although no causal relationship has been established, there seems to be a temporal relationship between the onset of NAION and the use of erectile dysfunction drugs.
Hearing loss has also been reported among a small number of users of these drugs. The hearing loss is sudden, involving one or both ears. In most cases, it occurs after taking the first dose of the drug. According to clinical trials, it seems to occur in about 1 every 5000 patients. Currently, there is no explanation for the mechanism of hearing loss. Sometimes, the hearing loss is permanent.
All of these side effects showed up during clinical trials, but manufacturers decided to market these dangerous drugs anyway. If you suffered a dangerous heart attack, other cardiovascular event, or sensory loss as a result of taking Viagra, Cialis, or Levitra, please schedule a drug litigation consultation with the Columbus, Ohio law firm of Robert W. Kerpsack Co., L.P.A. today.