Viagra can last up to 4 hours and it has a 70% success rate. Whilst its effectiveness is moderate at 60-70%, it remains popular with increasing dependency to treat ED for millions of men.
Studies showed Viagra does not have any statistically significant effects on sperm count, sperm motility or sperm concentration.
On the downside, it has plenty of side effects that warrant attention. Regular long-term consumption of Viagra brings more danger and risks, and this has brought global attention in recent years.
Consumers are shifting to natural viagras such as Tongkat Ali, reported as a better option due to proven clinical tests that improve men’s fertility and libido.
In the latest findings published in the Journal Frontiers of Neurology, patients taking Viagra can a person’s sight to turn blue, abnormally dilate pupils, drive light sensitivity, and blur vision for days. This remains true when the drug is out of a person’s system.
Lets get more insights on the side effects of viagra and other health risks.

Source: Data compiled from WebMD, UK Medicines & Healthcare Regulatory Authority (MHRA), Skin Cancer Foundation and other credible sources.
Viagra Side Effects
The sildenafil compound in Viagra was originally developed by Pfizer for the treatment of hypertension (high blood pressure) and angina pectoris (chest pain due to heart disease).
When used to treat Erectile Dysfunction (ED), you may experience notable and unavoidable side-effects.
Here are the common side effects taken from Viagra’s official website:
- An erection that will not go away (priapism)
- Sudden vision loss in one or both eyes
- Sudden hearing decrease or hearing loss
- Mild or severe headache
- Mild or severe diarrhea
- Nasal Congestion
- Nosebleeds
- Indigestion
- Muscle pain
- Flushing
The side-effects from Viagra varies from mild to severe – thus can potentially be detrimental to health depending on your past and present health condition.

Reported Cases and Fatalities
We investigate data from the UK Medicines & Healthcare Regulatory Agency (MHRA) on cases related to Viagra (including similar generic viagra products which contains sildenafil) up to 31st Dec 2019.
Here is what we found:
- Total cases reported – 2580
- Total Adverse Drugs Reactions (ADR) cases – 1341
- Total fatality cases – 169
The recorded adverse cases related to Viagra consumption are predominantly from the following side-effects:
- Cardiac disorders – 292 cases
- Eye disorders – 193 cases
- Nervous system disorders – 324 cases
- Gastrointenstinal disorders – 131 cases
Based on the above statistics, the percentage of fatality cases for Viagra (as a ratio of total cases) is relatively high at 6.5%.
On contrary, there have been no reported cases or fatalities for those consuming natural viagras or natural herbs such as Tongkat Ali.

Viagra and Cancer
One of the side-effects of Viagra that gained worldwide attention is the risk of developing cancer known as melanoma based on evidence found in recent studies.
Study on 25,848 men using Viagra (sildenafil) showed higher risk of developing melanoma. Melanoma is a major public health problem, with 76,000 estimated new cases each year in the United States.
Here are quick facts on melanoma taken from the Skin Cancer Foundation.
- The survival rate of melanoma patient is 63%
- 192,310 cases of melanoma will be diagnosed in the U.S. in 2019 / 2020.
- 95,830 cases will be noninvasive and confined to the top layer of skin (in situ)
- 69,480 cases will be invasive, penetrating into the skin’s second layer.
A 2014 report published in the Journal of American Medical Association linked Viagra use with elevated melanoma risk, news which prompted the FDA to put Viagra and similar drugs on a “watch list” of drugs that had possible safety risks.
Could this safety risk contribute to Viagra’s declining sales?
Viagra Death Cases
Here are reports and news headline related to deaths which were allegedly linked to ED drugs (including but not limited to Viagra).
The death cases may be linked to other unknown health conditions, so please do not panic.
Nonetheless, the effect of Viagra on your health from near to medium term vis-à-vis the current reported side effect cases and links to cancer warrant your attention.

Lawsuits on Viagra
There were 800 to 1000 lawsuits filed on Viagra-related cases through the federal court in the United States. Globally, there are more underreported lawsuits on Viagra, spanning 20 years of use.
Most of the lawsuits are not reported by the media, hidden away from the public.
As of April 2019, there more than 900 melanoma lawsuits remained pending in the federal court in the Northern District of California alone.
You can refer to the lawsuits against Viagra here.
The high number of lawsuit cases begs the question of the safety of Viagra and how it has impacted people’s lives across the world.
Here are some of the major high-profile lawsuits on Viagra.
- Hearing Loss – In 2007, the Food and Drug Administration requested modification of Viagra’s label to include a warning about sudden hearing loss. This came after 29 reported cases of men suffering unexpected hearing loss and lawsuits against Pfizer.
- Vision Loss – Despite Pfizer’s claim that Viagra does not cause blindness, men who experienced sudden vision loss after taking the drug also filed lawsuits against the manufacturer. At one point, the FDA reported 38 cases of Viagra users suffering from a condition called Non-Arteritic Ischemic Optic Neuropathy (NAION) that caused vision loss.
- Heart Issues – Some of the first lawsuits against the makers of Viagra involved heart issues. As a result of the sudden drop in blood pressure, Viagra had been linked to possible heart complications like cardiac arrest.
- Melanoma – The Viagra Melanoma Lawsuit is Case No. 3:18-cv-02139-RS in the U.S. District Court of the Northern District of California, San Fransisco Division.
FDA Safety Warnings on Viagra
Here are announcements from the USFDA on Viagra since 2005 to tighten regulations on safety.
- October 2005:A petition required a black box warning for erectile dysfunction drugs Sildenafil (Viagra), Tadalafil (Cialis) and Vardenafil (Levitra). Though less severe warnings had already been added, a black box was not added.
- 2005:The FDA ordered to add a warning to the drug’s label about vision loss.
- October 2007: Changes were requested in the label to include warnings about sudden hearing loss associated with the drug when 29 reports of patients who experienced sudden hearing loss within hours to two days of taking Viagra were received.
- 2012:The FDA advised that Revatio (Sildenafil) should not be prescribed to children ages 1 through 17 for pulmonary arterial hypertension (PAH), or high blood pressure in the blood vessels leading to the lungs.
- 2014:The FDA issued an update and clarification of its earlier recommendation suggesting that it was up to the health care professionals to consider whether the benefits of treatment are likely to outweigh the potential risks to their patients.
- 2019-2020: The FDA is yet to recall Viagra from the medical market.
Parting Thoughts
Viagra has been monopolizing men’s health for decades. However, Viagra is recording declining sales due to increasing side effects, lawsuits, multiple health warnings and health risks.
Recent healthcare professionals are beginning to express their concerns about Viagra considering its side effects and health risks. And long-term use of Viagra can potentially increase the risk of psychological dependency too.
Recreational use of ED medications increased the chance of psychological dependence on ED medicines.
Dr. Christopher Harte - VA Boston Healthcare System
On that note, this video by Dr. James Meschino will also provide more insights on Viagra, Cialis, Levitra, and other herbal alternatives.
If you are curious how natural viagra such as Tongkat Ali compares to Viagra, Cialis or even Levitra, do visit check out our article here.
As a word of advice, if you are using Viagra or even natural viagra, please consult your nearest doctor or and bring this discussion on board with family and friends. Ultimately, the final decision is entirely in your hands!
Are you seeking alternatives? Read more about top natural viagras from herbal remedies that are used to treat EDs and improve libido here.

Naressa Khan contributes regularly on AKARALI. As a researcher and investigative journalist specializing in nutrition and natural wellness, Naressa is all about creating, deconstructing, and reassembling meaningful content through words and facts. With this approach always in mind, she eagerly explores the nuances in life via the aspects of lifestyle, culture, travel, health, and wellness in Malaysia .
Disclaimer:
The content published on this website is for educational purposes and should not be viewed, read, or seen as a prescription or constitute any form of medical advice. We recommend you consult your nearest GP or doctors before consuming Tongkat Ali or any products which contain Tongkat Ali. For further information, kindly refer to our Frequently Asked Questions (FAQ) for more information.
3 Responses
Very well articulated, specific and with great learning points in terms of Viagra side-effects. Thank you very much for your research job. This is really intelligible! Please do making more blogs like this piece. This is really helpful than doctors who are partially saying the fact and also shoving you to make a decision so that the drug companies will avail more than you in the end.
Great read, interesting and informative article. Highly worth the read. I was never quite sure of Viagra or it’s side effects but this has really helped open up a new world to me. I look forward to reading more articles like this. 🙂
Upon reading this article, it is quite scary how much adverse effect viagra can have on our health for the name of sex performance. Personally for me, apart from having a healthy lifestyle and diet, I aid it with natural supplements such as tongkat Ali in my coffee. Have been doing for months, all I can say is, although natural herbs don’t work as fast as chemical drugs Viagra, is it much better for the long terms on our health.