The Risks of Cocaine Use
Cocaine is a highly addictive drug derived from the plants of the South American coca plant. It’s the most commonly used stimulant in the UK; the latest data shows 2.9% of UK adults use cocaine. The UK also reports the highest levels of crack cocaine problems across all of Europe.
Cocaine works by boosting the amount of dopamine, a natural chemical messenger, within areas of the brain responsible for reward and pleasure. Usually, this cycle ends naturally by shutting off the signal between nerve cells, but cocaine stops this communication, essentially flooding the system with dopamine.
This reinforces cocaine misuse and over time the reward circuit may become used to this stimulation and become less sensitive, which is why people with cocaine addiction may end up taking stronger, more frequent doses to feel the same high.
In the short-term, cocaine may cause you to feel extremely happy, more energetic, mentally bright and hypersensitive to your senses.
However, it can also lead to less pleasant side effects and dangerous health problems like seizures, heart attacks, strokes, mood issues, and more.
Using cocaine can prove fatal too, and overdose deaths are rising. The latest ONS data from 2020 showed 777 deaths involving cocaine, which is 9.7% more than in 2019 and five times as many deaths compared with a decade ago.
Clearly, cocaine use is problematic, but it becomes even more dangerous when mixed with other drugs and medications. In this article, we look at the risk of mixing Viagra and cocaine.

What Is Viagra?
Viagra is the brand name for sildenafil, a medication most commonly used to treat erectile dysfunction (ED) by improving blood flow. Viagara is also prescribed in lower doses under different brand names, such as Revatio, for treating pulmonary arterial hypertension, a condition involving high blood pressure in the vessels supplying the lungs.
Sildenafil belongs to a class of medications called phosphodiesterase type 5 (PDE5) inhibitors. In the treatment of ED, it works by increasing blood flow to the penis during sexual stimulation, making it easier to achieve and maintain an erection. For pulmonary hypertension, it helps to relax blood vessels in the lungs, easing the strain on the heart and improving exercise capacity.
Viagra is available as tablets, chewable tablets, and oral liquid. It can be prescribed by a healthcare professional or purchased over the counter at a pharmacy in some cases, depending on the dosage and the individual’s health status.
Like all medications, Viagra can cause side effects. According to the NHS, common side effects (affecting more than 1 in 100 people) include:
- Headaches
- Nausea
- Facial flushes
- Dizziness
- Upset stomach
- Nasal congestion
In rare cases, more serious reactions may occur. Around 1 in 1,000 people may experience changes in vision, a prolonged and painful erection (known as priapism), or seizures. These require urgent medical attention.
Although uncommon, severe allergic reactions can also occur. Symptoms such as rash, difficulty breathing, or chest tightness should be treated as emergencies, and immediate care should be sought.
Viagra is generally safe when used as prescribed, but it may not be suitable for everyone. A healthcare professional can help assess whether it’s appropriate based on your health history and any medications you’re taking.
Can You Mix Viagra & Cocaine?
Cocaine is a stimulant known for increasing sexual drive and sensory pleasure. However, despite this initial effect, it can impair the ability to achieve or maintain an erection – a common issue among men who use the drug recreationally. To counteract this, some men choose to take Viagra alongside cocaine in an attempt to restore sexual performance.
This combination, however, is not only medically unsafe, it’s potentially dangerous. Mixing Viagra with cocaine carries a range of serious health risks and may increase the likelihood of developing psychological dependence on the combination. The pattern of use can become especially problematic when individuals begin to associate the mixture with confidence, pleasure, or intimacy.
While the non-prescribed use of Viagra in recreational settings has been documented since at least the 1990s, growing awareness of its risks has led clinicians to strongly advise against combining it with any illicit substances, particularly stimulants like cocaine.
Dangers of Mixing Viagra & Cocaine
Despite its reputation in party scenes – and even the nickname ‘sextacy’ – combining Viagra with cocaine is far from harmless. The interaction between the two drugs can place severe strain on the cardiovascular system, nervous system, and mental health. There are several important medical reasons to avoid this combination, whether used occasionally or regularly.
Priapism
Priapism is a prolonged and often painful erection that lasts for hours and isn’t related to sexual stimulation. If left untreated, it can lead to permanent damage to the penis. Cocaine has been associated with priapism due to its ability to interfere with blood flow and nerve signalling. When combined with Viagra, a drug that enhances blood flow to the penis, the risk may increase. This dangerous combination can disrupt normal blood circulation in the penis and raises the likelihood of developing priapism, which requires emergency medical treatment.
Cardiovascular Problems
Both cocaine and Viagra can significantly affect your heart and blood vessels, but in very different ways. Cocaine stimulates the heart, raises blood pressure, constricts blood vessels, and can trigger arrhythmias. Viagra, meanwhile, relaxes and dilates blood vessels, lowering blood pressure. When taken together, this creates a dangerous imbalance in the cardiovascular system. The body may struggle to regulate blood flow and blood pressure, increasing the risk of serious events such as heart attacks, strokes, or aortic dissection (a tear in a major artery). Research has documented these life-threatening complications in people who combined cocaine with sildenafil (the active ingredient in Viagra), highlighting the real dangers of this drug interaction.
Neurological Risks
Using Viagara and cocaine together poses serious risks to the brain. Cocaine can cause seizures, agitation, and confusion, especially in high doses or when mixed with other drugs. Adding Viagra into the mix may heighten the risk of neurological side effects by further destabilising the body’s blood pressure and oxygen levels, which can affect brain function. The combination is unpredictable and dangerous, especially when taken in uncontrolled or recreational settings.
Psychological Risks: Dependence & Addiction
Although Viagra is not considered physically addictive, it can lead to psychological dependence, particularly when used by men who do not have a diagnosed need for it. Some men begin to associate Viagra with confidence or performance, making it difficult to engage in sexual activity without it. When combined with a powerful stimulant like cocaine, the psychological link can become even stronger. People may start to rely on the combination to feel desirable, confident, or in control. This can create a cycle of repeated use, which carries serious mental and physical health risks. Over time, this behaviour may impact not just sexual health, but self-esteem, relationships, and overall well-being.
Why Younger Men Are Not Safe From Viagra’s Health Risks
Viagra is often thought of as a treatment for older men with erectile dysfunction, but younger men are increasingly using it recreationally, usually without medical advice. This trend is concerning, especially when Viagra is taken in combination with substances like cocaine. While it may be used to boost sexual confidence or performance, taking Viagra without a clinical need may carry long-term risks. But it might be worth exercising caution around this trend.
Research suggests that up to 9% of young men use PDE5 inhibitors like Viagra without a prescription, but there is still limited understanding of how these medications affect healthy individuals over time. What we do know is that combining them with stimulants increases the risk of both psychological dependence and serious physical side effects. For anyone considering taking Viagra, especially alongside other drugs, it’s important to seek professional medical advice rather than self-medicate.
References
- Altman AL, Seftel AD, Brown SL, Hampel N. Cocaine associated priapism. J Urol. 1999 Jun;161(6):1817-8. PMID: 10332443.
- McCAMBRIDGE J, MITCHESON L, HUNT N, WINSTOCK A. The rise of Viagra among British illicit drug users: 5-year survey data. 2009 May. https://doi.org/10.1080/09595230500537167
- Rosalijn Both (2016) A matter of sexual confidence: young men’s non-prescription use of Viagra in Addis Ababa, Ethiopia, Culture, Health & Sexuality, 18:5, 495-508, DOI: 10.1080/13691058.2015.1101489
- Famularo G, Polchi S, Di Bona G, Manzara C. Acute aortic dissection after cocaine and sildenafil abuse. 2001 Jul. DOI:https://doi.org/10.1016/S0736-4679(01)00345-6
- John R. Richards, Dariush Garber, Erik G. Laurin, Timothy E. Albertson, Robert W. Derlet, Ezra A. Amsterdam, Kent R. Olson, Edward A. Ramoska & Richard A. Lange (2016) Treatment of cocaine cardiovascular toxicity: a systematic review, Clinical Toxicology, 54:5, 345-364, DOI: 10.3109/15563650.2016.1142090
- Fernando Korkes, André Costa ‐ Matos, Renato Gasperini, Pedro V. Reginato, Marjo D.C. Perez, Recreational Use of PDE5 Inhibitors by Young Healthy Men: Recognizing This Issue Among Medical Students, The Journal of Sexual Medicine, Volume 5, Issue 10,2008, Pages 2414-2418, ISSN 1743-6095, https://doi.org/10.1111/j.1743-6109.2008.00792.x.