Viagra (sildenafil) is one of the most well-known products for treating erection problems, generating about $500 million in revenue worldwide in 2019. Many men use it to improve their performance, but not everyone considers how alcohol might affect its results.
A drink before intimacy might seem harmless, but it’s worth understanding how alcohol and Viagra interact. Could alcohol make the medication less effective? Are there any risks to be aware of?
This article explains what happens when you mix Viagra and alcohol, the possible risks, and how to stay safe. Knowing what to expect can help you use Viagra with confidence while avoiding potential risks.
Can you take Viagra while drinking alcohol?
Yes, you can take Viagra while drinking alcohol, but it’s not recommended, especially in large amounts. Both Viagra and alcohol affect blood pressure, and when combined, they can increase the risk of dizziness, fainting, or a more dangerous blood pressure drop.
How much alcohol is safe?
According to dietary guidelines for Americans, moderate alcohol consumption is defined as up to 2 drinks per day for men. A standard drink includes:
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- 12 ounces of beer (5% alcohol)
- 5 ounces of wine (12% alcohol)
- 1.5 ounces of distilled spirits (40% alcohol)
In clinical trials, researchers administered 0.5 g/kg of alcohol, reaching a mean maximum blood alcohol level of 0.08% (the legal limit in the US), in healthy individuals taking 50 mg of Viagra.
The combination led to a systolic blood pressure (top number) drop of 18.5 mmHg, compared to 17.4 mmHg with alcohol alone. Diastolic blood pressure (bottom number) dropped by 17.2 mmHg, versus 11.1 mmHg with alcohol alone.
To put 0.5 g/kg of alcohol into perspective, the number of drinks varies based on your body weight. In the US, one standard drink contains about 14 grams (0.014 kg) of pure alcohol. Here’s a general estimate:
| Body Weight (lbs) | Body Weight (kg) | Alcohol (g) at 0.5 g/kg | Approx. Number of Standard Drinks |
|---|---|---|---|
| 120 lbs | 54 kg | 27 g | ~2 drinks |
| 150 lbs | 68 kg | 34 g | ~2.5 drinks |
| 180 lbs | 82 kg | 41 g | ~3 drinks |
| 200 lbs | 91 kg | 46 g | ~3.5 drinks |
| 220 lbs | 100 kg | 50 g | ~3.5-4 drinks |
So, 0.5 g/kg of alcohol is roughly equivalent to 2-4 standard drinks, depending on your body weight.
None of the participants experienced dizziness, fainting, or sudden drops in blood pressure (orthostatic hypotension). This suggests that moderate alcohol intake may not pose a significant concern when combined with a 50 mg dose of Viagra.
However, the risk increases with higher alcohol consumption or a higher Viagra dose. The diastolic blood pressure already showed a considerable drop in this study, so avoiding excessive alcohol intake with Viagra is advisable.
Additionally, the trial was conducted on healthy individuals, and if you have underlying health conditions, your risk may be significantly higher.
How long after taking Viagra can you drink alcohol?
There’s no strict rule on when to drink alcohol after taking Viagra, but if you plan to drink, limit yourself to 1-2 drinks and wait at least an hour to allow the medication to be absorbed.
Viagra typically starts working within 30 to 60 minutes, with some studies reporting erections occurring as early as 12 minutes after taking it. The medication remains effective for about 4 hours, but traces can stay in your system for up to 24 hours.
Additionally, Viagra is meant for occasional use, so you may not always know in advance when you’ll be taking it. If you’ve already had a few drinks, you might want to reconsider taking Viagra, as it can increase the risk of side effects.
For optimal results, it’s best to avoid alcohol entirely or wait until Viagra has fully cleared from your system before drinking.
Since everyone’s body reacts differently, it’s best to consult your healthcare provider to determine when it’s safe for you to drink.
What are the combined side effects of Viagra and alcohol?
Drinking alcohol while taking Viagra may increase side effects like:
1. Headaches
Headaches are a common side effect of taking Viagra, and they tend to happen more often with higher doses. However, the exact reason why sildenafil causes headaches isn’t fully understood.
In one case, a patient took two 50-mg doses of sildenafil (Viagra) on two consecutive days and had a cluster headache attack. Since he had no common headache triggers, doctors believed sildenafil was the cause.
Alcohol can also cause headaches in two ways:
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- Migraine attacks: These may start within 30 minutes to three hours after drinking. Retrospective studies show that about one in three people with migraines say that alcohol triggers their attacks.
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- Delayed alcohol-induced headache (DAIH): This is also called a hangover headache and happens hours later.
Research suggests that alcohol can also trigger other types of primary headaches, including cluster headaches, tension headaches, and various forms of migraines. When combined with Viagra, both alcohol and Viagra may increase the risk and severity of headaches.
2. Flushing
In clinical trials, up to 18% of Viagra users experienced facial flushing. This happens because Viagra widens blood vessels, increasing blood flow to the face, neck, and chest. Alcohol has a similar effect, which means drinking and taking Viagra can make flushing more intense and noticeable.
Flushing is usually not dangerous, but it can be uncomfortable. You may feel warm, red, or sweaty, especially after drinking alcohol or in hot environments.
3. Dyspepsia
Both Viagra and alcohol can affect your digestive system.
Research has shown that dyspepsia (indigestion) is one of Viagra’s most frequently reported side effects. This may be due to its effects on gastric motility, as it relaxes smooth muscle cells in the stomach. This relaxation can lead to delayed gastric emptying, making you feel full, bloated, or uncomfortable.
Alcohol can also contribute to digestive issues by irritating the stomach lining, increasing acid production, and slowing digestion. One study found that people who consumed more than seven alcoholic drinks per week had a 2.3 times higher risk of indigestion and a 1.5 times higher risk of frequent stomach pain.
If you have a sensitive stomach, these effects may be more pronounced.
4. Nasal Congestion
Viagra and alcohol’s effects on blood vessels include those in your nasal passages. By relaxing and dilating these vessels, they can cause swelling and obstruction. When taken together, their combined effects may intensify nasal congestion.
Within just two hours of drinking, participants in one study experienced increased nasal congestion and reduced airflow.
Another study found that alcohol can cause symptoms like a stuffy nose, sneezing, and even wheezing. Among alcoholic drinks, red wine was the biggest trigger, affecting 83% of people, while white wine caused symptoms in 31%.
If you already have allergies or respiratory conditions, drinking alcohol while taking Viagra may worsen nasal congestion.
5. Nausea and Dizziness
Aside from their effects on the digestive system, which can cause nausea, both Viagra and alcohol influence the central nervous system (CNS) in ways that can further increase the risk of dizziness, lightheadedness, and nausea, especially when taken together.
However, nausea and dizziness can also be symptoms of low blood pressure, which poses an even greater risk.
Can alcohol make erectile dysfunction (ED) worse?
Yes. Many people believe that alcohol enhances sexual arousal by lowering inhibitions and reducing anxiety. You might feel more confident, flirtatious, and excited after drinking, which is why alcohol is often called a “social lubricant.”
However, research suggests that chronic alcohol use can have the opposite effect, leading to decreased sexual arousal. Alcohol’s depressant effects on the central nervous system can cause:
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- erectile dysfunction
- delayed ejaculation
- difficulty reaching orgasm
In a recent study, lack of sexual desire was the most common form of sexual dysfunction associated with alcohol use.
Another study looked at whether quitting alcohol could help men with alcohol use disorder improve ED. After three months without drinking, 88.5% of them saw improvement. Younger men, those who drank less over time, and those without alcoholic liver disease showed the most progress.
So, while alcohol might make you feel more turned on in the moment, too much of it can make it harder for your body to perform sexually over time.
Who should avoid alcohol while on Viagra?
For some people, the combined side effects from Viagra and alcohol can be more severe than for others. Some men should never mix Viagra and alcohol, including:
1. People with heart conditions
As mentioned earlier, both Viagra and alcohol lower blood pressure.
People with heart failure or cardiomyopathy already struggle with circulation. A sudden drop in blood pressure from Viagra and alcohol can make it even harder for the heart to pump blood efficiently, increasing the risk of lightheadedness, fainting, or, in extreme cases, a heart attack.
Additionally, nitrates (like nitroglycerin) are commonly prescribed for angina (chest pain) and other heart conditions. The combination of Viagra and nitrates alone can cause a life-threatening drop in blood pressure. Adding alcohol to the mix only heightens the risk.
Alcohol also increases heart rate and may trigger irregular heart rhythms, which is especially risky for those with heart disease. For individuals with a weakened heart, this added stress can lead to chest pain, palpitations, or worsening heart failure symptoms.
2. Men with liver or kidney problems
The body processes Viagra through the liver and kidneys. If these organs aren’t working properly due to liver disease, kidney disease, or heavy alcohol use, Viagra might stay in the body longer, leading to stronger effects or side effects.
In people with severe kidney disease (creatinine clearance below 30 mL/min), Viagra levels in the blood were found to be about twice as high as normal.
For those with mild to moderate liver impairment (Child-Pugh Class A or B), Viagra levels were also elevated, with 47% higher peak levels and 85% greater overall exposure. The effects of Viagra in people with severe liver disease (Child-Pugh Class C) have not been studied.
3. Older adults
As people age, their bodies process medications more slowly.
In healthy adults aged 65 and older, studies showed that their bodies process Viagra more slowly, leading to higher drug levels in the blood. Compared to younger adults (18-45 years), older adults had:
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- 84% more sildenafil in their bloodstream
- 107% more of the substance the body creates when breaking down Viagra
Since older adults also have less protein in their blood to bind the drug, the amount of unbound, active Viagra was about 50% higher than in younger adults. This higher availability of Viagra can enhance its effects, but it also increases the risk of side effects like dizziness, headaches, or low blood pressure.
If you’re unsure whether it’s safe for you, talk to your doctor before mixing alcohol and Viagra.
Which ED treatments work safely with alcohol?
ED treatments that are less likely to be affected by alcohol include:
1. Vacuum Erection Devices (VEDs)
These are mechanical pumps that help men achieve an erection without medication. It works by creating a vacuum around the penis, which pulls in blood and makes it firm. A tight ring is then placed at the base of the penis to maintain the erection.
These devices work well for 70% to 80% of users, but many patients are not satisfied with the results. Still, they remain a safe, effective, and noninvasive option for those who find them practical.
More importantly, this method is completely drug-free, making it safe for men who drink alcohol, as there are no risks of interactions or side effects related to blood pressure.
2. Testosterone Therapy (for low testosterone-related ED)
ED and low testosterone are separate conditions, but they can sometimes occur together. Studies show that 2.1% to 21% of men with ED also have low testosterone.
In these cases, doctors may prescribe testosterone therapy in the form of injections, skin patches, or gels. While testosterone therapy does not immediately trigger an erection like other treatments, it can improve energy levels, increase sexual desire, and help with overall sexual performance.
However, excessive drinking can still reduce testosterone levels, which may counteract the benefits of the treatment.
3. Penile Implants (Surgical Option)
For men with severe ED who do not respond to other treatments, a penile implant may be an option. This involves a small device being surgically placed inside the penis, allowing a man to have an erection whenever needed.
Many patients with this condition may not want surgery, but penile implants have a high satisfaction rate of around 90%. However, long-term use drops, with only 41% still using their implant after 20 years.
Some implants are inflatable, while others can be manually adjusted to a straight or bent position as needed. Since these implants do not rely on blood flow or medications, they do not interact with alcohol in any way.
4. Penile Arterial Surgery
This surgery, also called penile revascularization, improves blood flow to the penis by bypassing or repairing damaged arteries. It works similarly to heart bypass surgery but on a smaller scale. A healthy artery, usually taken from the lower abdomen or leg, is connected to the penile arteries to restore circulation.
This procedure is rarely performed, as it applies to only about 5% of ED cases. It is typically considered for younger men under 30 whose ED is caused by an injury or a blocked artery rather than age-related or systemic vascular issues.
Since the surgery physically restores blood flow rather than relying on medication, it does not cause the drop in blood pressure that can happen with Viagra and alcohol.
Some options are more complex and may not be the best fit. If you’re considering other ED treatments, talk to your healthcare provider. It’s also important to discuss any underlying health conditions that could be contributing to ED.
Bottom Line: Can you take sildenafil with alcohol?
You can take Viagra with alcohol, but it’s not recommended. Both lower blood pressure and drinking too much increase the risk of dizziness, fainting, and other side effects like headaches, flushing, indigestion, and nausea.
Moderate drinking (up to two drinks) is unlikely to cause serious issues with a 50 mg dose, but higher alcohol intake makes side effects worse. If you have heart, liver, or kidney problems, or are older, the risks are even higher.
If you drink often, alcohol itself may contribute to erectile dysfunction. Other ED treatments, such as vacuum pumps and penile implants, don’t carry the same concerns as Viagra when alcohol is involved. Talk to a doctor if you’re unsure.
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