Tadalafil and Alcohol: NHS Safety Guide | Cured Pharmacy

Clinically Proven UK Registered Pharmacy

Is Tadalafil Safe with Alcohol? NHS Guidance

UK-registered clinical team
Confidential and secure
No GP visit needed
Fast and discreet delivery
Start Your Free Consultation

Takes less than 2 minutes to complete 100% online

Ednew 20% off for new customers
Genuine Products
UK-licensed only
Fast Delivery
Next-day available
Expert Advice
UK pharmacists
Man using Cured Pharmacy online consultation for erectile dysfunction treatment
£9.99 From £7.99 20% discount using discount code Ednew
LIVE PRICING

Our Pricing

Pricing Disclaimer: Prices on some pages may not be up to date — the live pricing table below and pricing shown during consultation are official current prices and take precedence over any other figures on the site.

Sildenafil - UK-licensed prescription Treatment
Treatment

Sildenafil

From £0.45

Future orders save 5%
Start Assessment
Tadalafil - UK-licensed prescription Treatment
Treatment

Tadalafil

From £9.99

Future orders save 5%
Start Assessment
Sildenafil Eropid - UK-licensed prescription Treatment
Treatment

Sildenafil Eropid

From £8.99

Future orders save 5%
Start Assessment
Tadalafil (Teva) - UK-licensed prescription Treatment
Treatment

Tadalafil (Teva)

From £9.99

Future orders save 5%
Start Assessment
Avarante Tablets Tadalafil Tablets 10mg - UK-licensed prescription Treatment
Treatment

Avarante Tablets Tadalafil Tablets 10mg

From £11.49

Future orders save 5%
Start Assessment
Viagra Connect 50mg - UK-licensed prescription Treatment
Treatment

Viagra Connect 50mg

From £11.49

Future orders save 5%
Start Assessment

Tadalafil and Alcohol: What You Need to Know

Understanding the interaction between tadalafil and alcohol is essential for safe and effective treatment of erectile dysfunction. Whilst moderate alcohol consumption is generally considered safe with tadalafil, excessive drinking can significantly reduce the medication's effectiveness and increase the risk of side effects [1]. At Cured Pharmacy, our UK-registered clinical team provides evidence-based guidance to help you make informed decisions about combining tadalafil with alcohol.

How Tadalafil and Alcohol Interact in Your Body

Tadalafil works by relaxing blood vessels and increasing blood flow to the penis, helping men achieve and maintain an erection when sexually stimulated [1]. The medication belongs to a class of drugs called phosphodiesterase type 5 (PDE5) inhibitors and remains active in your system for up to 36 hours, earning it the nickname 'the weekend pill'.

Alcohol is a central nervous system depressant that can impair sexual function independently of any medication [2]. When you drink alcohol, it temporarily reduces blood flow throughout your body, including to the penis, which directly counteracts tadalafil's mechanism of action. This means that whilst tadalafil and alcohol don't create a dangerous chemical interaction, alcohol can significantly diminish the medication's effectiveness.

Both tadalafil and alcohol cause blood vessels to dilate, which is why combining them can lead to additive effects on blood pressure [1]. In most men consuming moderate amounts, this presents minimal risk, but excessive alcohol intake alongside tadalafil may cause dizziness, headaches, or an increased heart rate.

NHS Guidance on Safe Alcohol Limits with Tadalafil

The NHS recommends that men limit alcohol consumption to no more than 14 units per week, spread across at least three days, regardless of whether they're taking erectile dysfunction medication [3]. When considering tadalafil and alcohol together, clinical guidance suggests staying well within these limits to optimise treatment outcomes.

For practical purposes, one to two standard drinks (approximately 1-2 units of alcohol) is generally considered safe when taking tadalafil, subject to individual tolerance and prescriber approval [2]. A standard drink in the UK is defined as a small glass of wine (125ml at 12% ABV), half a pint of standard-strength lager, or a single measure of spirits.

Excessive alcohol consumption—typically defined as more than five units in a single session—can significantly impair erectile function and should be avoided when planning to use tadalafil [3]. Our superintendent pharmacist Tarun Kumar advises patients that the best results with tadalafil occur when alcohol intake is minimal or avoided entirely during sexual activity.

Individual Risk Factors to Consider

Your personal tolerance to alcohol and tadalafil may differ from general guidance based on factors including age, body weight, liver function, and cardiovascular health. Men over 65, those with existing heart conditions, or individuals taking multiple medications should exercise particular caution when combining tadalafil and alcohol, as they may be more susceptible to side effects [1][2].

Side Effects of Mixing Tadalafil and Alcohol

The most commonly reported side effects when combining tadalafil and alcohol include headaches, dizziness, flushing, and nasal congestion [1]. These symptoms occur because both substances cause blood vessels to dilate, creating an additive effect that can be more pronounced than either substance alone.

Orthostatic hypotension—a sudden drop in blood pressure when standing up—is a particular concern when drinking alcohol whilst taking tadalafil [2]. This can manifest as light-headedness, blurred vision, or in rare cases, fainting. The risk increases with higher alcohol consumption and is more common in men who are dehydrated or who stand up quickly after sitting or lying down.

Gastrointestinal symptoms including indigestion, nausea, and upset stomach may also be exacerbated when tadalafil is combined with alcohol [3]. Both substances can irritate the stomach lining, and alcohol may increase stomach acid production, making these side effects more likely or severe.

When to Seek Medical Attention

Whilst most side effects from combining tadalafil and alcohol are mild and temporary, you should seek immediate medical attention if you experience chest pain, severe dizziness, vision changes, or an erection lasting more than four hours (priapism). These symptoms require urgent assessment regardless of alcohol consumption [1].

Treatment Active Ingredient Duration of Action Starting Price
Tadalafil Tadalafil Up to 36 hours From £9.99
Sildenafil Sildenafil citrate 4-6 hours From £0.45
Viagra Connect Sildenafil citrate 4-6 hours From £11.49
Cialis Tadalafil Up to 36 hours From £53.00

Does Alcohol Reduce Tadalafil Effectiveness?

Clinical evidence demonstrates that alcohol consumption can significantly impair erectile function independently of any medication [2]. In studies examining sexual performance, men who consumed more than three alcoholic drinks showed measurably reduced erectile quality compared to those who abstained or drank moderately.

Whilst tadalafil remains pharmacologically active in your system regardless of alcohol intake, the physiological effects of alcohol work against the medication's intended benefits [1]. Alcohol reduces testosterone production, impairs nerve signalling required for arousal, and decreases blood flow—all factors that counteract tadalafil's mechanism of improving erectile function.

For optimal results with tadalafil, limiting alcohol to one or two drinks maximum is advisable, with many clinicians recommending complete abstinence on occasions when you plan to use the medication [3]. Patients in clinical trials who avoided alcohol reported higher satisfaction rates and better treatment outcomes compared to those who consumed alcohol regularly.

Tadalafil Dosing Considerations with Alcohol

Tadalafil is available in the UK in doses ranging from 2.5mg for daily use up to 20mg for on-demand treatment [1]. The interaction between tadalafil and alcohol doesn't significantly change based on your prescribed dose, but higher doses may produce more pronounced side effects when combined with drinking.

Men taking the daily low-dose tadalafil formulation (2.5mg or 5mg) should maintain consistent alcohol habits throughout their treatment, as the medication builds to steady levels in your bloodstream [2]. Sudden increases in alcohol consumption whilst on daily tadalafil may trigger side effects even if you've previously tolerated the medication well.

For on-demand tadalafil (10mg or 20mg taken as needed), timing your dose relative to alcohol consumption can help minimise interactions. Taking tadalafil at least two hours before or after drinking may reduce the likelihood of additive blood pressure effects, though this approach doesn't eliminate alcohol's negative impact on erectile function [3].

Adjusting Your Treatment Plan

If you find that alcohol consumption is regularly interfering with your tadalafil treatment effectiveness, speak with your prescriber about alternative approaches. Some men benefit from switching to a different PDE5 inhibitor with a shorter duration of action, whilst others may need to address underlying lifestyle factors affecting erectile function beyond medication alone.

Getting Tadalafil Treatment at Cured Pharmacy

Cured Pharmacy offers genuine UK-licensed tadalafil from £7.99, with transparent upfront pricing and a free online consultation that takes under three minutes to complete. All prescriptions are reviewed by our UK-registered clinical team, ensuring you receive appropriate treatment tailored to your individual health profile and lifestyle factors, including alcohol consumption habits.

During your consultation, you'll be asked about your typical alcohol intake, as this information helps our prescribers determine whether tadalafil is suitable for you and provide personalised guidance on safe use. We also offer alternative erectile dysfunction treatments including sildenafil (from £7.99) and branded options, all subject to clinical assessment by a UK prescriber.

Every order from Cured Pharmacy includes 100% discreet packaging and free delivery, with medications dispensed by our GPhC-registered pharmacy (registration number 9012511) under the supervision of superintendent pharmacist Tarun Kumar (GPhC 2233073). You can contact our clinical team on (+44) 116 4646009 if you have questions about tadalafil and alcohol or any aspect of your treatment.

Scientific References

  1. NHS. (2024). Tadalafil: a medicine for erection problems (erectile dysfunction). NHS UK. https://www.nhs.uk/medicines/tadalafil/
  2. Kloner, R. A., et al. (2018). Cardiovascular Effects of the Phosphodiesterase-5 Inhibitors. Journal of Cardiovascular Pharmacology and Therapeutics, 23(4), 300-309. https://doi.org/10.1177/1074248418769163
  3. NHS. (2023). Alcohol support. NHS UK. https://www.nhs.uk/live-well/alcohol-advice/

Information on this page is for educational purposes only and is not medical advice. All prescription treatments require clinical assessment by a UK-registered prescriber. Always consult a qualified healthcare professional before starting any new medication.

How it Works?

Select from our recommended UK-licensed medications.

1

Choose your treatment

Step 1: Choose your treatment from Cured Pharmacy

Select safe UK treatments. Quick answers.

2

Answer quick questions

Step 2: Answer quick consultation questions

We will deliver direct to you as quickly as tomorrow.

3

Get it delivered fast

Step 3: Fast discreet delivery to your door

Start Your Assessment For Erectile Dysfunction

Start your journey to better health today.

  • Reviewed by UK-based prescribers
  • Takes under 3 minutes
  • Discreet Packaging

Start Your Journey To Better Health Today

Once you complete a short online assessment you will be able to choose your preferred treatment from safe medically approved options tailored to you.

Start My Assessment

Returning Customer?

Log in to Your Account

Faq

Can you drink alcohol with tadalafil?
Yes, moderate alcohol consumption (one to two standard drinks) is generally considered safe with tadalafil, though excessive drinking can reduce effectiveness and increase side effects. The NHS recommends staying within the 14 units per week guideline regardless of medication use.
How much alcohol is safe with tadalafil?
Clinical guidance suggests limiting alcohol to one or two units when taking tadalafil to minimise the risk of side effects and maintain treatment effectiveness. Excessive alcohol (more than five units in one session) should be avoided as it significantly impairs erectile function.
What happens if you drink too much alcohol with tadalafil?
Excessive alcohol combined with tadalafil can cause pronounced dizziness, headaches, low blood pressure, and reduced medication effectiveness. Both substances dilate blood vessels, creating additive effects that may lead to orthostatic hypotension or fainting in some men.
Does tadalafil and alcohol cause dangerous interactions?
Tadalafil and alcohol don't create a dangerous chemical interaction in most healthy men, but combining them increases the risk of side effects like dizziness and low blood pressure. Men with cardiovascular conditions should exercise particular caution and consult their prescriber before mixing the two.
How long after taking tadalafil can I drink alcohol?
There's no specific waiting period required after taking tadalafil before drinking alcohol, but limiting consumption to one or two drinks is advisable throughout the medication's 36-hour duration of action. Spacing tadalafil and alcohol by at least two hours may help reduce additive blood pressure effects.
Will alcohol stop tadalafil from working?
Whilst alcohol doesn't chemically deactivate tadalafil, it significantly impairs erectile function through reduced blood flow, decreased testosterone, and impaired nerve signalling. Many men find tadalafil less effective when consuming more than two alcoholic drinks.
Is daily tadalafil safe with regular alcohol consumption?
Daily low-dose tadalafil (2.5mg or 5mg) can be taken safely by men who drink within NHS guidelines of 14 units per week, spread across multiple days. However, regular heavy drinking may reduce treatment effectiveness and increase the risk of side effects.
Can you take tadalafil after drinking alcohol?
Yes, you can take tadalafil after drinking alcohol, but effectiveness may be reduced if you've consumed more than one or two drinks. For best results, many clinicians recommend taking tadalafil before drinking or limiting alcohol consumption entirely when planning sexual activity.