Vardenafil and Simvastatin: Can You Take Them Together?

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Vardenafil and Simvastatin: Understanding the Interaction

Published: 4 November 2026

Many men wonder whether vardenafil and simvastatin can be taken together safely. The good news is that vardenafil, a medicine used to treat erectile dysfunction, does not have a major direct interaction with simvastatin, a statin used to lower cholesterol. However, your prescriber will still check your full medical history and current medicines during a consultation to ensure vardenafil is suitable for you, particularly if you have heart or blood-pressure conditions that may be linked to your statin use.

What is vardenafil and simvastatin used for?

Vardenafil is a prescription medicine used to treat erectile dysfunction (ED) in adult men. It belongs to a group of medicines called PDE5 inhibitors, which work by relaxing blood vessels in the penis, allowing increased blood flow when you are sexually aroused [5]. Vardenafil is the active ingredient in Levitra and is available in 5mg, 10mg, and 20mg tablets. You typically take it about 25 to 60 minutes before sexual activity, and it requires sexual stimulation to work [5].

Simvastatin is a statin medicine prescribed to lower cholesterol and reduce the risk of heart disease and stroke [12]. It works by blocking an enzyme in the liver that produces cholesterol. Many men take simvastatin long-term to manage their cardiovascular risk, particularly if they have high cholesterol, diabetes, or a history of heart problems. Because both heart disease and ED share common risk factors—such as high blood pressure, diabetes, and poor circulation—it is not uncommon for men to be prescribed both medicines [1][2].

Do vardenafil and simvastatin interact with each other?

Vardenafil and simvastatin do not have a significant direct drug interaction that would prevent you from taking them together. Simvastatin is not listed among the medicines that are contraindicated or require major dose adjustments with vardenafil [5][12]. This means that, in general, the two medicines can be prescribed together without a major safety concern related to their chemical interaction.

However, it is important to understand that vardenafil is broken down in the body by an enzyme called CYP3A4, and simvastatin is also processed by the same enzyme [5][12]. While simvastatin does not strongly inhibit or induce this enzyme in a way that significantly affects vardenafil levels, your prescriber will still review your full medication list. If you are taking other medicines that do affect CYP3A4—such as certain antibiotics, antifungals, or HIV medicines—these could interact with vardenafil and require dose adjustments or alternative treatments [5].

The key consideration is not the interaction between vardenafil and simvastatin themselves, but rather the underlying cardiovascular health that led to your statin prescription. Your prescriber will assess whether your heart and blood vessels are healthy enough for sexual activity and whether vardenafil is safe given your overall cardiovascular risk [2][5].

Why your prescriber checks your heart health

If you are taking simvastatin, it is often because you have risk factors for heart disease, such as high cholesterol, high blood pressure, diabetes, or a previous heart event. Sexual activity places extra demand on your heart, and PDE5 inhibitors like vardenafil can cause a small drop in blood pressure [5]. Your prescriber will check that your cardiovascular system is stable enough for sex and that you are not taking any medicines that are contraindicated with vardenafil, such as nitrates (GTN spray, isosorbide mononitrate or dinitrate), nicorandil, riociguat, or amyl nitrites (poppers) [5]. These combinations can cause a dangerous fall in blood pressure and must never be taken together.

What does your prescriber check before prescribing vardenafil and simvastatin together?

During your online consultation at Cured Pharmacy, the prescriber will review your full medical history, current medicines, and any recent changes to your health. They will specifically check for conditions that make vardenafil unsuitable, such as recent heart attack or stroke (usually within the last six months), unstable angina, severe heart failure, very low blood pressure, or a history of sudden vision loss (non-arteritic anterior ischaemic optic neuropathy, or NAION) [2][5].

If you take other blood-pressure medicines alongside your statin—such as ACE inhibitors, angiotensin receptor blockers, calcium-channel blockers, or beta-blockers—the prescriber will consider the combined blood-pressure-lowering effect. Vardenafil can add to this effect, which may cause dizziness or light-headedness, particularly when standing up [5]. This is usually manageable by starting on a lower dose and monitoring how you feel, but it must be declared and assessed.

If you are on an alpha-blocker (such as doxazosin, tamsulosin, alfuzosin, terazosin, prazosin, silodosin, or indoramin) for prostate symptoms or blood pressure, there is a higher risk of low blood pressure and dizziness when combined with vardenafil [5]. In this case, you should be stable on the alpha-blocker, and your prescriber will start you on the lowest dose of vardenafil. The prescriber will also check for any potent CYP3A4 inhibitors (such as ritonavir, cobicistat, ketoconazole, itraconazole, or clarithromycin), as these can raise vardenafil levels and may mean vardenafil is contraindicated or requires a dose reduction [5][12].

Practical advice for taking vardenafil with simvastatin

If your prescriber approves vardenafil for you, take it as directed—usually about 25 to 60 minutes before you plan to have sex [5]. Vardenafil works only when you are sexually aroused, so it will not cause an erection on its own. You can take vardenafil with or without food, though a very heavy or high-fat meal may delay how quickly it works [5]. Continue taking your simvastatin exactly as prescribed by your doctor; do not stop or change your statin dose without medical advice.

Avoid drinking large amounts of alcohol when using vardenafil, as alcohol can make it harder to get an erection and can add to the blood-pressure-lowering effect, increasing the risk of dizziness [5]. Grapefruit juice can raise the levels of vardenafil in your blood and should be avoided or limited [5]. If you experience dizziness, light-headedness, or feel faint after taking vardenafil, sit or lie down until the symptoms pass, and mention it to your prescriber at your next review.

Never take vardenafil with nitrates, nicorandil, riociguat, poppers, or another PDE5 inhibitor (such as sildenafil, tadalafil, or avanafil), as these combinations can cause a dangerous drop in blood pressure [5]. If you develop chest pain during sex, stop the activity, sit down, and seek urgent medical help—do not use GTN spray or any nitrate if you have taken vardenafil within the last 24 hours, as this can be life-threatening [5].

When to seek urgent help

Seek immediate medical attention if you experience an erection lasting more than four hours (priapism), sudden loss of vision in one or both eyes, sudden decrease or loss of hearing (which may be accompanied by ringing in the ears or dizziness), or chest pain during or after sex [5]. These are rare but serious side effects that require urgent assessment. If you have chest pain, do not take nitrates if you have used vardenafil in the last 24 hours; tell the healthcare professional that you have taken a PDE5 inhibitor.

Other medicines and vardenafil: what else should you know?

While vardenafil and simvastatin can generally be taken together, it is essential to declare every medicine you take—prescription, over-the-counter, herbal, and recreational—during your consultation. Some medicines can interact with vardenafil in ways that require dose adjustment or make it unsuitable. For example, potent CYP3A4 inhibitors (including some HIV medicines like ritonavir and cobicistat, antifungals like ketoconazole and itraconazole, and antibiotics like clarithromycin) can significantly raise vardenafil levels [5][12]. In many cases, vardenafil is contraindicated or requires careful specialist assessment if you are on these medicines.

CYP3A4 inducers, such as rifampicin, carbamazepine, phenytoin, and St John's wort, can reduce the effectiveness of vardenafil by lowering its levels in the blood [5]. If you are taking any of these, your prescriber may consider an alternative ED treatment or adjust your regimen. Other blood-pressure medicines, including diuretics (water tablets), can add to the blood-pressure-lowering effect of vardenafil, so your prescriber will assess your overall blood-pressure control and adjust doses if needed [5].

If you are prescribed a new medicine by your GP or another healthcare professional after starting vardenafil, always check with your prescriber or pharmacist whether it is safe to continue both. Do not stop or change any prescribed medicine without professional advice, as this could affect your heart health or cholesterol control.

How Cured Pharmacy can help with vardenafil and simvastatin

At Cured Pharmacy, all ED treatments are supplied only after an online consultation reviewed by a UK-registered prescriber. You will be asked about your current medicines (including simvastatin and any other tablets you take), your medical history, and any symptoms or concerns. The prescriber will check that vardenafil is safe and suitable for you, taking into account your cardiovascular health and any potential interactions [2][5].

If vardenafil is not the best option—for example, if you are on a medicine that interacts with it—the prescriber may suggest an alternative PDE5 inhibitor, such as sildenafil or tadalafil, which have different interaction profiles and dosing schedules [3][4]. Sildenafil (generic Viagra) is available from £0.45 per tablet (first order with code Ednew: £0.36), and tadalafil (generic Cialis) from £7.95 (first order with code Ednew: £6.36). Vardenafil (generic Levitra) is priced at £16.95 (first order with code Ednew: £13.56). All prices include the prescriber review and delivery.

If you have not seen your GP recently about erectile dysfunction, we encourage you to do so. ED can be an early warning sign of heart disease, diabetes, or other health conditions that benefit from early diagnosis and treatment [1][2]. Your GP can also review your statin therapy and overall cardiovascular risk. Cured Pharmacy works alongside the NHS to provide convenient, confidential access to ED treatment when it is clinically appropriate.

Choosing the right ED treatment for you

Different PDE5 inhibitors suit different lifestyles and preferences. Sildenafil works for about four to six hours and is taken about one hour before sex [3]. Tadalafil can last up to 36 hours, giving you more flexibility, or can be taken daily at a lower dose for spontaneous activity [4]. Vardenafil works similarly to sildenafil but may be effective slightly faster in some men [5]. Avanafil (Spedra) has the fastest onset, working in as little as 15 to 30 minutes [6]. Your prescriber will discuss which option best fits your needs, medical history, and current medicines, including your simvastatin.

Scientific References

1. NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 4 November 2026]
2. National Institute for Health and Care Excellence. (n.d.). Erectile dysfunction. Clinical Knowledge Summaries. https://cks.nice.org.uk/topics/erectile-dysfunction/ [accessed 4 November 2026]
3. Joint Formulary Committee. (n.d.). Sildenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/sildenafil/ [accessed 4 November 2026]
4. Joint Formulary Committee. (n.d.). Tadalafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/tadalafil/ [accessed 4 November 2026]
5. Joint Formulary Committee. (n.d.). Vardenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/vardenafil/ [accessed 4 November 2026]
6. Joint Formulary Committee. (n.d.). Avanafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/avanafil/ [accessed 4 November 2026]
7. Electronic Medicines Compendium. (n.d.). Summaries of Product Characteristics and Patient Information Leaflets. https://www.medicines.org.uk/emc/ [accessed 4 November 2026]

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

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