Can You Take Vardenafil and Amlodipine Together?

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Vardenafil and Amlodipine: Understanding the Interaction

Published: 27 October 2026

Many men taking amlodipine for high blood pressure or angina wonder whether vardenafil and amlodipine can be taken together safely. The good news is that this combination is not contraindicated, but it does require careful prescriber assessment because both medicines can lower blood pressure. Understanding how they interact and what precautions to take will help you use vardenafil safely and effectively.

What Is Vardenafil and How Does It Work?

Vardenafil is a prescription medicine used to treat erectile dysfunction (ED) in men [5]. It belongs to a group of medicines called PDE5 inhibitors, which also includes sildenafil (Viagra) and tadalafil (Cialis). Vardenafil is available in 5mg, 10mg, and 20mg tablets and is marketed under the brand name Levitra, though generic versions are now widely available.

Vardenafil works by relaxing the blood vessels in the penis, allowing more blood to flow in when you are sexually aroused [5]. It does not cause an erection on its own—sexual stimulation is still needed. The medicine is usually taken about 25 to 60 minutes before sexual activity, and its effects can last for several hours. The maximum recommended dose is once per day.

Like all PDE5 inhibitors, vardenafil can cause a small drop in blood pressure as a side effect of its action on blood vessels [5]. This is usually mild and not a problem for most men, but it becomes more important when you are already taking blood-pressure-lowering medicines such as amlodipine.

What Is Amlodipine and Why Is It Prescribed?

Amlodipine is a calcium channel blocker, a type of medicine commonly prescribed to treat high blood pressure (hypertension) and angina (chest pain caused by reduced blood flow to the heart). It works by relaxing and widening blood vessels, which lowers blood pressure and reduces the workload on the heart. Amlodipine is usually taken once a day and is available in 5mg and 10mg tablets.

Because amlodipine lowers blood pressure, it is important to consider how it might interact with other medicines that also affect blood pressure, including vardenafil. Many men with high blood pressure also experience erectile dysfunction—in fact, cardiovascular disease and ED often share common risk factors such as diabetes, smoking, and obesity [1][10].

If you have been prescribed amlodipine, it is essential that you tell your prescriber before starting any ED treatment. They will assess whether vardenafil is suitable for you and, if so, which dose is safest to start with.

Can Vardenafil and Amlodipine Be Taken Together?

Yes, vardenafil and amlodipine can be taken together, but only under the supervision of a prescriber who has reviewed your full medical history and current medicines. The combination is not contraindicated, meaning it is not absolutely forbidden, but it does carry a risk of additive blood-pressure-lowering effects [5]. This means that taking both medicines together may cause your blood pressure to drop more than it would with either medicine alone.

The main concern is symptomatic hypotension—a drop in blood pressure that causes symptoms such as dizziness, light-headedness, fainting, or feeling weak, particularly when standing up quickly. For most men who are stable on amlodipine and have well-controlled blood pressure, this risk is manageable, especially if vardenafil is started at a low dose [5].

Your prescriber will check your blood pressure control, review any symptoms you have had, and decide whether vardenafil is appropriate. If it is, they will usually recommend starting with the lowest effective dose (often 5mg) and monitoring how you respond. You should never start vardenafil without a prescriber's approval if you are taking amlodipine or any other blood-pressure medicine.

How the Interaction Works

Both vardenafil and amlodipine cause blood vessels to relax, though they do so through different mechanisms. Amlodipine blocks calcium channels in the walls of blood vessels, while vardenafil inhibits an enzyme called PDE5, leading to increased levels of a substance (cGMP) that relaxes smooth muscle in blood vessels [5]. When taken together, these effects can add up, leading to a greater drop in blood pressure than either medicine would cause on its own. This is why careful dose selection and monitoring are essential.

What Your Prescriber Will Check Before Approving Vardenafil

Before prescribing vardenafil to someone taking amlodipine, a UK prescriber will carry out a thorough assessment. They will ask about your current blood pressure readings, whether you have experienced any dizziness or fainting, and how well controlled your blood pressure is on amlodipine. They will also review all your other medicines to check for any additional interactions.

Your prescriber will ask about your cardiovascular health more broadly. Vardenafil is not suitable if sexual activity itself is inadvisable—for example, if you have had a recent heart attack or stroke, have unstable angina, or have severe heart failure [5]. They will also check that you are not taking any medicines that are absolutely contraindicated with vardenafil, such as nitrates (GTN spray, isosorbide mononitrate), nicorandil, riociguat, or recreational drugs known as poppers.

If you are also taking an alpha-blocker (such as doxazosin or tamsulosin) for prostate symptoms, this adds another layer of blood-pressure risk, and your prescriber will take extra care in selecting the right dose and timing. The online consultation at Cured Pharmacy is designed to capture all this information so that a UK prescriber can make a safe, individualised decision.

Practical Advice for Taking Vardenafil with Amlodipine

If your prescriber approves vardenafil while you are taking amlodipine, there are several practical steps you can take to minimise the risk of side effects. First, always start with the lowest dose recommended by your prescriber—usually 5mg or 10mg—and do not increase the dose without their approval. Take vardenafil about 25 to 60 minutes before planned sexual activity, and remember that sexual stimulation is needed for it to work [5].

Be cautious when standing up quickly, especially in the first few hours after taking vardenafil, as this is when dizziness is most likely to occur. Avoid drinking large amounts of alcohol, as this can also lower blood pressure and make side effects worse. Grapefruit juice can increase the levels of vardenafil in your blood, so it is best avoided [5].

If you experience dizziness, light-headedness, or fainting after taking vardenafil, sit or lie down until the symptoms pass, and contact your GP or pharmacist for advice. Do not take another dose until you have discussed it with a healthcare professional. Always take your amlodipine as prescribed—do not stop or change the dose without medical advice, as this could affect your blood pressure control.

When to Seek Urgent Help

Seek urgent medical help if you experience chest pain during or after sexual activity, as this could be a sign of a heart problem. If you have an erection that lasts longer than four hours (priapism), go to A&E immediately, as this is a medical emergency that requires prompt treatment to prevent permanent damage [5]. Sudden loss of vision or hearing is also a rare but serious side effect that requires immediate medical attention.

Other Blood Pressure Medicines and Vardenafil Interactions

Amlodipine is just one of many blood-pressure medicines, and it is helpful to understand how vardenafil interacts with other common types. ACE inhibitors (such as ramipril or lisinopril) and angiotensin receptor blockers (such as losartan or candesartan) can also add to the blood-pressure-lowering effect of vardenafil, though the interaction is generally manageable with careful prescribing.

Alpha-blockers, used for high blood pressure and prostate symptoms, carry a higher risk of symptomatic low blood pressure when combined with vardenafil. If you take an alpha-blocker, your prescriber will ensure you are stable on it before starting vardenafil, and will choose the lowest PDE5 inhibitor dose. Beta-blockers (such as bisoprolol or atenolol) and diuretics (water tablets such as bendroflumethiazide) can also interact, and must be declared during your consultation.

It is essential to list every medicine you take—prescription, over-the-counter, and herbal—when you complete your online consultation. The prescriber will review each one to ensure vardenafil is safe for you. Never assume a medicine is too minor to mention; even some herbal supplements, such as St John's wort, can affect how vardenafil works.

Medicines You Must Never Take with Vardenafil

Do not take vardenafil if you are using nitrates (such as GTN spray, isosorbide mononitrate, or isosorbide dinitrate), nicorandil, riociguat, or recreational drugs called poppers (amyl or alkyl nitrites). The combination can cause a dangerous, potentially life-threatening drop in blood pressure [5]. Do not take vardenafil at the same time as another PDE5 inhibitor (such as sildenafil or tadalafil). If you are unsure whether any of your medicines fall into these categories, ask your pharmacist or GP before starting treatment.

Scientific References

1. NHS. (n.d.). Erectile dysfunction (impotence). NHS website. https://www.nhs.uk/conditions/erection-problems-erectile-dysfunction/ [accessed 27 October 2026]
2. Joint Formulary Committee. (n.d.). Vardenafil. British National Formulary. NICE. https://bnf.nice.org.uk/drugs/vardenafil/ [accessed 27 October 2026]
3. Feldman, H. A., Goldstein, I., Hatzichristou, D. G., Krane, R. J., & McKinlay, J. B. (1994). Impotence and its medical and psychosocial correlates: Results of the Massachusetts Male Aging Study. Journal of Urology, 151(1), 54–61. https://pubmed.ncbi.nlm.nih.gov/8254833/ [accessed 27 October 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.