Can You Take Sildenafil and Atorvastatin Together?

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Key takeaways

• Sildenafil and atorvastatin can usually be taken together safely with no major interaction
• Your prescriber will check your full medical history and all current medicines before prescribing
• Continue taking your atorvastatin as prescribed; do not stop or change it without medical advice
• Avoid grapefruit juice and heavy alcohol, and never take sildenafil with nitrates or poppers
• Seek urgent help for chest pain during sex, erection lasting over four hours, or sudden vision loss

What is sildenafil and atorvastatin used for?

Sildenafil is a medicine used to treat erectile dysfunction (ED) in 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 [3]. Sildenafil is the active ingredient in branded Viagra and is also available as a generic medicine. It typically starts working within 30 to 60 minutes and should be taken about one hour before sexual activity [1].

Atorvastatin is a statin medicine prescribed to lower cholesterol levels in the blood. High cholesterol is a risk factor for heart disease and stroke, and atorvastatin works by blocking an enzyme in the liver that produces cholesterol. Many men take atorvastatin long-term to reduce their cardiovascular risk. Interestingly, the same cardiovascular conditions that require statin treatment—such as high cholesterol, diabetes, and heart disease—are also common underlying causes of erectile dysfunction [2].

How do sildenafil and atorvastatin interact?

Sildenafil and atorvastatin do not have a significant interaction that would prevent them being used together [3]. Atorvastatin is metabolised in the liver by an enzyme system called CYP3A4, and while sildenafil is also partially processed by the same system, the effect of atorvastatin on sildenafil levels is not considered clinically significant. There is no evidence that taking these two medicines together increases the risk of serious side effects.

However, it is important to remember that both medicines can have an effect on blood pressure. Sildenafil can cause a mild, temporary drop in blood pressure, and some people taking statins may also experience cardiovascular effects [3]. Your prescriber will review your blood pressure, heart health, and any other medicines you take to ensure that sildenafil is safe for you. This is why a full medical consultation is required before sildenafil can be prescribed.

Understanding how your body processes these medicines

When you take sildenafil and atorvastatin together, your liver processes both medicines using overlapping enzyme pathways. In most cases, this does not cause a problem because the interaction is minor. However, if you are also taking other medicines that strongly affect the CYP3A4 enzyme system—such as certain antibiotics, antifungals, or HIV medicines—your prescriber will need to adjust doses or choose alternative treatments [3]. Always declare every medicine, supplement, and herbal remedy you take during your consultation.

At a glance

What does your prescriber check before prescribing sildenafil with atorvastatin?

Before prescribing sildenafil to someone taking atorvastatin, a UK prescriber will review your full medical history, current medications, and cardiovascular health. They will check whether you have conditions that make sildenafil unsuitable, such as recent heart attack or stroke, unstable angina, severe heart failure, very low blood pressure, or a history of sudden vision loss (NAION) [2][3].

Your prescriber will also ask about other medicines you take, particularly nitrates (such as GTN spray or isosorbide mononitrate), nicorandil, riociguat, alpha-blockers (such as doxazosin or tamsulosin), and any other treatments that affect blood pressure or are processed by the liver. If you take an alpha-blocker for prostate symptoms or high blood pressure, you may need to start on a lower dose of sildenafil to reduce the risk of dizziness or fainting [3].

The consultation will also cover lifestyle factors such as alcohol intake, recreational drug use (especially 'poppers', which must never be taken with sildenafil), and whether sexual activity is safe for you. Erectile dysfunction can be an early warning sign of heart disease or diabetes, so if you have not seen your GP about ED before, you should consider doing so [1][2].

Can you take sildenafil and atorvastatin together safely?

Yes, in most cases sildenafil and atorvastatin can be taken together safely [3]. There is no need to stop your atorvastatin or adjust its dose when starting sildenafil. You should continue taking your statin exactly as prescribed by your doctor, as it plays an important role in protecting your heart and blood vessels.

If you have been prescribed sildenafil, take it as directed—usually about one hour before sexual activity, with a maximum of one dose in 24 hours. Sildenafil can be taken with or without food, although a large, high-fat meal may delay how quickly it works [3]. Do not take more than the prescribed dose, and never combine sildenafil with another PDE5 inhibitor such as tadalafil, vardenafil, or avanafil.

Remember that sildenafil only works when you are sexually aroused; it does not increase sexual desire or cause an automatic erection. If you experience side effects such as headache, flushing, indigestion, or nasal congestion, these are usually mild and temporary. However, if you develop chest pain during sex, an erection lasting more than four hours, or sudden loss of vision or hearing, seek urgent medical help [1][3].

Practical tips for taking both medicines

Take your atorvastatin at the same time each day, as prescribed—many people take it in the evening. Sildenafil is taken only when needed, about an hour before sex. There is no need to separate the doses if they happen to coincide. Avoid drinking large amounts of alcohol, as this can worsen erectile dysfunction and increase the risk of side effects such as dizziness. Grapefruit juice can raise the levels of both atorvastatin and sildenafil in your blood, so it is best avoided or limited [3].

What are the warning signs to watch for with sildenafil and atorvastatin?

Most men taking sildenafil and atorvastatin together will not experience any problems. However, you should be aware of warning signs that require medical attention. If you develop chest pain, severe dizziness, or fainting after taking sildenafil, stop sexual activity and seek help immediately. Chest pain during sex may indicate that your heart is under strain, and you should not take another dose of sildenafil until you have been assessed by a doctor [1][3].

Priapism—an erection lasting more than four hours—is a rare but serious side effect of sildenafil that requires emergency treatment to prevent permanent damage. Sudden loss of vision in one or both eyes, or sudden decrease or loss of hearing (sometimes with ringing in the ears or dizziness), are also medical emergencies [3].

If you experience muscle pain, tenderness, or weakness while taking atorvastatin, especially if accompanied by feeling unwell or a high temperature, contact your GP. Although rare, statins can occasionally cause muscle problems, and your doctor may need to check your muscle enzyme levels. This is unrelated to sildenafil but is an important safety consideration for anyone on long-term statin therapy.

How to get sildenafil when you take atorvastatin

At Cured Pharmacy, a GPhC-registered online pharmacy, you can request sildenafil after completing a confidential online consultation. A UK-registered prescriber will review your answers, including your current use of atorvastatin and any other medicines, to ensure sildenafil is safe and appropriate for you. If approved, your treatment will be dispensed by our pharmacy team and delivered discreetly to your door.

Sildenafil is available in 25 mg, 50 mg, and 100 mg tablets. The usual starting dose is 50 mg, taken about one hour before sexual activity [3]. Your prescriber may recommend a lower dose if you are older, have kidney or liver problems, or take certain other medicines. Generic sildenafil offers the same active ingredient as branded Viagra at a lower cost.

You should not take sildenafil if you use nitrate medicines for angina (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 drop in blood pressure [3]. Always be honest and thorough when completing your consultation, as this ensures your safety.

Other ED treatments available

If sildenafil is not suitable or does not work well for you, other PDE5 inhibitors are available, including tadalafil (Cialis), vardenafil (Levitra), and avanafil (Spedra). Tadalafil can last up to 36 hours and is also available as a low-dose daily tablet [4]. All of these medicines can generally be taken with atorvastatin, subject to the same prescriber checks. Your consultation will help identify the most suitable option for your needs and lifestyle.

When to get urgent help

• Chest pain or severe dizziness during or after sex—stop activity and call 999
• Erection lasting more than 4 hours (priapism)—go to A&E immediately
• Sudden loss of vision in one or both eyes—seek emergency medical help
• Sudden decrease or loss of hearing, possibly with ringing or dizziness—contact a doctor urgently
• Severe allergic reaction (rash, swelling of face or throat, difficulty breathing)—call 999

Call 999 or go to A&E in an emergency, or contact NHS 111 for urgent advice.

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