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Aronix 50mg Tablets

Aronix 50mg Tablets

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  • ✔️ Treats erectile dysfunction in men aged 18–65
  • ✔️ Contains 50mg sildenafil citrate per tablet
  • ✔️ Works within 30–60 minutes of taking
  • ✔️ Effects last up to 4–5 hours per dose
  • ✔️ Licensed UK pharmacy (P) medicine, no prescription needed

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What Are Sildenafil 50mg Tablets and How Does Aronix Help?

 

Erectile dysfunction affects millions of men in the UK, yet it remains one of the most under-discussed health concerns. If you find it difficult to get or maintain an erection firm enough for sexual activity, you are far from alone — and there are clinically proven options available. Sildenafil 50mg tablets, sold under the brand name Aronix, are one of the most widely used treatments for erectile dysfunction (ED) available without a prescription in the UK. Aronix is licensed by the MHRA for over-the-counter sale to adult men aged 18 to 65, making it genuinely accessible. You can explore a wider range of men's health products at our men's health collection.

Aronix 50mg tablets contain sildenafil citrate as the active ingredient. Sildenafil was originally developed for cardiovascular conditions before researchers identified its effect on erectile function. It has since become one of the most studied medicines in this therapeutic area, with a well-established safety and efficacy profile backed by decades of clinical use.

 

How Does Aronix 50mg Work to Treat Erectile Dysfunction?

 

Aronix works by inhibiting an enzyme called phosphodiesterase type 5 (PDE5). Here is what happens step by step:

  • Sexual stimulation triggers the release of nitric oxide in the erectile tissue of the penis.
  • Nitric oxide activates an enzyme that produces cyclic guanosine monophosphate (cGMP).
  • cGMP relaxes smooth muscle cells in the penile blood vessels, allowing them to widen.
  • Increased blood flow into the corpus cavernosum produces an erection.
  • PDE5 normally breaks down cGMP, ending the erection. Sildenafil blocks PDE5, prolonging the effect of cGMP.

It is important to understand that Aronix does not cause an erection on its own. Sexual arousal is still required. The tablet simply makes it easier for your body to respond to that stimulation in the way it should.

 

Who Is Aronix 50mg Suitable For?

 

Aronix 50mg is intended for adult men aged 18 to 65 who experience erectile dysfunction. It is available over the counter, but a pharmacist consultation — whether in person or online — is required to confirm suitability. You should consider Aronix if:

  • You have difficulty achieving or maintaining an erection during sexual activity.
  • Your ED is occasional or situational rather than caused by an undiagnosed underlying condition.
  • You are not taking nitrates or nitric oxide donors for heart conditions.
  • You do not have severe liver, kidney, or cardiovascular disease.

Men over 65 should speak to their GP before using Aronix, as dose adjustments may be needed. It is not suitable for women or anyone under 18.

 

How Does Aronix 50mg Compare to Other ED Treatments?

 

Feature Aronix 50mg (Sildenafil) Tadalafil 10mg/20mg
Active ingredient Sildenafil citrate Tadalafil
Onset of action 30–60 minutes 30–60 minutes
Duration of effect Up to 4–5 hours Up to 36 hours
OTC availability in UK Yes (ages 18–65) Yes (ages 18–65)
Food interaction High-fat meals may delay onset Minimal food interaction

 

How Should You Store Aronix 50mg and Is It Clinically Suitable for You?

 

Store Aronix 50mg tablets below 30°C in a dry place, away from direct sunlight and out of the reach of children. Do not use the tablets after the expiry date printed on the packaging. If you are unsure whether sildenafil 50mg tablets are right for your situation — particularly if you have a heart condition, low blood pressure, or are taking other medicines — always speak to a pharmacist or GP before starting treatment. You can also browse our condoms and sexual health collection for complementary products.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Aronix 50mg Tablets specifications
Treatment category Erectile dysfunction
Active ingredient Sildenafil citrate 50mg
Mechanism of action PDE5 inhibitor — increases blood flow to the penis
Effective 30–60 minutes after taking
Suitable for Adult men aged 18–65
Pack sizes 4 tablets
Strengths 50mg
UK classification Pharmacy (P) medicine
Drug class PDE5 inhibitor
Preparation Film-coated tablet
Route of administration Oral

Specifications of Aronix 50mg Tablets

 

What Is Aronix 50mg and What Is It Used For?

 

Aronix 50mg tablets are a pharmacy (P) medicine used to treat erectile dysfunction in adult men aged 18 to 65. Each tablet contains 50mg of sildenafil citrate, a PDE5 inhibitor that helps men achieve and maintain an erection when sexually stimulated. Erectile dysfunction is defined as the persistent inability to get or keep an erection sufficient for satisfactory sexual performance. It is a common condition — the NHS estimates it affects around half of all men between the ages of 40 and 70 at some point in their lives.

Aronix is taken on an as-needed basis, meaning you take it before anticipated sexual activity rather than every day. It does not increase sexual desire and will not work without sexual stimulation.

 

What Do You Need to Know Before Using Aronix 50mg?

 

Before taking Aronix, it is essential to check whether it is safe for you. Do not take Aronix if any of the following apply:

  • You are taking nitrates (e.g. glyceryl trinitrate, isosorbide mononitrate) for chest pain or heart conditions — this combination can cause a dangerous drop in blood pressure.
  • You are taking nitric oxide donors such as amyl nitrite ("poppers").
  • You have severe liver impairment.
  • You have recently had a stroke or heart attack.
  • You have low blood pressure (hypotension) or uncontrolled high blood pressure.
  • You have a rare inherited eye condition such as retinitis pigmentosa.
  • You are under 18 or over 65 without GP guidance.
  • You are a woman.

The following medicines may interact with Aronix:

  • Alpha-blockers (e.g. doxazosin, tamsulosin) — may cause blood pressure to drop.
  • HIV protease inhibitors such as ritonavir — increase sildenafil levels in the blood.
  • Other PDE5 inhibitors — do not combine.
  • Certain antifungals (e.g. ketoconazole) and antibiotics (e.g. erythromycin) — may increase sildenafil exposure.
  • Grapefruit juice — may increase sildenafil blood levels; avoid on the day of use.

 

How Should You Use Aronix 50mg Tablets?

 

Follow these steps when taking Aronix:

  1. Take one 50mg tablet approximately 30 to 60 minutes before sexual activity.
  2. Swallow the tablet whole with a glass of water.
  3. Avoid high-fat meals before taking, as these can delay the onset of action.
  4. Ensure you are sexually stimulated — the tablet will not produce an erection without arousal.
  5. Do not take more than one tablet in any 24-hour period.
Indication Age Group Dose Frequency
Erectile dysfunction 18–65 years 50mg (one tablet) Once daily as needed
Erectile dysfunction (dose adjustment) 18–65 years 25mg or 100mg (on medical advice) Once daily as needed
Erectile dysfunction Over 65 years 25mg (on GP advice only) Once daily as needed

 

What Are the Possible Side Effects of Aronix 50mg?

 

Like all medicines, Aronix can cause side effects, although not everyone experiences them. Knowing what to look out for helps you use the medicine safely. If you experience any serious side effects, stop taking Aronix and seek medical attention immediately.

Common side effects (may affect up to 1 in 10 people):

  • Headache
  • Facial flushing (redness and warmth)
  • Indigestion or upset stomach
  • Nasal congestion
  • Dizziness

Less common side effects (may affect up to 1 in 100 people):

  • Visual disturbances (blurred vision, blue-green colour tinge)
  • Palpitations
  • Nausea
  • Skin rash
  • Prolonged erection (priapism) — seek urgent medical help if an erection lasts more than 4 hours
  • Sudden hearing loss or ringing in the ears

If you are concerned about side effects, you can also speak to our team or browse our pain relief collection for products that may help manage mild headaches associated with use.

 

How Should You Store Aronix 50mg Tablets?

 

  • Store below 30°C in a dry place.
  • Keep away from direct sunlight and moisture.
  • Keep out of the sight and reach of children.
  • Do not use after the expiry date printed on the carton.
  • Do not dispose of medicines via wastewater or household waste — return unused tablets to your pharmacy.

If you have any questions about storage or suitability, our pharmacists are available to help. You may also find it useful to explore our men's health range for additional support products.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Aronix 50mg tablets online in the UK?

You can buy Aronix 50mg tablets from Cured Pharmacy, a GPhC-registered online pharmacy. You will need to complete a short online consultation to confirm the medicine is suitable for you before purchase. This is a legal requirement for pharmacy (P) medicines sold online in the UK.

How does Aronix 50mg work in the body?

Aronix 50mg contains sildenafil citrate, which works by blocking the PDE5 enzyme in the smooth muscle of penile blood vessels. This allows blood vessels to relax and widen in response to sexual stimulation, increasing blood flow and enabling an erection. It only works when you are sexually aroused — it does not act independently.

How do I take Aronix 50mg tablets step by step?

Take one Aronix 50mg tablet with a glass of water approximately 30 to 60 minutes before sexual activity. Avoid eating a heavy or high-fat meal beforehand, as this can slow absorption. Do not take more than one tablet within any 24-hour period.

What is the best time to take Aronix 50mg?

The best time to take Aronix is around 30 to 60 minutes before you plan to have sex, on an empty stomach or after a light meal. Taking it after a large, fatty meal may delay how quickly it starts working. Plan ahead where possible to get the most consistent results.

What are the side effects of Aronix 50mg and how do I manage them?

The most common side effects of Aronix include headache, flushing, nasal congestion, and indigestion — these are usually mild and short-lived. Staying well hydrated and avoiding alcohol can help reduce their severity. If you experience chest pain, a prolonged erection lasting more than 4 hours, or sudden vision or hearing changes, stop taking the tablet and seek urgent medical attention.

Who is eligible to use Aronix 50mg tablets?

Aronix 50mg is suitable for adult men aged 18 to 65 who experience erectile dysfunction and have no contraindications. It is not suitable for men taking nitrates, those with severe cardiovascular disease, severe liver impairment, or those who have recently had a stroke or heart attack. Men over 65 should consult their GP before use.

What happens if I take too much Aronix 50mg?

Taking more than the recommended dose of Aronix increases the risk of side effects, including severe drops in blood pressure, prolonged erections, and visual disturbances. If you accidentally take more than one tablet in 24 hours and feel unwell, contact NHS 111 or go to your nearest A&E. Always keep medicines out of reach of children.

What happens if I miss a dose of Aronix 50mg?

Because Aronix is taken on an as-needed basis rather than as a daily scheduled medicine, a missed dose is not applicable in the traditional sense. Simply take it when you need it, ensuring you do not take more than one tablet within any 24-hour period. There is no need to double up.

Can I drink alcohol while taking Aronix 50mg?

Drinking alcohol while taking Aronix can increase the risk of side effects such as dizziness, low blood pressure, and headache. The NHS advises limiting alcohol intake when using sildenafil. Excessive alcohol can also independently worsen erectile dysfunction, so moderation is advisable for both safety and effectiveness.

What are the alternatives to Aronix 50mg for erectile dysfunction?

Alternatives to Aronix include other PDE5 inhibitors such as tadalafil (which lasts up to 36 hours), vardenafil, and avanafil. Each has a slightly different onset time, duration, and side effect profile. You can explore options through our men's health collection or speak to a pharmacist for personalised advice.

How long does Aronix 50mg take to work?

Aronix 50mg typically starts working within 30 to 60 minutes of taking it, though this can vary between individuals. Eating a heavy meal before taking it may slow absorption and delay the onset. The effects can last for up to 4 to 5 hours, though this does not mean an erection lasts that long — it simply means you may find it easier to achieve one during that window.

How long can you keep taking Aronix 50mg?

Aronix 50mg can be used on an ongoing as-needed basis, but if you find you are relying on it frequently, it is worth speaking to your GP to investigate any underlying causes of your erectile dysfunction. Long-term use is generally considered safe under appropriate medical supervision. Regular review is recommended.

Is Aronix 50mg the same as Viagra?

Yes — Aronix 50mg contains the same active ingredient as Viagra (sildenafil citrate) at the same standard dose. Aronix is a branded version of sildenafil that is licensed for over-the-counter sale in the UK. The clinical effect is the same; the difference is simply the brand name and packaging.

Can I take Aronix 50mg if I have high blood pressure?

If your high blood pressure is well controlled and you are not taking nitrates, you may be able to use Aronix — but you must speak to your GP or pharmacist first. Sildenafil can lower blood pressure, and combining it with certain antihypertensive medicines may cause an unsafe drop. Never self-medicate without professional guidance if you have a cardiovascular condition.

What are the latest findings on sildenafil for erectile dysfunction?

Sildenafil remains one of the most extensively studied medicines for erectile dysfunction, with decades of clinical evidence supporting its safety and efficacy. Research continues to explore its use in other conditions, including pulmonary arterial hypertension, where it is already licensed. For the most up-to-date clinical guidance, the NHS and BNF remain the most reliable UK sources. You can also find related sexual health products in our condoms and sexual health collection.

How Should You Use Aronix 50mg Tablets?

Aronix 50mg is straightforward to use, but following the correct steps helps ensure you get the best results and minimise the risk of side effects. Always read the patient information leaflet supplied with your pack before taking this medicine for the first time.

If you find the 50mg dose is not effective or causes troublesome side effects, speak to your GP or pharmacist before adjusting your dose. Never take two tablets to compensate.

What Is the Correct Dose of Aronix 50mg?

The standard recommended dose for most men is one 50mg tablet taken as needed. Your doctor may recommend a lower dose of 25mg if you are sensitive to sildenafil, or a higher dose of 100mg if 50mg is not sufficiently effective — but only on medical advice. Do not adjust your dose without speaking to a healthcare professional first.

When Is the Best Time to Use Aronix 50mg?

Take Aronix approximately 30 to 60 minutes before you plan to have sex. The tablet reaches peak concentration in the blood within 30 to 120 minutes, though this varies between individuals. Eating a light meal beforehand is fine, but a large, high-fat meal can significantly delay absorption and reduce the tablet's effectiveness — so plan accordingly.

Avoid alcohol on the day of use where possible. Alcohol can lower blood pressure and increase the likelihood of dizziness, and it can independently impair erectile function. Taking Aronix at a consistent time relative to sexual activity helps you understand how your body responds to it.

How Long Can You Use Aronix 50mg For?

Aronix can be used on an ongoing as-needed basis for as long as it remains appropriate for you. There is no fixed maximum treatment duration, but if you find yourself using it very frequently or if it stops being effective, this may indicate an underlying health issue that warrants investigation. Speak to your GP if your erectile dysfunction is worsening or if you have concerns about long-term use.

Regular review with a healthcare professional is sensible, particularly if your general health or other medicines change over time. Sildenafil has a well-established long-term safety record when used appropriately.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Aronix 50mg?

Most men who take Aronix 50mg tolerate it well, but like all medicines, it can cause side effects in some people. Common side effects affect up to 1 in 10 users and are generally mild and temporary. They tend to occur shortly after taking the tablet and resolve on their own within a few hours.

  • Headache
  • Facial flushing (redness and a feeling of warmth)
  • Indigestion or stomach discomfort
  • Nasal congestion or a blocked nose
  • Dizziness or light-headedness

What Are the Less Common Side Effects of Aronix 50mg?

Less common side effects affect fewer than 1 in 100 users. While these are not frequent, it is important to be aware of them so you can respond appropriately if they occur. If any of the following persist or concern you, stop taking Aronix and seek medical advice.

  • Visual disturbances, including blurred vision or a blue-green colour tinge to vision
  • Palpitations or awareness of your heartbeat
  • Nausea
  • Skin rash or itching
  • Back pain or muscle aches
  • Ringing in the ears (tinnitus)
  • Sudden decrease or loss of hearing

What Are the Serious Side Effects of Aronix 50mg?

Serious side effects are rare but require immediate medical attention. Do not ignore these symptoms or wait to see if they resolve on their own.

  • Priapism — a prolonged, painful erection lasting more than 4 hours. This is a medical emergency. Go to A&E immediately, as permanent damage to penile tissue can occur if left untreated.
  • Sudden loss of vision in one or both eyes — this may indicate non-arteritic anterior ischaemic optic neuropathy (NAION), a rare but serious condition.
  • Severe allergic reaction — symptoms include swelling of the face, lips, tongue or throat, difficulty breathing, or a widespread rash. Call 999 immediately.
  • Chest pain or pressure — stop taking Aronix and seek emergency help. Do not take nitrates to relieve chest pain if you have taken sildenafil.

What Should You Do If You Experience Side Effects of Aronix 50mg?

For mild side effects such as headache or flushing, staying hydrated and resting usually helps. Avoiding alcohol and heavy meals before taking Aronix can also reduce the likelihood of these occurring. If side effects are persistent or affecting your quality of life, speak to your pharmacist or GP — a dose adjustment may be appropriate.

You can also report side effects directly to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps regulators monitor the safety of medicines in real-world use.

Can Aronix 50mg Interact With Other Medicines?

Yes — sildenafil has several clinically significant interactions. The most dangerous is with nitrates (used for angina and heart conditions), which can cause a severe and potentially life-threatening drop in blood pressure. Alpha-blockers used for prostate conditions or high blood pressure can also lower blood pressure when combined with Aronix. HIV medicines such as ritonavir increase sildenafil levels in the blood, raising the risk of side effects. Always tell your pharmacist or GP about all medicines, supplements, and recreational drugs you are taking before starting Aronix.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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