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Cialis Tablets are also known by the drug name Tadalafil. A treatment for adult men with erectile dysfunction, sometimes known as impotence.
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Cialis tablets are a prescription‑only medicine. Your online consultation with Access Doctor will help determine if Cialis is right for you and which strength and dosing schedule are appropriate.
Do not take Cialis if you take any nitrate medicine for chest pain, or if you use poppers. The combination can be fatal.
Do not take more than one tablet in 24 hours for the "as needed" dose.
If you take the 5 mg once‑daily dose, give it at least 5 days to reach a steady level in your blood before deciding if it is effective for you.
The recommended starting dose for "as needed" use is 10 mg, taken 30‑60 minutes before sexual activity.
If you have an erection lasting more than 4 hours, seek emergency medical help immediately.
If you experience sudden vision loss or hearing loss, stop taking Cialis and seek medical help.
If you are taking alpha‑blockers for prostate problems or high blood pressure, tell your doctor – you may need dose adjustments.
Always read the patient information leaflet inside the pack. If you are unsure about any aspect of your treatment, speak to a healthcare professional.
At Access Doctor, you can buy Cialis online following a confidential online consultation with a UK‑registered clinician. Both branded Cialis and generic tadalafil are available options, depending on your preference and clinical suitability. If you are eligible, you can also order Cialis UK for discreet next day delivery directly to your home.
This information is for educational purposes and does not replace the advice of your doctor or pharmacist.
Cialis is a prescription medicine that contains the active ingredient tadalafil. It belongs to a group of medicines called PDE5 inhibitors and is used to treat erectile dysfunction (ED) in adult men – the inability to get or keep an erection that is hard enough for satisfactory sexual activity. Cialis works by relaxing the blood vessels in your penis, which allows more blood to flow in when you become sexually aroused. This helps you achieve and maintain a firm erection for the duration of sexual activity. A very important point: Cialis only works if you are sexually stimulated. It is not an aphrodisiac – it will not produce an erection on its own, and it will not help you if you do not have an erection problem. Erectile dysfunction can sometimes be an early warning sign of other underlying health conditions, such as heart disease, high blood pressure, high cholesterol or diabetes. Before you start treatment, it is sensible to speak to a doctor or pharmacist. Cialis is also used to treat the signs and symptoms of benign prostatic hyperplasia (BPH) – an enlarged prostate – and for the treatment of both ED and BPH together.
Cialis works by temporarily blocking the PDE5 enzyme in your body. When you are sexually aroused, your body releases chemicals that relax the blood vessels in your penis, allowing blood to flow in to create an erection. The PDE5 enzyme normally breaks down these chemicals, turning the erection off. By blocking this breakdown, Cialis helps your erection last longer and stay firmer. The main difference between Cialis and other ED medicines like sildenafil (Viagra) is how long it lasts. Tadalafil has a much longer "half-life" – around 17.5 hours, compared to about 3-4 hours for Viagra. This means that a single dose of Cialis can help you achieve an erection for up to 36 hours after taking it. This gives you much more flexibility. You are not under pressure to have sex within a narrow window – you can take it on a Friday evening and still be able to respond to sexual stimulation throughout the weekend. This is why Cialis is often called the "weekend pill".
Cialis can be taken in two different ways, depending on your needs and preferences. Option 1: Taking it "as needed" (on-demand use) This is the most common way for men who have sex occasionally, not daily. The recommended starting dose is 10 mg, taken before you expect to have sex. You can take it anywhere from 30 minutes to 12 hours before sexual activity. The effect typically starts to work within 30 to 60 minutes. If 10 mg does not work well enough for you, your doctor may increase the dose to 20 mg. You should take no more than one tablet in any 24-hour period. Cialis can be taken with or without food. Unlike sildenafil, it is not significantly affected by a heavy or fatty meal. Option 2: Taking it once a day (daily dosing) This is for men who anticipate having sex at least twice a week and prefer to be ready whenever the moment arises. The recommended dose is 2.5 mg or 5 mg, taken once a day at approximately the same time each day. You do not need to time your dose around sexual activity – the medicine works continuously in the background. If you have side effects with the 5 mg dose, your doctor may reduce the dose to 2.5 mg once a day. It can take up to 5 days of daily dosing to reach a steady level in your blood that provides continuous benefit. The appropriateness of daily dosing should be reassessed periodically by your doctor.
Cialis is available in four standard strengths: 2.5 mg – only used for once-daily dosing. A lower dose may be tried if 5 mg causes side effects. 5 mg – the standard once-daily dose, taken at the same time every day. 10 mg – the standard starting dose for "as needed" use. 20 mg – the maximum strength for "as needed" use, for men who find 10 mg insufficient. Cialis price and cost information The Cialis price varies depending on the strength, the pack size, and whether you choose branded Cialis or generic tadalafil. Branded Cialis is significantly more expensive than generic tadalafil, even though both contain the same active ingredient and work in exactly the same way. For guidance, a pack of 4 x 10mg branded Cialis tablets typically costs around £30 to £40, while a pack of 8 x 10mg tablets might cost around £60 to £80. Generic tadalafil (10mg) is considerably cheaper – 4 tablets might cost around £12 to £20, and 8 tablets around £24 to £35. When you buy Cialis online through a service that includes a consultation, the price you see typically covers both the consultation fee and the medication, so there are no hidden extras. Larger pack sizes usually work out cheaper per tablet. Many online pharmacies also offer free shipping and discreet Cialis next day delivery, with orders arriving in plain, unmarked packaging. At Access Doctor, both branded Cialis and generic tadalafil are available for men who do not meet NHS prescribing criteria. You can buy Cialis tablets either via private prescription (branded) or as generic tadalafil if your clinician approves – both are highly effective treatment options for erectile dysfunction.
No, you cannot legally buy Cialis without a prescription in the UK. Cialis is a prescription-only medicine (POM). However, you can buy Cialis tablets from registered online pharmacies that offer an online doctor service. The process is straightforward: You complete a brief online medical consultation – a health questionnaire that asks about your medical history, any other medicines you are taking, and your symptoms. A UK-registered doctor or pharmacist reviews your answers to ensure Cialis is safe and appropriate for you. If approved, the pharmacy issues a prescription and dispatches your medication to you. All regulated online pharmacies are registered with the General Pharmaceutical Council (GPhC) or the Medicines and Healthcare products Regulatory Agency (MHRA). You should never buy Cialis from unregulated websites or from friends – counterfeit ED medicines are common and can contain dangerous substances such as industrial dyes, floor wax, or other drugs that could harm you. When you order Cialis UK from a legitimate online pharmacy, you can be confident you are receiving genuine, high-quality medication. If you already have a private prescription, you can use it to order Cialis tablets from many UK pharmacies, which may offer competitive pricing. Alternatively, you can complete a consultation through a service like Access Doctor that issues the prescription for you.
Cialis (tadalafil) is available on the NHS for the treatment of erectile dysfunction, but with significant restrictions. NHS prescribing for ED is generally limited to men with specific underlying medical conditions, including: diabetes, multiple sclerosis, Parkinson's disease, poliomyelitis, spinal cord injury, prostate cancer (following radical pelvic surgery), kidney failure requiring dialysis or transplant, severe pelvic injury, spina bifida, and single gene disorders. If you do not have one of these qualifying conditions, you will generally not be able to get Cialis on an NHS prescription for ED. In that case, you can buy Cialis tablets privately through an online pharmacy like Access Doctor. Many men choose this route because it is convenient, discreet, and avoids the need for a face-to-face GP appointment. The private route also gives you access to the full range of strengths and dosing options (including once-daily dosing). For benign prostatic hyperplasia (BPH), tadalafil 5 mg once daily is also available on the NHS with fewer restrictions, but your GP will need to diagnose BPH and determine if tadalafil is appropriate for you.
Most men tolerate Cialis well, but like all medicines, side effects can occur. Most side effects are mild to moderate and short-lasting. Common side effects (may affect up to 1 in 10 men): Headache – reported by about 12-15% of users Back pain – affects about 6-7% of users. The pain is usually felt in the lower back and can last for up to 48 hours Muscle pain (myalgia) – affects about 5-6% of users and usually settles within a couple of days Flushing – redness and warmth of your face and neck, affecting about 4-5% of users Indigestion or acid reflux – affects about 4-5% of users Nasal congestion – a stuffy or runny nose, affecting about 3-4% of users Dizziness – affects about 2% of users Less common side effects (may affect up to 1 in 100 men): Blurred vision Ringing in your ears (tinnitus) Swelling of your eyelids or eyes Red eyes Nausea Skin rash Serious side effects – rare but you need to know about them: Priapism – a painful erection that will not go away. If you have an erection that lasts more than 4 hours, you must seek emergency medical attention immediately. Sudden vision loss in one or both eyes – this can be a sign of a rare but serious condition called non-arteritic anterior ischaemic optic neuropathy (NAION). If this happens, stop taking Cialis and seek medical help urgently. Sudden hearing loss – some people have reported a sudden decrease or loss of hearing, sometimes accompanied by ringing in the ears or dizziness. Heart attack or stroke – very rare, but the risk may be increased in men with pre-existing heart disease. Severe allergic reaction – swelling of your face, lips, tongue or throat, or difficulty breathing. When to seek medical help: If you develop an erection that lasts more than 4 hours If you lose your vision suddenly If you develop chest pain, severe dizziness or nausea during sexual activity – stop sexual activity immediately and seek medical attention If you develop sudden hearing loss or ringing in your ears
There are several groups of men who must not take Cialis. This is very important. Do NOT take Cialis if: You take any medicine called a nitrate. Nitrates are prescribed for chest pain (angina). Common nitrate medicines include glyceryl trinitrate (GTN), isosorbide mononitrate, isosorbide dinitrate, and nicorandil. Taking Cialis with a nitrate can cause your blood pressure to drop suddenly and dangerously, leading to fainting, heart attack, or even death. This is an absolute contraindication. You take "poppers" – amyl nitrite, often sold as a recreational drug, is also a nitrate. If you use poppers, you must not take Cialis. The combination can be fatal. You take a medicine called riociguat (Adempas). This is used to treat a form of high blood pressure in the lungs (pulmonary hypertension). The combination can also cause a dangerous drop in blood pressure. You have been advised by a doctor to avoid sexual activity because of a heart problem. If you have unstable angina, severe heart failure, or have had a heart attack or stroke within the last six months, you should not take Cialis. You have low blood pressure (hypotension) or high blood pressure not controlled by medicines. You have ever had loss of vision because of a condition called non-arteritic anterior ischaemic optic neuropathy (NAION) – sometimes described as a "stroke of the eye". You are allergic to tadalafil or any of the other ingredients in the tablet. You do not have an erection problem. Cialis will not provide any benefit to a man with normal erectile function. Tadalafil 5 mg once daily is also contraindicated in men with severe liver impairment (Child-Pugh Class C) and in men with severe renal impairment.
Yes, Cialis can interact with several other medicines. Some interactions are dangerous, while others are manageable. Dangerous interactions (do not take Cialis at all): Nitrates – as described above. This is absolute. Poppers (amyl nitrite) – also absolute. Riociguat (Adempas) – also absolute. Interactions that need caution (tell your doctor before starting Cialis): Alpha-blockers – medicines such as doxazosin, tamsulosin (Flomax), terazosin, alfuzosin, and silodosin. These are often prescribed for high blood pressure or for prostate problems. Taking Cialis with an alpha-blocker can cause a drop in blood pressure that leads to dizziness or fainting. If you take an alpha-blocker, your doctor will usually stabilise you on the alpha-blocker first before prescribing Cialis. HIV protease inhibitors – medicines such as ritonavir, indinavir, saquinavir, or atazanavir. These can increase the level of Cialis in your blood, leading to a greater risk of side effects. Your doctor will usually limit your Cialis dose to 10 mg every 72 hours. Some antibiotics and antifungals – particularly erythromycin, clarithromycin, itraconazole, ketoconazole, and voriconazole. These can also increase tadalafil levels. Your doctor may advise a lower dose. Other PDE5 inhibitors – do not take Cialis together with other ED medicines such as sildenafil (Viagra) or vardenafil (Levitra). Using more than one type at the same time will not improve the effect but will greatly increase the risk of side effects. What about alcohol? Moderate drinking (one to two units) is generally fine with Cialis. However, alcohol can also lower your blood pressure and can make it harder to get an erection. Drinking heavily before taking Cialis may mean the medicine does not work as well, and you may feel more dizzy or lightheaded than usual. What about grapefruit juice? For erectile dysfunction, the effect is less clear, but it is generally best to avoid large amounts of grapefruit juice while taking Cialis.
You need to be careful. You should discuss Cialis with your doctor or pharmacist if you have any of the following: Heart problems such as a recent heart attack (within the last 90 days), unstable angina, severe heart failure, or an irregular heartbeat High blood pressure that is not well controlled or low blood pressure A stroke or transient ischaemic attack (TIA) within the last 6 months Severe liver problems (Child-Pugh Class C) – Cialis is not recommended Severe kidney problems (creatinine clearance less than 30 mL/minute) – Cialis is not recommended for the 10 mg or 20 mg "as needed" dose; the 5 mg once-daily dose is not recommended A physical deformity of the penis – such as Peyronie's disease or any other condition that could make erections painful A blood disorder – such as sickle cell anaemia, multiple myeloma, or leukaemia. These conditions increase the risk of priapism A rare eye disease called retinitis pigmentosa A stomach ulcer – Cialis can sometimes cause indigestion or aggravate an existing ulcer A bleeding disorder – such as haemophilia If you have any of these conditions, you may still be able to take Cialis, but your doctor will need to start you on a lower dose and monitor you carefully. If you are taking Cialis for benign prostatic hyperplasia (BPH) rather than ED, the safety considerations are similar. Your doctor will need to assess your overall health before prescribing.
Yes, Cialis can be taken for long-term use – specifically the 5 mg once-daily dose is designed for continuous use. However, there are some risks associated with long-term use that you should be aware of. Known risks of long-term use (over 12 months): Low magnesium levels (hypomagnesaemia) – this has been reported in patients taking PDE5 inhibitors for long periods. Symptoms include feeling tired, confused and dizzy, muscle twitching, and an irregular heartbeat. Low vitamin B12 levels – long-term use may reduce the absorption of vitamin B12 from your food. Symptoms include extreme tiredness, a sore and red tongue, mouth ulcers, and pins and needles. The 5 mg once-daily dose has been studied for up to 12 months. It is generally well tolerated, but your doctor should review your treatment regularly – at least once a year – to ensure it remains appropriate for you. If you are using the 5 mg once-daily dose for both ED and BPH, your doctor will also monitor your prostate symptoms and urinary flow. There is no convincing evidence that Cialis affects memory, concentration or cognitive function. However, if you experience any unusual symptoms, you should speak to your doctor.
Yes, but with some considerations. There is no clear evidence that taking tadalafil reduces male fertility. In fact, some studies have suggested that tadalafil may improve sperm motility in some men, though the clinical significance of this is not fully established. However, if you are trying to conceive with a partner, it is important to know that Cialis will not help with fertility issues that are unrelated to erectile dysfunction. If you are having difficulty conceiving, both you and your partner should see a doctor for a full fertility assessment rather than relying solely on ED medication. If you have any concerns about fertility, speak to your doctor before taking Cialis.
If you order Cialis tablets online through Access Doctor or another regulated online pharmacy, and you complete the consultation before the daily cut-off time (usually mid-afternoon), your order will be dispatched the same day. Most UK online pharmacies offer Cialis next day delivery as a standard service, with orders arriving by Royal Mail Tracked 24 or a similar courier service. Delivery is often free on orders over a certain amount, and the packaging is discreet – plain and unmarked – so no one else knows what is inside. Once your order is dispatched, you will receive tracking information so you can follow your delivery all the way to your door. For those who prefer to speak to someone in person, some pharmacies also offer click-and-collect, allowing you to pick up your order from a local pharmacy branch. When you buy Cialis online, you should factor in the consultation time (usually just a few minutes) and the cut-off time for same-day dispatch. Most men receive their medication within 24-48 hours of completing the consultation.
Store below 25°C (room temperature) in a dry place, away from direct sunlight and heat. Keep the blister pack or bottle in its outer carton to protect it from moisture. Keep the medicine out of the sight and reach of children. Do not use the tablets after the expiry date printed on the packaging. The active ingredient becomes less effective over time. If you have any leftover tablets, do not throw them away in household waste or pour them down the sink. Take them to your local pharmacy, where they will be disposed of safely.
Take ONE, at least 30 minutes before sexual activity.
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