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Cialis is a drug treating erectile dysfunction whereby blood vessels in the penis are relaxed, allowing blood to flow in the penis, thereby causing an erection. The active ingredient is Tadalafil. It is available as a tablet with a variety of doses. Cialis will not work if you are not sufficiently sexually stimulated.
To buy the cheaper (non-branded) version click here to buy tadalafil.
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Description of Cialis
Cialis for Erectile Dysfunction
Many men over the age of 40 struggle to achieve an adequate erection for sexual activity. This condition is known as erectile dysfunction or impotence and can affect people in different ways. While a temporary inability to achieve an erection can be explained by stress, fatigue or the use of alcohol or other substances, recurring erectile dysfunction can be a sign of diabetes, hormone imbalances, high blood pressure or cholesterol and/or mental health concerns such as depression or anxiety.
While erectile dysfunction can affect a man of any age, Cialis is only intended to be used by men aged over 18. Cialis, like other erectile dysfunction medications, will only work after the man has become sexually aroused.
What is Cialis and how does it work?
Cialis contains the active ingredient Tadalafil. This ingredient is a phosphodiesterase type 5 inhibitor medicine that temporarily improves blood flow to the penis by relaxing the blood vessels in and around the area.
The Cialis treatment is available with a prescription in two forms: once-daily and when-needed tablets. Cialis (2.5 and 5mg) tablets are once-daily treatments for erectile dysfunction (ED). The 10mg and 20mg tablets can be taken when needed
Cialis is not intended to be used by women.
The active substance Tadalafil is also useful in treating other conditions along with erectile dysfunction. Please consult a Doctor, a Pharmacist or relevant product literature for more information.
Is Cialis right for me?
If you suffer from erectile dysfunction (impotence) Cialis may be an effective treatment. However, it may not be suitable for you if you have the following:
- If you have galactose intolerance
- If you have severe heart, liver or kidney problems
- If you have blood pressure concerns
- If you have non-arteritic anterior ischemic optic neuropathy
- If you are taking riociguat
Side Effects of Cialis
All medications can cause potential side effects, below we have listed some potential side effects of Cialis. However, these do not always occur and are mostly mild in nature. But if you experience any prolonged or worrying side effects of Cialis, please discontinue the medication immediately and consult your doctor.
Common side effects include:
- Headaches
- Back pain
- Muscle aches
- Pain in arms and legs
- Facial flushing
- Indigestion
- Nasal congestion
- Dizziness
Cialis Patient Information Leaflet
Cialis Additional Information
Cialis is a drug used to treat erectile dysfunction and other conditions. It belongs to a group of drugs called phosphodiesterase type 5 inhibitors. Cialis works by increasing blood flow to the penis, which helps you get and keep an erection.
Cialis is available as a tablet and comes in two different types: Daily (2.5mg & 5mg tablets) and when needed doses (10 mg & 20 mg tablets). The most common side effects are headache, flushing, heartburn, nasal congestion, diarrhoea, dizziness, and rash.
Cialis can be taken with or without food. If taking Cialis with grapefruit juice it may alter the way it works, please consult a doctor or a pharmacist for more information.
Cialis is available by prescription only and should be taken as directed by a healthcare professional. Possible side effects of Cialis include headache, flushing, upset stomach, and nasal congestion. Contact a healthcare provider if you experience any severe side effects while taking Cialis.
Cialis can also be used for other purposes not listed in this medication guide. Always speak with your doctor before taking Cialis for any reason.
How to take Cialis?
Always take Cialis exactly as prescribed by your doctor or advised by the pharmacist. The recommended starting dose is one 5mg tablet taken once a day at approximately the same time, or one 10mg tablet taken before sexual activity, however, in presence of other factors, this may be increased or decreased accordingly as per the prescriber's clinical judgement.
- The time taken for Cialis to work may vary for different individuals
- Cialis tablets can be taken with or without food
- Avoid grapefruit juice with this medication as it may have an effect on side-effects experienced by you
- Avoid alcoholic drinks as they may affect the ability to achieve an erection as well as the effect of this medication
For 2.5mg strength
- Take 1 or 2 tablets daily at the same time of day.
- This can take 2-3 days for effects to start.
- Swallow whole with water.
- Do not take Cialis more than once a day.
For 5mg strength
- Take 1 tablet daily at the same time of day.
- This can take 2-3 days for the effects to begin.
- Swallow whole with water.
- Do not take Cialis more than once a day.
For 10mg and 20mg strength
- Take one 10mg tablet at least 30 minutes before sexual activity.
- If needed, the dose can be increased to 20mg (2 x 10mg tablets) by your doctor as a single dose; max. one dose (20mg) in 24 hours (effects can last up to 36 hours).
- Swallow whole with water.
- Do not take Cialis more than once a day.
- Cialis 10mg and 20mg are intended to be used only before anticipated sexual activity and are not recommended for continuous daily use.
Warnings and Precautions of Cialis
Cialis may not be safe if taken with other medication or recreational drugs. Please inform the prescriber if you are taking any of the listed medications.
DO NOT take Cialis:
- If you've ever had an allergic reaction to Tadalafil or any other ingredients listed in this medicine
- If you are taking medicines called nitrates for angina (chest pain) or amyl nitrates (poppers)
- If you are taking riociguat
- If you are taking any alpha-blockers such as Doxazosin, Tamsulosin
- If you are taking medications to treat high blood pressure
- If you are taking a 5 - alpha reductase inhibitor used to treat benign prostatic hyperplasia
- If you are taking medicines such as ketoconazole tablets and protease inhibitors used for the treatment of fungal infections, AIDs and HIV
- If you are taking anticonvulsant medicines, such as phenobarbital, phenytoin and carbamazepine
- If you are taking anti-fungal or antibiotics such as rifampicin, erythromycin , clarithromycin or itraconazole.
- If you are taking other ED medications
The above-listed warnings are not exhaustive, please consult a doctor, pharmacist or nurse if you have further questions on the use of this medication or potential interactions with other medicines.
Delivery of Cialis
Next Day Delivery Guarantee
All orders placed before 14:00 weekdays will be delivered the next working day. For the majority of the UK, medication will be dispatched by Royal Mail, Monday to Friday, if ordered before 14:00. Dispatches are sent using Royal Mail's Next-Day Tracked 24 Hour service. We will email you tracking information directly and you should receive your order the day after dispatch.
Our Discreet Packaging Promise
We know that many of our customers turn to us when they need personal medication, preferring to use our online service rather than shopping for the product face to face. That is why our delivery is always discreetly packaged in plain brown boxes or envelopes. You will not have to worry about any content descriptions, and the package will be for your eyes only!
Cialis Reviews
Cialis is an effective treatment, but it might not work for all patients. Find out a comprehensive list of reviews on Cialis below taken from independent sources.
Read review on Cialis below:
- Cialis has a rating of 8.5 out of 10 for acne treatment according to user reviews on drugs.com
- Patients who have used Welzo.com have rated us “excellent” on Trustpilot. We have over 20,000+ reviews from multiple platforms, click here to view our Trustpilot reviews and click here to read our reviews on Trustindex.
Product reviews

How it works
This is a quick process and should only take 1 - 2 minutes. All of your answers are confidential, and just like a GP consultation, you will know what treatment is most suitable for you instantly upon completion.
Once you have completed the quick online form, select the treatment option most suitable to you and checkout securely.
A medical professional will review your answers to the online medical consultation and determine if it’s safe to prescribe and what treatments are available.
Buy Cialis Online
Please note the information below is intended for general knowledge, please read the patient information leaflet and/or the information provided by a healthcare professional for more specific guidance. This information should not substitute medical advice.
You can buy Cialis online from our UK-registered online pharmacy partners. Complete an online consultation form and our system will show you if you are eligible to purchase Cialis online. Our pharmacists will then review your order of Cialis and dispatch it discreetly to your address.
How to buy Cialis online?
You can buy Cialis by following the following steps.
- Fill out our online consultation form
- If you are eligible to purchase Cialis you will be shown it as one of your treatment options
- Pay online and receive your order to the comfort of your chosen address
Can I get Cialis on the NHS?
Whether or not you can get Cialis on the NHS is dependent on your local guidelines and eligibility status. It is best to contact your local GP service if you are unsure of whether you can get Cialis from the NHS.
Can you get Cialis over the counter?
No, you can’t get Cialis over the counter without a prescription or consultation. Cialis is a regulated medication so all purchases need to have a prescription and/or suitable consultation form completed.
Can I buy Cialis online even if I have never taken it before?
A prescribing pharmacist will need to review your consultation form before the medication can be dispatched. One of our partner prescribing pharmacists will review the consultation form and will decide if you are eligible to buy Cialis.
Is Cialis safe?
If you have been prescribed Cialis then it is at the discretion of the prescriber.
However, all medications can potentially have adverse effects and should be taken exactly as prescribed. If you experience any side effects when taking Cialis then you should contact a doctor immediately.
Are there any foods that should be avoided when taking Cialis?
We recommend you read the patient information leaflet for this product thoroughly before taking the treatment. This is essential to understanding any interactions that can occur and to take the medication safely.
Can I buy Cialis from Boots?
It is generally possible to purchase medication, including Cialis, from UK pharmacies like Boots. However, I recommend checking the Boots website or contacting Boots directly for the most current and accurate information. Remember to consult with a healthcare professional before starting any new medication.
Can I buy Cialis from Superdrug?
If you would like to buy Cialis, you will need to check availability on the Superdrug website.
Can I buy Cialis from Amazon?
Amazon does not sell medication such as Cialis, as they are not a pharmacy service provider. Always check with Amazon to see what they sell.
How long does Cialis take to work?
The time it takes for a Cialis to work can vary greatly depending on several factors, such as the strength, the individual's age, weight, and overall health, as well as any potential interactions with other medications or substances. Generally, the effects of Cialis may be noticeable within the time frame outlined by the prescribing pharmacist. It is important to follow the prescribed dosage and instructions provided by your healthcare professional, and to consult them if you have any concerns or questions about the medication's efficacy or possible side effects.
How effective is Cialis?
The effectiveness of Cialis can vary significantly depending on various factors, such as the dosage, the condition being treated, the individual's age, weight, and overall health, as well as the presence of any other medications or substances that might interact with it. While some medications may be highly effective for certain individuals and conditions, others might experience a lesser degree of benefit or may require adjustments to the dosage or additional treatments to achieve the desired results.
What are the risks of taking Cialis?
At Welzo, we are dedicated to providing our customers with accurate and comprehensive information about medications. We believe that understanding the potential risks and side effects associated with a medication is essential for making informed decisions about your health. This guide outlines some general considerations for assessing the risks of medication and includes references to the National Health Service (NHS) for further information.
- Read the Patient Information Leaflet (PIL): Every medication comes with a Patient Information Leaflet, which provides essential details about the drug, its uses, and potential side effects. Be sure to read this leaflet carefully before starting any new medication. The Electronic medicines compendium has a list of patient leaflets. you can visit by heading to medicines.org
- Be aware of potential side effects: All medications have the potential to cause side effects, ranging from mild and short-lived symptoms to more serious, long-lasting issues. It's important to understand the possible side effects of a medication and how to manage them. The NHS has a helpful resource on managing medication side effects, while also speaking to a healthcare professional is important in understanding any potential risks of taking Cialis.
- Interactions with other medications: Some medications may interact with others, leading to increased side effects or reduced effectiveness. Make sure to inform your healthcare professional about all the medications and supplements you are currently taking. The NHS offers a useful tool for checking potential drug interactions here.
- Contraindications and precautions: Certain medical conditions or factors may make it unsafe for you to take a particular medication. Before starting any new medication, inform your healthcare professional about your medical history and any current health issues. The NHS provides more information about contraindications and precautions here.
- Appropriate use and dosage: It's crucial to follow the prescribed dosage and instructions for taking a medication to ensure its effectiveness and minimise the risk of side effects. The NHS has a useful guide on using medicines safely here.
- Monitoring and follow-up: Some medications require regular monitoring or follow-up appointments with your healthcare professional to ensure their safety and effectiveness. Be sure to schedule and attend these appointments as needed.
Can I buy Cialis in the UK?
Yes, you can buy Cialis in the UK with a valid prescription and or consultation form. Cialis is available in the UK for purchase from local pharmacies with a valid prescription and or consultation and to purchase from Welzo if in stock. It is imperative that you ensure that the pharmacy you are buying the products from is licensed and registered with the General Pharmaceutical Council (GPhC).
Where can I buy Cialis?
You can buy Cialis online from Welzo.com upon completion of a consultation form and a free review from a prescribing pharmacist.
Are Cialis users satisfied with the product?
We have a list of reviews from customers taking Cialis at the bottom of this page. For more information of the reviews of Cialis head over to drugs.com for further details.
Can I buy Cialis from an online pharmacy?
Yes, you can purchase Cialis from an online pharmacy. However, this is dependent on your eligibility for the medication.
How much does Cialis cost?
The costs of Cialis are listed at the top of the page. Pricing is provided as a reference as treatment options will be shown upon completing the consultation form.
What is Cialis 20mg used for?
Cialis 20mg is used to treat erectile dysfunction (ED) and is the highest strength available. It can help achieve an erection when sexual stimulation occurs. An erection will not occur just by taking a pill.
What are the dangers of taking Cialis?
The common side effects of Cialis will usually go away when you stop taking the medication, however, there are some serious side effects that will only affect 1 in 1,000 people, these can include
- Chest pains
- Prolonged or sometimes painful erection
- A sudden problem with your eyesight or hearing
- A serious skin reaction, these may show as red raised patches, red spots, a swollen face or swelling around the eyes
- Seizure or fits
Is this medication suitable for me?
Please get in touch with a doctor if you are unsure what medication is suitable for you. You can also complete our online consultation form to check your eligibility for the product.