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Tadalafil 20mg tablets

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Tadalafil 20mg Overview

What is Tadalafil 20mg?

Tadalafil 20mg is a prescription medication that treats erectile dysfunction (ED) by improving blood flow to the penis. This boost in circulation helps you achieve and maintain an erection when sexually stimulated.

How Does It Work?

Tadalafil 20mg is prized for its long-lasting action—up to 36 hours—allowing for more spontaneity in intimate moments. It is taken as needed, typically about 30 minutes before sexual activity.

Who Can Benefit?

This medication is suitable for most adult men seeking a dependable way to enhance their sexual health and performance.

Purchase Online

To order Tadalafil 20mg tablets, complete the online consultation form at courierpharmacy.co.uk and follow the simple steps to secure your prescription.

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Overview

Active ingredients

What is it for?

How does it work?

How do you use it?

Warnings and precautions

Side effects

Drug interactions

FAQs

Download patent leaflet

Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Superintendant Pharmacist, Independent Prescriber


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August 11, 2026

What are Tadalafil 20mg Tablets?

Overview

  • Tadalafil 20mg tablets contain 20mg of the active ingredient tadalafil.
  • They are a prescription medication used primarily for treating erectile dysfunction (ED) and can also help relieve symptoms of benign prostatic hyperplasia (BPH).
  • Tadalafil works by blocking the PDE5 enzyme, which relaxes the blood vessels in the penis and increases blood flow during sexual stimulation.

How They Work

  • By inhibiting the PDE5 enzyme, tadalafil allows the penis to receive more blood when aroused, making it easier to achieve an erection.
  • It also relaxes the smooth muscles in the prostate and bladder, which can reduce urinary symptoms related to BPH.

Usage and Effectiveness

  • Tadalafil 20mg tablets are typically taken at least 30 minutes before sexual activity.
  • The medication usually starts to work within 30 to 60 minutes.
  • Its effects can last up to 36 hours, offering flexibility and spontaneity, which is why it is often called the “weekend pill.”
  • Sexual stimulation is still necessary for the tablet to work effectively.

Safety and Tolerance

  • Common side effects may include headache, indigestion, back pain, and muscle aches, which often decrease with continued use.
  • It is important to use tadalafil under the guidance of a healthcare provider, especially if you have other health conditions or are taking additional medications.

For more information or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

What is the Active Ingredient in Tadalafil 20mg Tablets?

Tablet Composition

  • Each tablet is made with 20mg of tadalafil, the key active component responsible for its effect.
  • For further information or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

What are Tadalafil 20mg Tablets Used For?

Usage and Benefits

Tadalafil is the generic version of Cialis, a trusted prescription treatment for erectile dysfunction (ED). It helps men who have difficulty achieving or maintaining an erection. When taken with sexual stimulation, it increases blood flow to the penis, supporting a firm erection. Its effects can last up to 36 hours, offering enhanced spontaneity and flexibility. Remember, tadalafil is not an aphrodisiac and does not increase sexual desire—it only assists with the physical process when aroused.

Purchase Information

To buy Tadalafil 20mg tablets online, complete the consultation form at courierpharmacy.co.uk.

How Do Tadalafil 20mg Tablets Work?

Mechanism of Action

  • ED medications such as Viagra, sildenafil, Cialis, and tadalafil function by inhibiting the phosphodiesterase type 5 (PDE5) enzyme.
  • This inhibition boosts the levels of nitric oxide (NO) in the blood vessels of the penis, which in turn increases blood flow during sexual stimulation.
  • As a result, an erection is more easily achieved and maintained.
  • Although tadalafil works in the same way as sildenafil, its longer duration of action sets it apart.

Order Information

  • To purchase Tadalafil 20mg tablets online, complete the consultation form at courierpharmacy.co.uk.

How to Take Tadalafil 20mg Tablets?

Available Strengths

  • Tadalafil is offered in four strengths: 2.5mg, 5mg, 10mg, and 20mg.
  • The 2.5mg and 5mg doses are mainly for daily use, though the 5mg dose can also be used on an as-needed basis.

Recommended Dosage

  • The usual starting dose is 10mg, taken at least 30 minutes before sexual activity.
  • If the 10mg dose is effective, your doctor might suggest trying a 5mg dose as a trial.
  • If several attempts with 10mg do not work, the dose may be increased to 20mg.
  • Remember, taking a higher dose than necessary does not provide extra benefits.

Important Considerations

  • Always follow your healthcare provider's guidance when adjusting your dosage.
  • It is best to stick with one dose for a period before changing to a higher or lower strength.

For more information or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

Who Should Not Take Tadalafil 20mg Tablets?

Assessment Process

At courierpharmacy.co.uk, you will complete a short questionnaire about your erectile dysfunction. This helps determine if Cialis (tadalafil) is safe for you. Do not take Cialis without further advice from your healthcare provider if any of the following conditions apply:

When to Avoid Tadalafil 20mg Tablets

  • You are already using other ED medications such as Viagra, Levitra, or Spedra.
  • You take nitrates for angina, including isosorbide mononitrate, isosorbide dinitrate, nicorandil, or glyceryl trinitrate, as this combination may cause serious reactions.
  • You are prescribed HIV treatments like Indinavir or Ritonavir.
  • You use antifungal medications such as itraconazole or ketoconazole.
  • You use recreational drugs like amyl nitrate (commonly known as "poppers").
  • You take alpha-blockers for prostate enlargement or high blood pressure, for example, doxazosin, prazosin, alfuzosin, terazosin, indoramin, or tamsulosin.
  • You are on antibiotics like erythromycin, clarithromycin, or rifampicin.
  • You use anticonvulsants such as phenobarbital, phenytoin, or carbamazepine.

For more information or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

What are the Side Effects of Tadalafil 20mg Tablets?

Overview

Tadalafil 20mg tablets, a generic form of Cialis, work by blocking the PDE5 enzyme to treat erectile dysfunction. They also affect another phosphodiesterase enzyme, which can sometimes cause temporary visual changes such as a blue tint. This effect is common with all PDE5 inhibitors and is not harmful.

Common Side Effects

  • Headache
  • Runny nose
  • Indigestion
  • Nasal congestion
  • Back pain
  • Muscle aches
  • Pain in the arms and legs
  • Facial flushing

Most men do not experience significant side effects with Tadalafil 20mg tablets. A complete list of side effects is available in the patient information leaflet provided by the manufacturer.

Rare but Serious Effects

Some individuals may notice a bluish or yellowish tint in their vision after taking the tablet. While this is a common and harmless effect of PDE5 inhibitors, there is a very rare risk of developing priapism—a prolonged and painful erection. Priapism is a medical emergency that can cause permanent damage if not treated promptly, so seek medical help if an erection lasts more than 2 hours.

For more details or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

Drug Interactions with Tadalafil 20mg Tablets

Overview

Tadalafil 20mg tablets may interact with various medications, which can lead to unwanted effects or reduce their effectiveness. It is important to tell your healthcare provider about all medications you take, including prescriptions, over-the-counter drugs, and herbal supplements.

Key Interactions

  • Nitrates: Tadalafil can cause a dangerous drop in blood pressure when taken with nitrates, which are often prescribed for chest pain (angina). This combination should be avoided.
  • Alpha-blockers: Medications like doxazosin and tamsulosin, used for high blood pressure or prostate issues, can increase the blood pressure-lowering effect of tadalafil. Caution and possible dose adjustments are necessary.
  • Antihypertensives: When combined with other blood pressure medicines, tadalafil may further lower blood pressure. This requires careful monitoring and possibly adjusting doses.
  • Antifungal Medications: Drugs such as ketoconazole and itraconazole can raise tadalafil levels in your blood, increasing the risk of side effects. Dose changes or alternative treatments may be needed.
  • HIV Protease Inhibitors: Medicines like ritonavir can elevate tadalafil levels, making dose modifications essential to prevent adverse effects.
  • Antibiotics: Certain antibiotics, for example erythromycin, may increase tadalafil levels, requiring careful monitoring and possible dose adjustments.
  • Other PDE5 Inhibitors: Using tadalafil alongside other PDE5 inhibitors (like sildenafil or vardenafil) is not recommended due to a higher risk of side effects.
  • Grapefruit Juice: Grapefruit juice can interfere with the way tadalafil is metabolised, leading to higher levels in the blood and a greater chance of side effects.
  • Antacids: Some antacids may affect the absorption of tadalafil, so it is best to take them at different times.
  • Alcohol: Excessive alcohol intake can increase the risk of side effects such as dizziness, headaches, and lowered blood pressure.

Important Note

Managing these interactions under the supervision of your healthcare provider is crucial for the safe and effective use of Tadalafil 20mg tablets.

For more information or to purchase Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

Tadalafil 20mg Tablets FAQs

What are Tadalafil 20mg Tablets?

In the UK, the patent for Cialis expired on November 14, 2017. This allowed other companies to manufacture and sell generic versions of the medication, known as tadalafil. These generics provide the same safety, quality, and effectiveness as the branded version while typically being more affordable.

What do Tadalafil 20mg Tablets Do?

Tadalafil works by blocking the enzyme phosphodiesterase type 5 (PDE5). This action increases blood flow to the penis when you are sexually stimulated, helping you achieve and maintain an erection. It is also used to ease symptoms of benign prostatic hyperplasia (BPH) by improving urinary flow, which can enhance overall sexual performance and satisfaction.

Why Do Some Men Experience Erectile Dysfunction?

Erectile dysfunction (ED) can result from several factors:

  • Lifestyle choices such as smoking, excessive alcohol consumption, and drug use.
  • Emotional stress and performance anxiety.
  • Underlying health issues like diabetes, atherosclerosis, or heart disease. If you experience ED, it is important to consult with your healthcare provider for proper evaluation and treatment advice.

How Long Do Tadalafil 20mg Tablets Last?

Tadalafil offers an extended duration of action, remaining effective for up to 36 hours. This long-lasting effect provides greater flexibility and spontaneity compared to other ED treatments, which often work for only a few hours.

What Are the Benefits of Tadalafil 20mg Tablets?

  • Helps improve blood flow to the penis for stronger erections.
  • Provides long-lasting effects, giving you a wider window for intimacy.
  • Low daily doses can help alleviate urinary symptoms associated with BPH, such as a weak stream or frequent urination.

Can I Take Tadalafil 20mg Tablets Daily?

Tadalafil is available in different strengths. Lower doses (2.5mg or 5mg) are usually prescribed for daily use, while 10mg and 20mg tablets are for on-demand use. Daily dosing offers continuous support for ED without the need to plan ahead for each encounter.

How to Take Tadalafil for the First Time?

  • Cialis comes in four strengths: 2.5mg, 5mg, 10mg, and 20mg.
  • The typical starting dose is 10mg, taken at least 30 minutes before sexual activity.
  • If 10mg works well, your doctor might recommend a trial of a 5mg dose.
  • If 10mg is not effective after several attempts, the dosage may be increased to 20mg. It is important to use only the dose necessary for effective treatment as advised by your healthcare provider.

Daily Dosing versus On-Demand Dosing

  • On-demand dosing uses 10mg or 20mg tablets taken before sexual activity, with effects lasting up to 36 hours.
  • Daily dosing involves taking a lower strength tablet (2.5mg or 5mg) each day to maintain a steady level of medication, reducing the need for precise timing. Men who require frequent treatment may find daily dosing more convenient.

How Long Does It Take for Tadalafil to Work?

  • With on-demand use, tadalafil typically begins to work within 2 hours and remains effective for up to 36 hours.
  • When taken daily, it may take up to 5 days for the full benefits to build up, after which the medication works continuously.

Does Tadalafil Work All the Time?

Tadalafil usually offers a consistent and predictable response. However, conditions like nerve damage or other physical injuries may affect its effectiveness. In such cases, alternative treatments such as injections or penile implants might be required. If ED has a psychological component, counseling can also be beneficial.

Why Take Tadalafil?

One major advantage of tadalafil is its long-lasting effect. While other ED medications like Viagra work for about 4 hours, tadalafil can last up to 36 hours, earning it the nickname "The Weekend Pill." This extended window allows for greater spontaneity without the need for strict timing.

What is "The Weekend Pill"?

Cialis, or tadalafil, is often called "The Weekend Pill" due to its prolonged duration of action. Approved in the UK in 2003, it quickly became popular because its long-lasting effects and the option for low-dose daily use provide flexibility in managing ED.

Where to Buy Tadalafil 20mg Tablets?

Courierpharmacy.co.uk is a reliable online platform where you can purchase both generic tadalafil and branded Cialis.

  • If you already have a prescription, visit courierpharmacy.co.uk for overnight shipping on most days.
  • If you need a prescription, our online doctor service can assist you after you complete the consultation form on courierpharmacy.co.uk.

For more details or to buy Tadalafil 20mg tablets online, complete the online consultation form at courierpharmacy.co.uk.

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Download patient leaflet

https://www.medicines.org.uk/emc/files/pil.9363.pdf

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August 11, 2026
Written By
Shazlee Ahsan
BSc Pharmacy, Independent Prescriber, PgDip Endocrinology, MSc Endocrinology, PgDip Infectious Diseases

Superintendant Pharmacist, Independent Prescriber


August 11, 2024

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