Cialis

  • Take 30 minutes before Sexual Intercourse
  • Used to successfully treat Erectile Dysfunction in Men
  • Lasts much longer than other ED treatments

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Cialis (Tadalafil) tablets for erectile dysfunction

Erectile dysfunction can unexpectedly affect many men in their lifetime, for some it will become a persistent problem that will require treatments such as Cialis (Tadalafil).

Erectile dysfunction is a condition that is easy to treat with a range of conditions. Cialis (tadalafil) is clinically proven to be effective at treating erectile dysfunction and is one of the most widely prescribed treatments.

You can buy Cialis online at Medicine Direct following a consultation with one of our UK prescribers.

What is Cialis (Tadalafil)?

Cialis is the brand name for a medicine known as tadalafil, which is a medication used in the treatment of erectile dysfunction (ED) and prostate enlargement in men.

Tadalafil is known to last much longer than sildenafil (the active ingredient in Viagra tablets), making Cialis a renowned treatment for erectile dysfunction.

You need a prescription to buy Cialis tablets.

What is Cialis used to treat?

Cialis (tadalafil) is used to treat erectile dysfunction and the symptoms of an enlarged prostate (benign prostate enlargement).

Erectile dysfunction can be a stressful and embarrassing problem for men to deal with. Therefore, using a treatment like Cialis can work to relieve this stress by allowing you to enjoy normal sexual activity without the fear of not being able to gain or maintain an erection.

The active ingredient in Cialis is tadalafil. It is known to work quickly, taking just 30 minutes to become effective. A benefit of Cialis over other erectile dysfunction medicines is that the effects of this tablet can last for up to 36 hours.

How does Cialis work?

Cialis tablets contain tadalafil, which belongs to a group of medicines known as PDE-5 (phosphodiesterase type 5) inhibitors. It works by relaxing the blood vessels that flow to the penis. Doing this means that more blood can flow to the penis, making it much easier for you to gain and keep an erection.

Cialis will not work on men who are not suffering from erectile dysfunction.

Cialis will only work if you are sexually aroused, so you and your partner should still engage in foreplay to gain an erection.

Cialis dose

Cialis tablets come in doses of either 5mg, 10mg or 20mg. The recommended starting dose is normally 10mg, although some people are prescribed higher or lower doses than this if their doctor deems it to be more suitable.

Always take the dosage your doctor has prescribed for you. Tell them if you think this is too weak or too strong.

Do not take more than one dose in 24 hours.

Cialis 2.5mg tablets

This lowest strength dose of Cialis is taken as a daily tablet. If you experience side effects from taking the 5mg dose, you will be reviewed and prescribed this lower strength form of the medicine as it means that 5mg was too powerful for you.

Cialis 5mg tablets

If you are using the daily dose variant of Cialis, you will generally be prescribed the 5mg strength tablet by your doctor. The two daily doses work in the same way; the only difference is the strength of the medicine.

Cialis 10mg tablets

This is not the daily dose. It should not be taken more than once a day, and is not recommended for continuous daily administration. It is intended to be taken prior to anticipated sexual activity.

Cialis 20mg tablets

20mg is the strongest dose of Cialis. It will be prescribed by your doctor if lower doses have not proved effective. It is not intended or recommended for continuous daily use, and should only be taken once in a day. Its effects can last up to 36 hours.

How to take Cialis

Take Cialis at least half an hour before you have sex.

Swallow the tablet whole with a glass of water, do not crush or chew it.

You can take Cialis with or without food.

It is important to remember that you will need to be sexually stimulated in order for Cialis to work properly. For this reason, you and your partner should still engage in foreplay to arouse you, as you would normally do, once the medication has been taken.

Read the patient information leaflet for a full list of instructions. Ask your doctor if you are unsure of anything.

Who can take Cialis?

Cialis (tadalafil) tablets may not be suitable for everyone to use.

Do not take Cialis if any of the below apply to you:

  • You have uncontrolled high blood pressure or low blood pressure
  • You have recently had a stroke or a heart attack
  • You are allergic to tadalafil or any other ingredients in this medicine
  • You have had an allergic reaction to Cialis or any other medicine in the past
  • You have ever lost your vision because of a reduced blood flow to the eyes
  • You have a serious heart or liver problem
  • You are taking any nitrate medicines for chest pain

Tadalafil tablets such as Cialis are not suitable for any children or adolescents under the age of 18 years old.

Cialis contains lactose, so if your doctor has told you that you are intolerant to certain sugars, make sure you speak to your doctor before using this medication.

This information is not exhaustive. Always read the patient information leaflet for a complete list of warnings.

Cialis common side effects

As is the case with all medicines, Cialis comes with the risk of certain adverse effects, although they will not affect all men who use it.

Below is a list of common side effects, which may affect 1 in every 100 men who use these tablets.

Keep taking Cialis if you do experience any of the following reactions, but inform your doctor or pharmacist if any of these symptoms concern you or do not go away:

  • Indigestion
  • Congestion in the nose
  • Headaches
  • You feel sick
  • You get a red or flushed face
  • You get muscle aches
  • Pain in your arms and legs
  • Back pain

Less common effects may include:

  • Stomach aches
  • Dizziness
  • Blood in your urine
  • Vomiting
  • Low blood pressure
  • Swelling in your hands, feet, or ankles
  • Reflux
  • Feeling tired
  • A fast heart rate
  • Breathing difficulties
  • A pounding heartbeat

Please note, the above lists are not exhaustive. Please refer to the Side Effects tab for a list of rarer and more serious reactions you may suffer while using this medicine.

Read the patient information leaflet for a comprehensive list of adverse effects.

If you are worried about them, please discuss this with your doctor or pharmacist before you start to use the tablets.

Can you buy Cialis over the counter?

No, Cialis is a prescription-only medicine (POM), meaning you must have been prescribed it by a doctor.

Can you buy Cialis online in the UK?

To buy Cialis online from Medicine Direct, you will first need to complete a confidential online questionnaire. This is so one of our prescribers can review your condition and medical history to make sure this medicine is suitable for you to take. We can offer you next day delivery if you place your order by 2pm.

Do not buy any type of medicine online unless it is from a regulated pharmacy, like Medicine Direct. This will ensure you only purchase medication that is safe, genuine and approved for sale in the UK by the MHRA. You can find out more on our About Us page.

Cialis alternatives

Viagra is probably the most famous treatment for erectile dysfunction. Viagra contains sildenafil and is also available to buy from Medicine Direct.

Spedra is another ED medication that gets to work in around the same time as Cialis. The effects of this medicine generally last for around 4 hours.

Vitaros cream is a topical treatment for erectile dysfunction and may be a handy alternative for men who find it difficult to swallow whole tablets. The cream is inserted into the opening of the penis and helps to widen the blood vessels of the penis, making it easier to gain an erection.

Cialis Indications and Dose

Cialis (tadalafil) is available to buy in various doses. It can ether be taken in its daily dosage strength of between 2.5mg to 5mg, or as a 36-hour dose which typically comes in 10mg to 20mg strengths.

Cialis Daily: This is the only erection pill that you can take every day and so build up a continuous ability to get an erection. It means that the patient does not need to plan intercourse.

Our pharmacists and prescribers follow NICE prescribing guidelines when prescribing Cialis.

What if I take too much?

If you accidentally overdose on tadalafil tablets, it may result in certain unpleasant side effects, which can include:

  • Feeling dizzy
  • Headaches
  • Stuffy nose
  • Blurred vision or other eyesight problems
  • Indigestion

These reactions will normally go away when you stop using the tablets. Speak to your doctor if you are worried about these reactions, or if they do not go away.

How to store Cialis tablets

You must keep Cialis (tadalafil) tablets out of reach and sight of children. Store in its package to prevent moisture damage. Do not store it anywhere above 30C.

Will Cialis improve my libido?


No, Cialis will not have any effect on your sex drive, it will just help you to gain an erection. Even then, you must still be aroused sexually for Cialis to work properly.

How effective is it?


An average of 6/10 men reported getting harder erections after taking tadalafil. If you find that it does not give you an erection, your dose may be wrong, you may not be aroused or you may have left too long a gap between taking it and attempting sex.

How long does it take to work?


Cialis will normally start to work after around 30 minutes. You should still engage in foreplay with your partner for it to work.

How often can I take Cialis?


You should not take Cialis more than once in 24 hours, unless you are using the daily doses of 2.5mg and 5mg.

How long does Cialis work for?


You should find that Cialis helps you to get an erection at any point between 30 minutes and 36 hours after you take it. You should lose your erection after you have completed sexual intercourse.

Can a woman take tadalafil?


Tadalafil is sometimes prescribed for pulmonary hypertension in women. However, women should not take this medicine for any sexual reasons and should never use it unless it is prescribed by a doctor.

Can I drink alcohol while I take it?


Drinking a small amount of alcohol is unlikely to delay or hinder Cialis. However, erectile dysfunction can be exacerbated by drinking large quantities of alcohol, so you should not drink more than a moderate amount.

When should I take Cialis?


You should take your prescribed dose of Cialis at least 30 minutes before you plan to have sex. Make sure you are sexually aroused after taking it, otherwise it will not work.

Is Cialis bad for the heart?


Men who have had a heart attack or serious heart disease in the last 90 days should not take Cialis. Sexual activity puts extra strain on the heart and can be a health risk to people who suffer from heart disease. Make sure your doctor is aware if you have any heart problems.

Will any herbal remedies work as well?


A number of treatments claim to be a herbal form of Cialis, but none of them have ever been approved as an erectile dysfunction treatment. You should speak to your doctor if you are suffering from ED, as herbal remedies may be unsafe or fake.

Do I need a prescription for Cialis in the UK?


Yes, Cialis is a prescription only medicine. This medicine will need to be prescribed to you by a doctor or prescriber.

Will Cialis increase the size of my erection?


Cialis will ensure that your erection is as firm as possible. Cialis may make your erections harder and firmer, which may appear bigger than your usual erection, especially if you struggled to maintain an erection. However it will not increase the size of your penis beyond its natural size.

Will Cialis make me last longer in bed?


No, Cialis will not make you last longer in bed.

Cialis Side Effects

The more common adverse effects of these tablets can be found on the main page.

Rarer side effects of Cialis may include:

  • Red eyes
  • Penile bleeding
  • Increased sweating
  • Blood in your semen

You should stop taking these tablets and seek immediate medical attention if you suffer any of the below side effects:

  • You have fits or seizures
  • You have serious facial swelling, including eyelid swelling, red raised patches on your skin, swollen face
  • You have any sudden problems with your eyesight or your hearing
  • You have chest pains (try to relax in a semi-sitting position if you experience them while having sex)
  • Prolonged and/or painful erections (call a doctor immediately if it lasts for longer than 4 hours)

Serious allergic reaction

In rare cases, it is possible to suffer a serious allergic reaction to tadalafil (Cialis). You must either call 999 or go to A&E immediately if you exhibit any of the following symptoms.

You may require urgent treatment in hospital if:

  • You get a skin rash that may be red, itchy, swollen, blistered or peeling skin
  • You are wheezing
  • You have tightness in your chest or throat
  • You are finding it difficult to breathe or speak
  • You have swelling in your throat, mouth, face, lips, or tongue

These lists may not be exhaustive. Always read the patient information leaflet for a comprehensive list of side effects and how to cope with them, before you start to take a new medicine.

Cialis Warnings and drug interactions

Before you start taking these tablets, it is very important that you inform your doctor if you are already taking any other form of medication. This includes both prescription and non-prescription medication, herbal remedies, vitamins and supplements.

In particular, inform your doctor if you are taking any of the below:

  • Riociguat
  • Any 5-alpha reductase inhibitors
  • Any medicines to treat high blood pressure
  • Any alpha blockers
  • Medicines like ketoconazole tablets (for fungal infections) and protease inhibitors (for HIV and AIDS)
  • Anticonvulsant medicines, phenobarbital, phenytoin and carbamazepine
  • Any other erectile dysfunction treatments
  • Rifampicin, erythromycin, clarithromycin or itraconazole

Do not take Cialis if you are already taking any nitrates. 

There are many medicines that can interact with Cialis. Always read the patient information leaflet for a comprehensive list of drug interactions.

If you have any questions or concerns, we strongly advise you to discuss these with your doctor before you start taking this medication.

Cialis Ingredients

The main active ingredient within this medicine is: Tadalafil

For a full list of the inactive ingredients, please read the Summary of Product Characteristics

Delivery Company Delivery Service Price Details
Royal Mail UK Delivery Standard UK Tracked £2.99 3 - 4 Working Day Delivery
DPD UK Next Day Delivery Next Day Delivery - Tracked £5.95 Order by 2pm (subject to Dr approval) Next Working Day Delivery
DPD UK Next Day Delivery Next Day Tracked Morning Delivery by 12:00pm £12.95 Next Working Day Morning Delivery by 12:00pm
DPD UK Next Day Delivery Tracked Saturday Delivery £9.95

Delivery specified for Saturday

Order Friday by 2pm (subject to Dr approval)

Please note that next day delivery to Northern Ireland, Scottish Highlands & Islands and British Isles cannot be guaranteed. Please contact our team for more information.

Written byHussain Abdeh MPharm: 2211840

Published on: 12/10/2020

Updated on: 26/05/2021

This content has been written by our Superintendent Pharmacist Hussain Abdeh and has been medically reviewed by our Pharmacist Sonia Khan

Hussain Abdeh Superintendent Pharmacist at Medicine Direct

Hussain Abdeh
MPharm: 2211840

Pharmacist Independent Prescriber

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