Cialis (Tadalafil)

Order Consultation for Erectile Dysfunction Treatment

4 pack of Cialis 10mg tadalafil film-coated tablets
Packet front of Cialis four 20mg film-coated tablets
The back of a packet containing four 10mg film-coated tablets of Cialis
A blister pack of two Cialis tablets
Two yellow Cialis 20mg film-coated tablets

Cialis is a licensed medication for the treatment of erectile dysfunction (ED).

Like other ED treatments, Cialis takes effect within 30 minutes of taking the tablet, helping you to gain and maintain an erection. Cialis is effective for up to 36 hours after taking the tablet.

To place a prescription order for erectile dysfunction treatment, fill in our brief questionnaire. You can choose a preferred treatment, such as Cialis.

One of our doctors will check if the medication is suitable for you and issue your prescription to a local pharmacy in Ireland or your home address.

A consultation for erectile dysfunction treatment prescription costs €20.


Medical consultation with prescription if necessary - €20.00
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About Cialis

Cialis vs. Viagra - what's the difference?

The main difference between Cialis and Viagra lies in how long they are effective for. Cialis works for a period of up to 36 hours. This means, if you are sexually stimulated within this period of time, Cialis will help you get an erection. It is often referred to as a “weekend pill”, as it allows you to have spontaneous sex several times during the specified window of time.

Viagra, however, will usually only be effective for up to four hours and therefore requires that you plan ahead. Both Viagra and Cialis take 30 to 60 minutes to start working, so you should take the tablet at least half an hour before sex.

Cialis dosage

Cialis tablets come in 2.5mg, 5mg, 10mg and 20mg doses. The dosage of your Cialis tablets tells you how much of the medicine is in them. As a rule, the higher the dose, the stronger the medication.

10mg or 20mg Cialis tablets are to be taken as and when you need them. Take your tablet about 30 to 60 minutes before you are going to have sex.

If you’re expecting to have regular sex, your doctor might recommend that you take Cialis daily 5mg tablets. 5mg doses of Cialis are suitable for taking every day.

How is Cialis taken

You should take Cialis 10mg or 20mg tablets on an 'as needed' basis. This means taking it around 30 to 60 minutes prior to sex. The tablets can be taken either with or without food and should be taken with a full glass of water. If you expect to have sex on a regular basis, you may prefer to take daily 2.5mg or 5mg doses of Cialis. You will need to discuss this dosage with your doctor, as it may not be suitable for you.

Common Cialis side effects

  • headache
  • indigestion or heartburn
  • dizziness
  • flushing
  • nasal congestion
  • back pain
  • muscle pain (myalgia)
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Medically reviewed by:
Dr Nicholas Antonakopoulos

Dr Nicholas Antonakopoulos graduated from the University of London in 2006. He did his postgraduate training in hospitals in the London area, and he trained for four years in Trauma and Orthopaedic Surgery before completing his training in General practice in 2015.

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Last reviewed: 26 Feb 2019



Erectile Dysfunction Treatments

Zava offers a convenient and discreet service to help men improve their erectile dysfunction. There are a number of treatments you can consider. Continue to our erectile dysfunction service page to learn about the treatment options available.