Ciastad – Tadalafil uses, dose and side effects


20 mg film-coated tablets 

1. What Ciastad is and what it is used for

Ciastad contains the active substance tadalafil.

Ciastad is a treatment for pulmonary arterial hypertension in adults.

It belongs to a group of drugs called phosphodiesterase type 5 inhibitors (PDE5), which improve blood flow to the lungs by affecting the blood vessels around the lungs so that they relax. The result is improved capacity during physical exertion.

Tadalafil contained in Ciastad may also be approved for the treatment of other conditions not mentioned in this product information. Ask your doctor, pharmacist, or another healthcare professional if you have any further questions, and always follow their instructions.

2. What you need to know before using Ciastad

Do not use Ciastad

Do not take Ciastad if you:

  • is allergic to tadalafil or any of the other ingredients of this medicine (listed in section 6)
  • take medicines that contain nitrates such as amyl nitrite, which are used to treat chest pain. Tadalafil has been shown to increase the effectiveness of these drugs. If you are taking any form of nitrate or are unsure, talk to your doctor
  • have ever before lost their sight – a condition called “stroke in the eye” (non-arteritic anterior ischemic optic neuropathy – NAION).
  • have had a heart attack in the last 3 months
  • have low blood pressure
  • tar riociguat. This medicine is used to treat pulmonary arterial hypertension (ie high blood pressure in the lungs) and chronic thromboembolic pulmonary hypertension (ie high blood pressure in the lungs due to blood clots). PDE5 inhibitors, such as tadalafil, have been shown to increase the antihypertensive effect of this medicine. If you are taking riociguat or if you are not sure, talk to your doctor.

Warnings and cautions

Talk to your doctor before taking Ciastad.

Before taking the tablets, tell your doctor if you have:

  • heart problems other than your high blood pressure in the lungs
  • problems with your blood pressure
  • any hereditary eye disease
  • abnormal red blood cells (sickle cell anemia)
  • bone marrow cancer (multiple myeloma )
  • blood cell cancer ( leukemia )
  • a deformed penis, or an unwanted or persistent erection that lasts for more than 4 hours
  • severe liver disease
  • severe kidney disease.

If you experience a sudden visual impairment or loss of vision, contact your doctor immediately.

Impaired hearing or sudden hearing loss has been noted in some patients taking tadalafil. Although it is not known if the events are related to tadalafil, you should contact your doctor immediately if you experience hearing loss or sudden hearing loss.

Children and young people

Ciastad should not be given to children or adolescents under 18 years of age.

Other medicines and Ciastad

Tell your doctor if you are taking, have recently taken or might take any other medicines.

DO NOT take this medicine if you are already taking nitrates.

Some medicines may be affected by Ciastad or they may affect Ciastad’s effect.

Tell your doctor or pharmacist if you are already taking:

  • bosentan (another medicine used to treat pulmonary arterial hypertension )
  • nitrates (for chest pain)
  • alpha-blockers used to treat high blood pressure or prostate problems
  • riociguat
  • rifampicin (to treat bacterial infections)
  • ketoconazole tablets (to treat fungal infections)
  • ritonavir (for HIV treatment)
  • tablets for erectile dysfunction (PDE5 inhibitors).

Ciastad with food, drink, and alcohol

Alcohol intake can temporarily lower your blood pressure. Avoid consuming large amounts of alcohol (over 5 units of alcohol) when you have taken or plan to take Ciastad as this may increase the risk of dizziness when standing up.

Pregnancy, breastfeeding, and fertility

If you are pregnant or breast-feeding, think you may be pregnant or are planning to have a baby, ask your doctor for advice before using this medicine.

Do not take Ciastad during pregnancy unless clearly necessary and you have discussed this with your doctor.

Do not breast-feed while taking these tablets, as it is not known if the medicine passes into human breast milk. Ask your doctor or pharmacist for advice before taking any medicine during pregnancy or breast-feeding.

Dogs that were treated had reduced sperm development in the testicles. Reduced sperm concentration has been shown in some men. Its effects are unlikely to impair male fertility.

Driving and using machines

Dizziness has been reported. Know how you react to the medicine before driving or using machines.

You are responsible for assessing whether you are fit to drive a motor vehicle or perform work that requires sharpened attention. One of the factors that can affect your ability in these respects is the use of drugs due to their effects and/or side effects. Descriptions of these effects and side effects can be found in other sections. Read all the information in this leaflet for guidance. If you are not sure, talk to your doctor or pharmacist.

Ciastad contains lactose and sodium

If you have been told by your doctor that you have an intolerance to some sugars, contact your doctor before taking this medicine.

This medicine contains less than 1 mmol (23 mg) sodium per tablet, ie essentially ‘sodium-free’. is next to “sodium-free”.

3. How to use Ciastad

Always take this medicine exactly as your doctor has told you. Ask your doctor or pharmacist if you are unsure.

Ciastad is supplied as a 20 mg tablet. The usual dose is two 20 mg tablets once a day. You should take both tablets at the same time, one after the other. Your doctor may have prescribed you only one 20 mg tablet daily if you have mild to moderate liver or kidney problems.

Swallow the tablets with a little water. You can take the tablets regardless of the meal.

If you forget to use Ciastad

Take a dose as soon as you remember it if it is within 8 hours of you taking your dose. DO NOT take a double dose to make up for a forgotten tablet.

If you stop using Ciastad

Do not stop taking your tablets unless your doctor has told you to.

If you have any further questions on the use of this product, ask your doctor or pharmacist.

4. Possible side effects

Like all medicines, this medicine can cause side effects, although not everybody gets them. The side effects are usually mild or moderate in nature.

If you get any of the following side effects, stop using the medicine and see a doctor immediately:

  • allergic reactions with a rash (uncommon)
  • chest pain – do not use nitrates but see a doctor immediately (common)
  • priapism, a prolonged and possibly painful erection after taking Ciastad (rare). If you get an erection that lasts continuously for more than 4 hours, you should contact a doctor immediately
  • sudden loss of vision (rare).

The following side effects have been reported very commonly in patients taking tadalafil (may affect more than 1 in 10 people): headache, redness, nasal congestion, and blocked sinuses, nausea, indigestion (including abdominal pain), muscle aches, back pain and pain or discomfort in the arms and bones.

Other side effects have been reported:

Common (may affect up to 1 in 10 people)

  • blurred vision, low blood pressure, nosebleeds, vomiting, increased or abnormal abdominal bleeding, facial swelling, acid regurgitation, migraine , irregular heartbeat, and fainting.

Uncommon (may affect up to 1 in 100 people):

  • seizures, temporary memory loss, hives, profuse sweating, bleeding from the penis, presence of blood in semen and/or urine, high blood pressure, palpitations, sudden cardiac death, and tinnitus (sound in the ears without external sound source).

PDE5 inhibitors are also used to treat erectile dysfunction in men. Some side effects reported rarely:

  • Partial, temporary, or permanent vision loss or loss of vision in one or both eyes and severe allergic reaction that causes swelling of the face and throat. Sudden deterioration or loss of hearing has also been reported.

Some side effects have been reported in men taking tadalafil for the treatment of erectile dysfunction.

These side effects have not been reported in clinical trials of pulmonary arterial hypertension and therefore the frequency is unknown:

swollen eyelids, pain in the eyes, red eyes, heart attack, and stroke.

Most, but not all, men who reported palpitations, irregular heartbeats, heart attacks, strokes, and sudden cardiac death had known heart problems before taking the drug. It is not possible to determine whether these reactions were directly related to tadalafil.

Reporting of side effects

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly to the Medical Products Agency, By reporting side effects, you can help increase drug safety information. 

5. How to store Ciastad

Keep this medicine out of the sight and reach of children.

Do not use this medicine after the expiry date which is stated on the carton and blister after EXP. The expiration date is the last day of the specified month.

No special storage instructions.

Medicines should not be disposed of via wastewater or household waste. Ask your pharmacist how to dispose of medicines no longer required. These measures will help to protect the environment.

6. Contents of the packaging and other information

Content declaration

The active substance is tadalafil.

One film-coated tablet contains 20 mg of tadalafil.

Other ingredients are:

Tablet core: anhydrous lactose, croscarmellose sodium, sodium lauryl sulfate, hydroxypropyl cellulose, polysorbate 80, magnesium stearate.

Film coating: hypromellose (E464), lactose monohydrate, titanium dioxide (E171), triacetin, talc (E553b), yellow iron oxide (E172).

What the medicine looks like and the contents of the pack

Yellow, capsule-shaped, biconvex, film-coated tablet, marked with “T 20” on one side and smooth on the other.

Available in blister packs containing 14, 28, or 56 tablets.

Not all pack sizes may be marketed.

Marketing Authorization Holder and Manufacturer

Stadastrasse 2-18

61118 Bad Vilbel


Other manufacturers

Genepharm SA

18th Km Marathonos Avenue

Pallini Attiki


Pharmadox Healthcare Ltd

1KW20A Kordin Industrial Park

PLA 3000


Combino Pharm Ltd.

HF60, Hal Far Industrial Estate BBG3000


Centrafarm Services BV

New Donk 9

4879 AC Etten-Leur


Local representative

STADA Nordic ApS

Marielundvej 46A

2730 Herlev


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