Leaflet: Information for the user

Citax 5 mg film-coated tablets EFG

Tadalafil

Read this leaflet carefully before you start taking this medicine, because it contains important information for you.

-Keep this leaflet, as you may need to read it again.

-If you have any questions, ask your doctor or pharmacist.

-This medicine has been prescribed for you only. Do not give it to others even if they have the same symptoms as you, as it may harm them.

-If you experience any side effects, consult your doctor or pharmacist, even if they are not listed in this leaflet. See section 4.

1.What is Citax and what it is used for

2.What you need to know before starting to take Citax

3.How to take Citax

4.Possible side effects

5Storage of Citax

6.Contents of the pack and additional information

This medication contains the active ingredient tadalafil, which belongs to a group of medications called phosphodiesterase type 5 inhibitors.

Tadalafil is used to treat men with:

• Impotence.This is when a man is unable to obtain or maintain a firm erection, which is suitable for a satisfactory sexual activity. Tadalafil has shown a significant improvement in the ability to obtain a lasting erection of the penis suitable for sexual activity.

After sexual stimulation, tadalafil acts by helping to relax the blood vessels of the penis, allowing blood to flow into the penis. The result is an improvement in erectile function. Tadalafil will not help if you do not have impotence. It is essential to inform you that tadalafil is not effective without sexual stimulation. Therefore, you and your partner should stimulate yourselves in the same way as you would without taking a medication for impotence.

-Urinary symptoms associated with a common disease calledbenign prostatic hyperplasia. This occurs when the prostate gland increases in size over time. Symptoms include difficulty starting to urinate, feeling that the bladder has not been completely emptied, the need to urinate more frequently, even at night. Tadalafil improves blood flow and relaxes the muscles of the prostate and bladder, which may reduce the symptoms of benign prostatic hyperplasia. Tadalafil has shown to improve these urinary symptoms in as short a time as 1-2 weeks after starting treatment.

Do not take Citax

-If you are allergic to tadalafil or any of the other components of this medication (listed in section 6).

-If you are taking any type of organic nitrates or nitric oxide donors such as amyl nitrite. This is a group of medications (“nitrates”) used to treat angina pectoris (“chest pain”). Tadalafil has been seen to increase the effects of these medications. If you are taking any type of nitrates or are unsure, tell your doctor.

-If you have a serious heart disease or have had a recent heart attack, within the last 90 days.

-If you have had a recent stroke, within the last 6 months.

-If you have low or uncontrolled high blood pressure.

-If you have ever had vision loss due to non-arteritic anterior ischemic optic neuropathy (NAION), a disease described as “eye infarction”.

-If you are taking riociguat. This medication is used to treat pulmonary arterial hypertension (i.e., high blood pressure in the lungs) and chronic thromboembolic pulmonary hypertension (i.e., high blood pressure in the lungs caused by clots). Phosphodiesterase type 5 inhibitors, such as tadalafil, have shown to increase the hypotensive effect of this medication. If you are taking riociguat or are unsure, consult your doctor.

Warnings and precautions

Consult your doctor before starting to take this medication.

Be aware that sexual intercourse carries a possible risk for patients with heart problems, due to the additional effort it imposes on the heart. If you have a heart problem, consult your doctor.

Since benign prostatic hyperplasia and prostate cancer can have the same symptoms, your doctor will perform a prostate cancer review before starting treatment with tadalafil for benign prostatic hyperplasia. Tadalafil does not treat prostate cancer.

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

• Thalassemia (a blood disorder).
• Multiple myeloma (bone marrow cancer).
• Leukemia (blood cancer).
• Any deformity of the penis.
• Severe liver disease.
• Severe kidney disease.

Tadalafil is not known to be effective in patients who have undergone:

• Pelvic surgery.
• A surgical intervention in which the prostate has been completely or partially removed and the prostate nerves have been cut (radical prostatectomy without neurovascular bundle preservation).

If you experience a decrease or sudden loss of vision or your vision is distorted or blurred while taking tadalafil, stop taking tadalafil and immediately contact your doctor.

Sudden decrease or loss of hearing has been observed in some patients taking tadalafil. Although it is not known if the event is directly related to tadalafil, if you experience a decrease or sudden loss of hearing, stop taking tadalafil and immediately contact your doctor.

Tadalafil is not intended for use in women.

Children and adolescents

This medication should not be used in children or adolescents under 18 years old.

Taking Citax with other medications

Inform your doctor or pharmacist if you are taking, have taken recently, or may need to take any other medication.

Do not take tadalafil if you are already using nitrates.

Some medications may be affected by tadalafil or may affect the proper functioning of tadalafil. Inform your doctor or pharmacist if you are using:

• An alpha blocker (used to treat high blood pressure or urinary symptoms associated with benign prostatic hyperplasia).
• Other medications to treat high blood pressure.
• Riociguat.
• A 5-alpha reductase inhibitor (used to treat benign prostatic hyperplasia).
• Medications such as ketoconazole tablets (for the treatment of fungal infections) and protease inhibitors for the treatment of HIV/AIDS or HIV infection.
• Phenobarbital, phenytoin, and carbamazepine (anticonvulsant medications).
• Rifampicin, erythromycin, clarithromycin, or itraconazole.
• Other treatments for erectile dysfunction.

Taking Citax with food, drink, and alcohol

Information about the effect of alcohol can be found in section 3. Grapefruit juice may affect the proper functioning of tadalafil and should be taken with caution. Consult your doctor for more information.

Fertility

In dogs treated, a decrease in sperm production by the testicles was observed. A decrease in sperm count has been observed in some men. It is unlikely that these effects will cause infertility.

Driving and operating machinery

Some men who took tadalafil during clinical trials experienced dizziness. Check carefully how you react when taking the tablets before driving or operating machinery.

Citax contains lactose

This medication contains lactose. If your doctor has indicated that you have a lactose intolerance, consult with them before taking this medication.

Follow exactly the administration instructions for this medication as indicated by your doctor. In case of doubt, consult your doctor or pharmacist again.

Tadalafil tablets are for oral administration only in men. Swallow the tablet whole with a little water. Tablets can be taken with or without food.

Consuming alcohol may temporarily lower your blood pressure. If you have taken or are considering taking tadalafil, avoid excessive alcohol consumption (blood alcohol level of 0.08% or higher), as it may increase the risk of dizziness when standing up.

For the treatment of erectile dysfunction

The recommended doseis one 5 mg tablet once a day, approximately at the same time. Your doctor may adjust the dose to 2.5 mg based on your response to tadalafil. This will be done by taking one 2.5 mg tablet.

Do not take tadalafil more than once a day.

Daily tadalafil administration allows you to obtain an erection at any time during the 24 hours of the day, as long as there is sexual stimulation. Daily tadalafil administration may be useful for men who anticipate engaging in sexual activity two or more times a week.

It is essential to inform you that tadalafil is not effective without sexual stimulation. Therefore, you and your partner should stimulate yourselves in the same way you would without taking a medication for erectile dysfunction.

Consuming alcohol may affect your ability to have an erection.

For the treatment of benign prostatic hyperplasia

The doseis one 5 mg tablet once a day, approximately at the same time.

If you have benign prostatic hyperplasia and erectile dysfunction, the dose remains one 5 mg tablet once a day.

Do not take tadalafil more than once a day.

If you take more Citax than you should

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately, or call the Toxicological Information Service, phone: 91 562 04 20, indicating the medication and the amount ingested. It is recommended to bring the packaging and the medication leaflet to the healthcare professional.

You may experience adverse effects described in section 4.

If you forgot to take Citax

Take your dose as soon as you remember, but do not take a double dose to compensate for the missed doses. Do not take tadalafil more than once a day.

If you have any other questions about the use of this medication, ask your doctor or pharmacist.

Like all medicines, this medicine can cause side effects, although not everyone will experience them. These effects are generally mild to moderate in intensity.

If you experience any of the following side effects, stop using the medicine and seek medical help immediately:

• Allergic reactions, including rashes (infrequent).
• Chest pain – do not use nitrates but seek medical help immediately (infrequent).
• Priapism, a prolonged and possibly painful erection after taking tadalafil (rare frequency). If you experience this type of erection, which can last for more than 4 hours, you must contact a doctor immediately.
• Sudden loss of vision (rare frequency), distorted, blurred, central vision blurred, or sudden decrease in vision (unknown frequency).

Other side effects that have been reported:

Frequent(observed in 1 to 10 of every 100 patients)

• Headache, back pain, muscle pain, arm and leg pain, facial flushing, nasal congestion, and indigestion.

Infrequent(observed in 1 to 10 of every 1,000 patients)

• Dizziness, stomach pain, nausea, vomiting, reflux, blurred vision, eye pain, difficulty breathing, blood in the urine, prolonged erection, palpitations, rapid heartbeat, high blood pressure, low blood pressure, nasal bleeding, ringing in the ears, swelling of the hands, feet, or ankles, and feeling tired.

Rare(observed in 1 to 10 of every 10,000 patients)

• Loss of consciousness, seizures, and temporary loss of memory, eyelid swelling, red eyes, sudden decrease or loss of hearing, and urticaria (red itchy patches on the skin's surface), bleeding in the penis, blood in the semen, and increased sweating.

Also, rare cases of heart attack and stroke have been reported in men taking tadalafil. Most of these men had some heart problem before taking this medicine.

Rarely, cases of partial or permanent loss of vision, temporary or permanent, in one or both eyes have been reported.

Some rare additional side effects have been reported in men taking tadalafil that were not reported during clinical trials. These include:

• Migraine, facial swelling, severe allergic reaction that causes facial or throat swelling, severe skin rashes, certain disorders affecting blood flow to the eyes, irregular heartbeat, angina, and sudden cardiac death.
• Distorted, blurred, central vision blurred, or sudden decrease in vision (unknown frequency)

In men over 75 years old taking tadalafil, the most frequently reported side effect was dizziness. In men over 65 years old taking tadalafil, the most frequently reported side effect was diarrhea.

Reporting side effects

If you experience any type of side effect, consult your doctor or pharmacist, even if it is a possible side effect not listed in this prospectus. You can also report them directly through the Spanish System for Pharmacovigilance of Medicines for human use:www.notificaRAM.es. By reporting side effects, you can contribute to providing more information on the safety of this medicine.

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

Do not use this medication after the expiration date that appears on the packaging after “CAD”. The expiration date is the last day of the month indicated.

This medication does not require special storage conditions.

Medications should not be disposed of through drains or in the trash. Dispose of packaging and medications you no longer need at the SIGRE collection point at your pharmacy.If in doubt, ask your pharmacist how to dispose of packaging and medications you no longer need.By doing so, you will help protect the environment.

Composition of Citax

-The active ingredient is tadalafil. Each film-coated tablet contains 5 mg of tadalafil.

-The other components are:

-Tablet core: lactose monohydrate, hydroxypropylcellulose, sodium croscarmellose, sodium lauryl sulfate, microcrystalline cellulose, and magnesium stearate.

-Coating: Opadry II Yellow 31K220010 containing lactose monohydrate, hypromellose, titanium dioxide (E-171), yellow iron oxide (E-172), and triacetin (E-1518).

Appearance of the product and content of the packaging

Film-coated tablets of pale yellow color, round, scored on one face, and marked with a “5” on the other.

The score is not for splitting the tablet.

This medication is available in blister packs containing 28 tablets.

Holder of the marketing authorization and responsible manufacturer

Kern Pharma, S.L.

Venus, 72 - Pol. Ind.Colón II

08228 Terrassa - Barcelona

Spain

Last review date of this leaflet: October 2023

The detailed and updated information on this medication is available on the website of the Spanish Agency for Medicines and Medical Devices (AEMPS)http://www.aemps.gob.es/