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Catalin

Ask a doctor about a prescription for Catalin

5.0(102)
Doctor

Alina Tsurkan

Family medicine12 years of experience

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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This page is for general information. Consult a doctor for personal advice. Call emergency services if symptoms are severe.
About the medicine

How to use Catalin

Leaflet attached to the packaging: information for the user

Catalin

0.75 mg, tablet and solvent for preparing eye drops

Pirenoxine

Please read the contents of the leaflet carefully before using the medicine, as it contains important information for the patient.

  • Please keep this leaflet, so that you can read it again if necessary.
  • In case of any doubts, please consult a doctor or pharmacist.
  • This medicine has been prescribed specifically for this person. Do not pass it on to others. The medicine may harm another person, even if their symptoms are the same.
  • If the patient experiences any side effects, including any side effects not listed in this leaflet, they should inform their doctor or pharmacist. See section 4.

Table of contents of the leaflet:

  • 1. What is Catalin and what is it used for
  • 2. Important information before using Catalin
  • 3. How to use Catalin
  • 4. Possible side effects
  • 5. How to store Catalin
  • 6. Contents of the packaging and other information

1. What is Catalin and what is it used for

Catalin is indicated for the treatment of age-related cataracts. The active substance of Catalin is pirenoxine. The packaging contains a tablet and a solvent; the tablet is light orange and the solvent is clear and colorless. Although the cause of cataract formation has not been fully explained, it is believed that lens clouding occurs due to the conversion of its soluble proteins into insoluble proteins. Catalin inhibits and prevents the progression of cataracts.

2. Important information before using Catalin

When not to use Catalin

If the patient is allergic to pirenoxine or any of the other ingredients of this medicine (listed in section 6).

Warnings and precautions

Before starting to use Catalin, the patient should discuss it with their doctor or pharmacist.

Catalin and other medicines

The patient should tell their doctor about all medicines they are currently taking or have recently taken, as well as any medicines they plan to take. There is no data on interactions with other medicines or other types of interactions.

Using Catalin with food, drink, and alcohol

Not applicable.

Pregnancy, breastfeeding, and fertility

If the patient is pregnant or breastfeeding, thinks they may be pregnant, or plans to have a child, they should consult their doctor before using this medicine. There is no data on the safety of using Catalin during pregnancy and breastfeeding.

Driving and using machines

Catalin does not affect the ability to drive or use machines.

Catalin contains excipients: methyl parahydroxybenzoate, propyl parahydroxybenzoate

which may cause allergic reactions (possible late reactions).

3. How to use Catalin

This medicine should always be used according to the doctor's or pharmacist's recommendations. In case of doubts, the patient should consult their doctor or pharmacist.
Method of preparing the solution
Dissolve the tablet in 15 ml of solvent. A clear, yellow solution is formed.
Available packaging1 tablet and 15 ml of solvent.

White cap removed from the bottle with the medicine, tablet in hand

Remove the white
cap from the
bottle.
Open the
tablet packaging and
put it into the
bottle. Do not
touch the tablet
directly.
Before use,
remove the brown
stopper.
Instill into the eye.
Do not touch the eye
with the dropper tip.
Close the bottle
tightly and
shake until the
tablet is dissolved.
Method of administration:

  • 1. Prepare the bottle with the medicine and a mirror.
  • 2. Wash your hands.
  • 3. Remove the stopper.
  • 4. Take the bottle in your hand and point it upwards, holding it with your thumb and middle finger.
  • 5. Tilt your head back. With a clean finger, pull the lower eyelid down to form a "pocket"; the drop should fall into it.
  • 6. Bring the dropper tip close to the eye. You can use a mirror to help.
  • 7. Do not touch the dropper tip to the eye, eyelid, or surrounding areas.This can cause infection. Using infected drops can lead to serious complications, even vision loss.
  • 8. To release a single drop of the medicine, gently squeeze the bottom of the bottle.
  • 9. If the drop does not fall into the eye, try again.
  • 10. After instilling the medicine, gently close your eye and press the corner of your eye near your nose for at least one minute. This will help prevent the medicine from entering the entire body.
  • 11. If using drops for both eyes, repeat the above procedure to instill the drop into the other eye.
  • 12. Immediately after using the medicine, put the stopper back on.

Dosage
Instill 1 or 2 drops into the conjunctival sac 3 to 5 times a day.

Using a higher dose of Catalin than recommended

There are no known symptoms of overdose of Catalin in humans. An antidote is not necessary, as overdosing on pirenoxine is practically impossible.

4. Possible side effects

Like all medicines, Catalin can cause side effects, although not everybody gets them.
If the patient experiences any allergic reactions, including rash, swelling of the face, lips, tongue, and/or throat, which may cause difficulty breathing or swallowing, or other serious side effects, they should stop using Catalin and contact their doctor or the Emergency Department of the nearest hospital immediately.
During treatment with Catalin, the following may occur:
Rarely (less than 1 in 1000 people):
diffuse superficial keratitis, blepharitis, conjunctival hyperemia, pain, itching.
Reporting side effects
If any side effects occur, including any side effects not listed in this leaflet, the patient should inform their doctor, pharmacist, or nurse. Side effects can be reported directly to the Department of Monitoring of Adverse Reactions to Medicinal Products of the Office for Registration of Medicinal Products, Medical Devices, and Biocidal Products:
Al. Jerozolimskie 181C,
02-222 Warsaw,
tel.: +48 22 49 21 301
fax: +48 22 49 21 309
e-mail: [email protected]
Side effects can also be reported to the marketing authorization holder.
By reporting side effects, more information can be gathered on the safety of the medicine.

5. How to store Catalin

The medicine should be stored out of sight and reach of children.
Do not use this medicine after the expiry date stated on the carton and label.
Store in a temperature below 25°C. After preparing the solution, store it in a cool place, protected from light. Shelf life after dissolving the tablet: 20 days.

6. Contents of the packaging and other information

What Catalin contains

The active substance of Catalin is pirenoxine in the form of sodium salt, in a dose of 0.75 mg.
The other ingredients are:

  • in the tablet: taurine, boric acid;
  • in the solvent: boric acid, potassium chloride, sodium tetraborate, methyl parahydroxybenzoate, propyl parahydroxybenzoate, purified water.

What Catalin looks like and what the packaging contains

The carton contains a tablet placed in a blister pack made of Al/PCV film and a solvent placed in a 15 ml PP bottle. The tablet is light orange, and the solvent is clear and colorless.

Marketing authorization holder

Senju Poland Sp. z o.o.
Rondo Ignacego Daszyńskiego 2B,
00-843 Warsaw
tel.: +48 22 236 05 05
e-mail: [email protected]

Importer who releases the series:

PROFARM PS Sp. z o.o.
ul. Słoneczna 96
05-500 Stara Iwiczna
FARMACOL S.A.
ul. Szopienicka 77
40-431 Katowice
Synoptis Industrial Sp. z o.o.
ul. Rabowicka 15
62-020 Swarzędz
To obtain more detailed information, please contact the marketing authorization holder.
Date of last update of the leaflet:07/2024

  • Country of registration
  • Prescription required
    Yes
  • Importer
    FARMACOL S.A. PROFARM PS Sp. z o.o. Synoptis Industrial Sp. z o.o.
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Alternatives to Catalin in other countries

The best alternatives with the same active ingredient and therapeutic effect.

Alternative to Catalin in Ukraine

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Alternative to Catalin in Spain

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Prescription required
Dosage form: EYEDROP, 2 mg/1 package
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Prescription not required
Dosage form: EYE DROP, 0.9% sodium chloride
Manufacturer: Laboratorios Thea S.A.
Prescription not required

Online doctors for Catalin

Discuss dosage, side effects, interactions, contraindications, and prescription renewal for Catalin – subject to medical assessment and local rules.

5.0(102)
Doctor

Alina Tsurkan

Family medicine12 years of experience

Dr. Alina Tsurkan is a licensed family medicine physician based in Portugal, offering online consultations for adults and children. She provides professional primary care, with a focus on prevention, accurate diagnosis, and long-term management of acute and chronic conditions.

Dr. Tsurkan supports patients with a wide range of health issues, including:

  • Respiratory infections: cold, flu, bronchitis, pneumonia, and lingering coughs.
  • ENT conditions: sinusitis, tonsillitis, otitis (ear infections), sore throat, allergic rhinitis.
  • Eye conditions: allergic or infectious conjunctivitis, red eyes, irritation.
  • Digestive issues: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), constipation, bloating, nausea.
  • Urinary and reproductive health: urinary tract infections (UTIs), cystitis, prevention of recurrent infections.
  • Chronic diseases: hypertension, elevated cholesterol, weight management.
  • Neurological complaints: headaches, migraines, sleep disturbances, fatigue, general weakness.
  • Children’s health: fever, infections, digestive issues, follow-ups, vaccination guidance.

She also provides:

  • IMT medical certificates for driving licence exchange in Portugal.
  • Personalised preventive care and wellness consultations.
  • Interpretation of test results and medical reports.
  • Follow-up care and medication review.
  • Support in managing multiple coexisting conditions.
  • Remote prescription management and medical documentation.

Dr. Tsurkan’s approach is evidence-based and holistic. She works closely with each patient to develop an individualised care plan that addresses both symptoms and root causes. Her goal is to empower patients to take control of their health and maintain well-being through lifestyle adjustments, routine check-ups, and early intervention.

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Dr. Bessolitsyna offers a personalised and structured approach — helping patients identify causes of joint pain, interpret test results, and follow tailored treatment plans. Her consultations focus on early diagnosis, symptom control, complication prevention, and improving long-term quality of life.

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