Background pattern

Catalin

Ask a doctor about a prescription for Catalin

5.0(96)
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.

CameraBook a video appointment
€55
November 610:00
November 610:40
November 611:20
November 614:00
November 614:40
More times
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.
  • Alternatives to Catalin
    Dosage form: Drops, 3.2 mg/ml
    Prescription not required
    Dosage form: Gel, 50 mg/g
    Active substance: dexpanthenol
    Prescription required
    Dosage form: Gel, 50 mg/g
    Active substance: dexpanthenol
    Prescription required

Alternatives to Catalin in other countries

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

Alternative to Catalin in Ukraine

Dosage form: drops, 40 mg/ml, 5 ml or 10 ml in a vial
Prescription required
Dosage form: drops, 40 mg/ml in 5 ml or 10 ml vials
Manufacturer: AT "Farmak
Prescription required
Dosage form: drops, 5 ml in a bottle
Prescription required
Dosage form: drops, 10 ml in a bottle
Prescription required
Dosage form: drops, 1,000,000 IU
Manufacturer: TOV "FZ "BIOFARMA
Prescription not required

Alternative to Catalin in Spain

Dosage form: EYEDROP, 5 mg/ml
Manufacturer: Kern Pharma S.L.
Prescription not required
Dosage form: OPHTHALMIC GEL, 1.25 mg carbomer
Manufacturer: Laboratorios Thea S.A.
Prescription not required
Dosage form: OPHTHALMIC GEL, 2.5 mg/g
Manufacturer: Laboratorios Thea S.A.
Prescription not required
Dosage form: INJECTABLE, 5 x 10¹² vg/ml
Active substance: voretigene neparvovec
Prescription required
Dosage form: EYEDROP, 2 mg/1 package
Manufacturer: Teva Pharma S.L.U.
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(96)
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.

CameraBook a video appointment
€55
November 610:00
November 610:40
November 611:20
November 614:00
November 614:40
More times
5.0(4)
Doctor

Mar Tabeshadze

Endocrinology10 years of experience

Dr. Mar Tabeshadze is a licensed endocrinologist and general practitioner in Spain. She provides online consultations for adults, offering medical support for a wide range of endocrine conditions and related health concerns.

  • Diagnostic consultations for suspected endocrine disorders
  • Management of thyroid conditions, including in pregnant women
  • Early detection and treatment of type 1 and type 2 diabetes, with personalised therapy plans
  • Obesity treatment: identifying underlying causes of weight gain, combining medication and non-pharmacological strategies, and long-term support
  • Diagnosis and treatment of endocrine-related skin, hair, and nail issues
  • Ongoing care for patients with osteoporosis, pituitary, and adrenal gland disorders
Dr. Tabeshadze takes a patient-centred approach based on evidence-based medicine. Her goal is to help patients achieve hormonal balance, manage chronic conditions effectively, and improve overall well-being through targeted, personalised care.
CameraBook a video appointment
€55
November 611:00
November 711:00
November 1011:00
November 1111:00
November 1211:00
More times
5.0(15)
Doctor

Giorgi Eremeishvili

Urology21 years of experience

Giorgi Eremeishvili is a top-category urologist, a Candidate of Medical Sciences, and a licensed physician in Spain. He provides expert assistance in the diagnosis and treatment of a wide range of urological conditions in both men and women, employing a comprehensive approach and evidence-based principles.

Key areas of expertise:

  • Erectile dysfunction, decreased libido, premature ejaculation.
  • Male infertility: comprehensive diagnosis and modern treatment methods.
  • Prostate gland diseases: acute and chronic prostatitis, prostatic adenoma (benign prostatic hyperplasia), prostate cancer.
  • Inflammatory diseases of the genitourinary system: acute and chronic cystitis, pyelonephritis, epididymitis, orchitis, urethritis.
  • Sexually transmitted infections (STIs): chlamydia, ureaplasmosis, mycoplasmosis, gardnerellosis, candidiasis, herpetic infections, HPV, CMV, trichomoniasis, and others.
  • Urination disorders: urinary retention, frequent urination, urinary incontinence, overactive bladder, neurogenic bladder.
  • Neoplasms: cysts, tumors of the kidneys, bladder, testicles, prostate gland (including prostate cancer).
  • Surgical interventions: determining indications and selecting optimal minimally invasive methods.

Dr. Eremeishvili applies an integrated approach to each case. This includes thorough preoperative preparation, postoperative observation, and regular dynamic follow-up during the treatment process to achieve the best possible outcomes. All diagnostic and therapeutic recommendations are based on current evidence-based medicine and comply with the recommendations of the European Association of Urology, guaranteeing high-quality and effective care.

If you are seeking qualified assistance in diagnosing or treating urological conditions, book an online consultation with Dr. Giorgi Eremeishvili. Get expert support, accurate diagnosis, and a personalized treatment plan from the comfort of your home.

CameraBook a video appointment
€60
November 612:00
November 612:40
November 712:00
November 712:40
November 812:00
More times
5.0(2)
Doctor

Oleksandr Babushkin

Orthopedics and traumatology17 years of experience

Dr Oleksandr Babushkin is an orthopaedic and trauma specialist providing online consultations for adults with joint, muscle, and spine-related concerns. He helps patients accurately assess symptoms, manage chronic and acute musculoskeletal conditions, and build effective recovery strategies through evidence-based care.

Online consultations include:

  • Evaluation of musculoskeletal symptoms: acute or chronic pain, stiffness, and reduced mobility.
  • Diagnosis and treatment advice for joint pain (knees, hips, shoulders, elbows), back and neck pain.
  • Support for conditions such as osteoarthritis, bursitis, tendinitis, and nerve compression syndromes.
  • Guidance after injuries: strains, sprains, bruises, suspected fractures, and overuse injuries.
  • Recovery support following orthopaedic surgery or trauma.
  • Monitoring treatment progress and adjusting therapy based on your symptoms and test results.

You can book a consultation if you experience:

  • Joint pain, limited mobility, or cracking sounds during movement.
  • Back or neck pain, especially with prolonged sitting or physical activity.
  • Chronic discomfort that affects your daily life or sleep.
  • Need for post-surgical follow-up or rehabilitation planning.

Dr Babushkin combines his expertise in orthopaedics and trauma care with a personalised, structured approach — helping patients regain mobility, reduce pain, and improve quality of life.

CameraBook a video appointment
€50
November 619:00
November 619:55
November 719:00
November 814:00
November 814:55
More times
5.0(13)
Doctor

Anna Moret

Dermatology18 years of experience

Dr. Anna Moret is a board-certified dermatologist and dermatovenereologist. She specialises in adult and pediatric dermatology, venereology, aesthetic skin care, and general medicine. Her consultations are evidence-based and tailored to each patient’s dermatological needs.

Dr. Moret provides expert evaluation and treatment for:

  • Skin conditions such as eczema, acne, rosacea, dermatitis, and psoriasis.
  • Hair and scalp issues including hair loss, dandruff, and seborrheic dermatitis.
  • Pediatric skin problems — from newborns to adolescents.
  • Sexually transmitted infections (STIs) and dermatovenereology.
  • Aesthetic concerns: skin ageing, non-invasive cosmetic treatments.
  • Skin allergies and hypersensitivity reactions.
  • Mole checks, lesion evaluation, and skin cancer screening.
  • Skincare advice and personalised cosmeceutical routines.

Combining dermatology with general medical knowledge, Dr. Moret offers comprehensive care that addresses both skin health and underlying conditions. She also holds certification from the Canadian Board of Aesthetic Medicine, ensuring an internationally aligned approach to aesthetic dermatology.

CameraBook a video appointment
€55
November 709:00
November 709:30
November 1108:15
November 1209:00
November 1209:30
More times
0.0(0)
Doctor

Katia Benko

Pediatrics9 years of experience

Dr Katia Benko is a paediatrician with over 9 years of clinical experience and international training. She completed her medical education and residency in Argentina and is fully licensed to practise in Spain. Her work spans newborns, children and adolescents, with a focus on whole-person care that integrates physical, emotional and developmental health.

Areas of expertise:

  • online consultations for newborns, children and teens
  • evaluation and treatment of acute symptoms: fever, cough, infections, bronchiolitis, earache, etc.
  • long-term care for chronic paediatric conditions
  • preventive care at every stage of growth and development
  • child wellness visits and routine health check-ups
  • vaccination guidance according to standard and special schedules
  • assessment of neurodevelopment in infants and toddlers
  • feeding concerns: picky eating, food refusal, healthy habits, eating disorders
  • parental support in everyday health, emotional wellbeing and prevention
  • guidance for teenagers on healthy habits, self-care and risk prevention
Dr Benko sees paediatrics as a space for partnership with families – not only to treat illness, but to guide each child’s health journey with clarity, empathy and trust. Her goal is for every family to feel supported in making confident, informed decisions for their child’s wellbeing.
CameraBook a video appointment
€59
November 715:00
November 715:30
November 716:00
November 716:30
November 811:30
More times
5.0(11)
Doctor

Dmytro Horobets

Family medicine6 years of experience

Dr. Dmytro Horobets is a licensed family medicine physician in Poland, specialising in endocrinology, diabetology, obesity management, gastroenterology, pediatrics, general surgery, and pain medicine. He offers online consultations for adults and children, providing personalised medical support for a wide range of acute and chronic health concerns.

Areas of expertise:

  • Endocrinology: diabetes type 1 and type 2, prediabetes, thyroid disorders, metabolic syndrome, hormonal imbalance.
  • Obesity medicine: structured weight management plans, nutritional counselling, obesity-related health risks.
  • Gastroenterology: acid reflux (GERD), gastritis, irritable bowel syndrome (IBS), liver and biliary conditions.
  • Pediatric care: infections, respiratory symptoms, digestive issues, growth and development monitoring.
  • General surgery support: pre- and post-surgical consultations, wound care, rehabilitation.
  • Pain management: chronic and acute pain, back pain, joint pain, post-traumatic pain syndromes.
  • Cardiovascular health: hypertension, cholesterol control, risk assessment for heart disease.
  • Preventive medicine: regular check-ups, health screenings, long-term management of chronic conditions.

Dr. Horobets combines evidence-based medicine with a patient-centred approach. He carefully evaluates each patient’s medical history and symptoms, offering clear explanations and structured treatment plans adapted to individual needs.

Whether you need help managing diabetes, tackling weight-related health issues, interpreting lab results, or receiving general family medicine support, Dr. Horobets provides professional online care tailored to your specific health goals.

CameraBook a video appointment
€60
November 809:00
November 809:30
November 1509:00
November 1509:30
November 2209:00
More times
0.0(0)
Doctor

Karim BenHarbi

General medicine8 years of experience

Dr. Karim Ben Harbi is a licensed general practitioner based in Italy. He provides online consultations for adults and children, combining international clinical experience with evidence-based medicine. His care approach is focused on accurate diagnosis, preventive care, and personalised health guidance.

Dr. Ben Harbi received his medical degree from Sapienza University in Rome. His training included hands-on experience in diverse settings — tropical medicine, rural healthcare, and urban outpatient practice. He also conducted clinical research in microbiology, exploring the role of the gut microbiome in chronic gastrointestinal issues.

You can consult Dr. Ben Harbi for:

  • General health concerns, prevention, and primary care.
  • Hypertension, type 1 and type 2 diabetes, metabolic issues.
  • Cold, cough, flu, respiratory infections, sore throat, fever.
  • Chronic digestive issues: bloating, gastritis, IBS, microbiome imbalance.
  • Skin rashes, mild allergic reactions, basic dermatological complaints.
  • Medication guidance, treatment adjustments, prescription review.
  • Paediatric concerns — fever, infections, general well-being.
  • Lifestyle optimisation: stress, sleep, weight, and diet counselling.

Dr. Ben Harbi offers reliable, accessible medical support through online consultations, helping patients make informed decisions about their health with a clear, structured, and compassionate approach.

CameraBook a video appointment
€79
November 811:00
November 811:30
November 812:00
November 812:30
November 813:00
More times
0.0(1)
Doctor

Khrystyna Habrykevych

Gastroenterology6 years of experience

Dr Khrystyna Habrykevych is a gastroenterologist providing online consultations for adults with digestive and abdominal health concerns. She helps patients understand the causes of their symptoms, interpret test results, and choose appropriate next steps – whether it’s further investigation, treatment, or lifestyle adjustments.

Common reasons for consultation include:

  • abdominal pain, cramps, discomfort, painful bowel movements
  • heartburn, acid reflux, burping, bitter taste in the mouth
  • bloating, excessive gas, nausea or vomiting
  • diarrhoea, constipation, difficulty passing stool
  • unexplained changes in weight or appetite
  • concern about gut health or long-term digestive issues
  • changes in lab results, questions about test interpretation
  • digestive system cancer screening and prevention
  • general digestive check-ups and health assessments
Dr Habrykevych follows evidence-based medical standards and adapts each consultation to the patient’s individual situation. The online format allows for timely medical support without the need for an in-person visit.
CameraBook a video appointment
€60
November 906:00
November 1606:00
November 2306:00
November 3006:00
More times
0.0(1)
Doctor

Sergei Nalkin

Neurology11 years of experience

Dr. Sergei Nalkin, PhD, is a neurologist, specialising in sports medicine and rehabilitation. He provides expert care for patients with neurological, musculoskeletal, and post-traumatic conditions, focusing on functional recovery and long-term symptom relief.

Dr. Nalkin offers consultations and treatment for:

  • Neurological disorders including migraines, tension headaches, and peripheral neuropathies.
  • Rehabilitation after stroke, brain injury, and spinal cord trauma.
  • Chronic pain syndromes and musculoskeletal dysfunctions.
  • Sports-related injuries: prevention, treatment, and recovery planning.
  • Coordination and movement disorders affecting mobility and balance.
  • Custom rehabilitation programmes for neurological and orthopedic conditions.

With a personalised, evidence-based approach, Dr. Nalkin helps patients restore physical function, reduce pain, and improve quality of life through targeted therapy and long-term support.

CameraBook a video appointment
€55
November 913:00
November 913:40
November 914:20
November 915:00
November 1613:00
More times

Get updates and exclusive offers

Be the first to know about new services, marketplace updates, and subscriber-only promos.

Follow us on social media
FacebookInstagram
Logo
Oladoctor
Find a doctor
Doctors by specialty
Services
Choose language
© 2025 Oladoctor. All rights reserved.
VisaMastercardStripe