Background pattern

NORBAKTIN

Ask a doctor about a prescription for NORBAKTIN

5.0(38)
Doctor

Yevgen Yakovenko

General surgery11 years of experience

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

CameraBook a video appointment
€54
November 315:00
November 315:40
November 316:20
November 317:00
November 317:40
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 NORBAKTIN

INSTRUCTIONS for medical use of the medicinal product DIMETINDENE (DIMETINDENE)

Composition

active substance: dimetindene maleate; 1 g of gel contains dimetindene maleate 1 mg; excipients: benzalkonium chloride, disodium edetate, carbomer, sodium hydroxide solution 30%, propylene glycol, purified water.

Pharmaceutical form

Gel.

Main physical and chemical properties

Homogeneous, colorless or slightly yellowish, transparent or slightly opalescent gel.

Pharmacotherapeutic group

Antihistamine drugs for topical use.

ATC code D04A A13.

Pharmacological properties

Pharmacodynamics

Dimetindene maleate is a derivative of phenindamine, an antagonist of histamine at the level of H1-receptors. It has anti-allergic and anti-itching effects. Due to the active substance of the medicinal product - dimetindene maleate - after applying the gel to the skin, itching and irritation that accompany skin allergic reactions are reduced. The preparation also has local anesthetic properties and cools the skin when applied.

When applied topically, the gel, due to its specially designed base, quickly penetrates the skin and starts acting within a few minutes. The maximum effect is achieved within 1-4 hours.

Pharmacokinetics

The systemic bioavailability of the active substance is 10%.

Clinical characteristics

Indications

Skin itching, for example, with insect bites, non-extensive sun erythema, uncomplicated small skin burns, and allergic irritation of small skin areas.

Contraindications

Increased sensitivity to any component of the medicinal product.

Interaction with other medicinal products and other types of interactions

No studies on the interaction of the medicinal product have been conducted; however, since the systemic absorption of dimetindene maleate when using the Dimetindene gel is extremely low, interaction with other medicinal products is unlikely.

Special warnings and precautions for use

The medicinal product contains benzalkonium chloride and propylene glycol, which can cause skin irritation.

The preparation cannot be used in case of known allergy to insect bites. In such cases, systemically acting preparations should be used.

It is recommended to avoid using the Dimetindene medicinal product when large areas of skin are affected, especially in children or adolescents.

During treatment with the preparation, it is recommended to avoid prolonged exposure to the sun on the affected skin areas.

Use during pregnancy or breastfeeding

Clinical data on the use of the medicinal product in pregnant women are not available. In animal studies, dimetindene maleate did not cause harmful effects (either direct or indirect) on the course of pregnancy, fetal development, and subsequent development of offspring. However, during pregnancy, it is not recommended to use Dimetindene, except in cases where the benefit of use outweighs the potential risk to the fetus. In such cases, the use of the preparation is possible only under the supervision of a doctor.

It is not recommended to apply Dimetindene to large areas of skin, especially damaged or inflamed skin. This also applies to women who are breastfeeding. In addition, women who are breastfeeding should not apply the gel to the nipples of the mammary glands.

Ability to influence the reaction rate when driving vehicles or operating other mechanisms

Dimetindene maleate, when used externally, does not affect the reaction rate while driving vehicles or working with other mechanisms.

Method of administration and dosage

Children under 2 years of age can use the medicinal product only under the supervision of a doctor. Infants and young children should not apply the gel to large areas of skin, especially damaged or inflamed.

Adults and children over 2 years of age should apply the gel to the affected skin areas 2-4 times a day. If the skin condition does not improve after 7 days of using the preparation, it is necessary to consult a doctor.

Children

Children under 2 years of age can use the medicinal product only under the supervision of a doctor. Infants and young children should not apply the gel to large areas of skin, especially damaged or inflamed.

Overdose

To date, there have been no reports of cases of overdose of the medicinal product. In case of accidental ingestion of a large amount of Dimetindene gel, it is necessary to immediately consult a doctor.

Some symptoms characteristic of overdose with H1-antihistamine drugs for systemic use may be observed: depression of the central nervous system, accompanied by drowsiness (mainly in adults), stimulation of the central nervous system and anticholinergic effect (especially in children and the elderly), including excitement, ataxia, hallucinations, tonic-clonic seizures, mydriasis, dry mouth, hyperemia of the face, urinary retention, fever, as well as possible arterial hypotension.

In case of overdose, it is necessary to take measures recommended by the medical institution according to the symptoms that occur.

Side effects

The most common side effects are minor and short-term reactions on the skin at the site of application. The medicinal product contains benzalkonium chloride and propylene glycol, which can cause skin irritation.

Possible side effects

  • From the skin and subcutaneous tissue: frequency unknown (cannot be determined based on available data) - dry skin, burning sensation of the skin, allergic reactions, including skin rash, itching, and swelling, allergic dermatitis, urticaria.

Reporting of suspected side effects

Reporting of side effects after registration of the medicinal product is of great importance. This allows monitoring the benefit/risk ratio of the use of this medicinal product. Medical and pharmaceutical professionals, as well as patients or their authorized representatives, should report all cases of suspected side effects and lack of efficacy of the medicinal product through the Automated Information System for Pharmacovigilance at: https://aisf.dec.gov.ua.

Shelf life

2 years.

Shelf life after first opening

3 months.

Storage conditions

Store at a temperature not exceeding 25 °C.

Store in a place inaccessible to children.

Packaging

30 g in a tube, 1 tube in a cardboard box.

Release category

Without a prescription.

Manufacturer

Lubnypharm PJSC.

Location of the manufacturer and address of the place of its activity

Ukraine, 37500, Poltava region, Lubny, Barvinkova street, 16.

Alternatives to NORBAKTIN in other countries

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

Alternative to NORBAKTIN in Poland

Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): Krka, d.d., Novo mesto
Prescription required
Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): Krka, d.d., Novo mesto
Prescription required
Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): Krka, d.d., Novo mesto
Prescription required
Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): Krka, d.d., Novo mesto
Prescription required
Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): KRKA d.d.
Prescription required
Dosage form: Tablets, 400 mg
Active substance: norfloxacin
Marketing authorisation holder (MAH): Krka, d.d., Novo mesto
Prescription required

Alternative to NORBAKTIN in Spain

Dosage form: TABLET, 400 mg per coated tablet
Active substance: norfloxacin
Prescription required
Dosage form: TABLET, 400 mg
Active substance: norfloxacin
Manufacturer: Dari Pharma S.L.
Prescription required
Dosage form: TABLET, 400 mg norfloxacin
Active substance: norfloxacin
Manufacturer: Laboratorio Stada S.L.
Prescription required
Dosage form: TABLET, 400 mg norfloxacin
Active substance: norfloxacin
Prescription required
Dosage form: TABLET, 400 mg norfloxacin
Active substance: norfloxacin
Prescription required
Dosage form: TABLET, 400 mg norfloxacin
Active substance: norfloxacin
Prescription required

Online doctors for NORBAKTIN

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

5.0(14)
Doctor

Jonathan Marshall Ben Ami

Family medicine8 years of experience

Dr. Jonathan Marshall Ben Ami is a licensed family medicine doctor in Spain. He provides comprehensive care for adults and children, combining general medicine with emergency care expertise to address both acute and chronic health concerns.

Dr. Ben Ami offers expert diagnosis, treatment, and follow-up for:

  • Respiratory infections (cold, flu, bronchitis, pneumonia).
  • ENT conditions such as sinusitis, ear infections, and tonsillitis.
  • Digestive issues including gastritis, acid reflux, and irritable bowel syndrome (IBS).
  • Urinary tract infections and other common infections.
  • Management of chronic diseases: high blood pressure, diabetes, thyroid disorders.
  • Acute conditions requiring urgent medical attention.
  • Headaches, migraines, and minor injuries.
  • Wound care, health check-ups, and ongoing prescriptions.

With a patient-focused and evidence-based approach, Dr. Ben Ami supports individuals at all stages of life — offering clear medical guidance, timely interventions, and continuity of care.

CameraBook a video appointment
€55
November 315:00
November 315:45
November 316:30
November 317:15
November 318:00
More times
5.0(38)
Doctor

Yevgen Yakovenko

General surgery11 years of experience

Dr. Yevgen Yakovenko is a licensed surgeon and general practitioner in Spain and Germany. He specialises in general, paediatric, and oncological surgery, internal medicine, and pain management. He offers online consultations for adults and children, combining surgical precision with therapeutic support. Dr Yakovenko works with patients across different countries and provides care in Ukrainian, Russian, English, and Spanish.

Areas of medical expertise:

  • Acute and chronic pain: headaches, muscle and joint pain, back pain, abdominal pain, postoperative pain. Identifying the cause, selecting treatment, and creating a care plan.
  • Internal medicine: heart, lungs, gastrointestinal tract, urinary system. Management of chronic conditions, symptom control, second opinions.
  • Pre- and postoperative care: risk assessment, decision-making support, follow-up after surgery, rehabilitation strategies.
  • General and paediatric surgery: hernias, appendicitis, congenital conditions, both planned and urgent surgeries.
  • Injuries and trauma: bruises, fractures, sprains, soft tissue damage, wound care, dressing, referral when in-person care is required.
  • Oncological surgery: diagnosis review, treatment planning, and long-term follow-up.
  • Obesity treatment and weight management: a medical approach to weight loss, including assessment of underlying causes, evaluation of comorbidities, development of a personalised plan (nutrition, physical activity, pharmacotherapy if needed), and ongoing progress monitoring.
  • Imaging interpretation: analysis of ultrasound, CT, MRI, and X-ray results, surgical planning based on imaging data.
  • Second opinions and medical navigation: clarifying diagnoses, reviewing current treatment plans, helping patients choose the best course of action.

Experience and qualifications:

  • 12+ years of clinical experience in university hospitals in Germany and Spain.
  • International education: Ukraine – Germany – Spain.
  • Member of the German Society of Surgeons (BDC).
  • Certified in radiological diagnostics and robotic surgery.
  • Active participant in international medical conferences and research.

Dr Yakovenko explains complex topics in a clear, accessible way. He works collaboratively with patients to analyse health issues and make evidence-based decisions. His approach is grounded in clinical excellence, scientific accuracy, and respect for each individual.

If you are unsure about a diagnosis, preparing for surgery, or want to discuss your test results – Dr Yakovenko will help you evaluate your options and move forward with confidence.

CameraBook a video appointment
€54
November 315:00
November 315:40
November 316:20
November 317:00
November 317:40
More times
0.0(0)
Doctor

Antonio Cayatte

General medicine43 years of experience

Dr Antonio Cayatte is a physician in General and Acute Medicine with over 30 years of experience across clinical care, medical research, and education. He offers online consultations for adults with a wide range of symptoms, both acute and chronic.

His clinical background includes:

  • assessment of sudden or unclear symptoms
  • ongoing care for chronic conditions
  • follow-up after hospital discharge
  • interpretation of test results
  • medical support while abroad
Dr Cayatte earned his degree from the University of Lisbon and taught internal medicine at Boston University School of Medicine. He holds active medical registrations in both Portugal and the UK and is a Fellow of the American Heart Association.

Consultations are available in English and Portuguese. Patients value his clarity, professionalism, and balanced approach to evidence-based care.

CameraBook a video appointment
€60
November 315:00
November 315:30
November 316:00
November 316:30
November 317:00
More times
5.0(131)
Doctor

Andrei Popov

General medicine6 years of experience

Dr. Andrei Popov is a licensed pain management specialist and general practitioner based in Spain. He provides expert online care for adults dealing with both chronic and acute pain, as well as a wide range of everyday health concerns.

He specialises in diagnosing and treating pain conditions that affect quality of life, including:

  • Chronic pain lasting more than 3 months.
  • Migraines and recurring headaches.
  • Neck, back, lower back, and joint pain.
  • Post-traumatic pain following injury or surgery.
  • Nerve-related pain, fibromyalgia, and neuralgia.
In addition to pain management, Dr. Popov helps patients with:
  • Respiratory infections (colds, bronchitis, pneumonia).
  • High blood pressure and metabolic conditions such as diabetes.
  • Preventive care and routine health check-ups.

Online consultations last up to 30 minutes and include a detailed symptom review, personalised treatment planning, and medical follow-up when needed.

Dr. Popov’s approach is rooted in evidence-based medicine, combined with individualised care tailored to each patient’s history, lifestyle, and clinical needs.

CameraBook a video appointment
€59
November 316:00
November 316:30
November 317:00
November 317:30
November 318:00
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 320:20
November 320:50
November 321:20
November 321:50
November 811:00
More times
5.0(12)
Doctor

Anna Biriukova

General medicine5 years of experience

Dr Anna Biriukova is an internal medicine doctor with clinical experience in cardiology, endocrinology, and gastroenterology. She provides online consultations for adults, offering expert medical support for heart health, hormonal balance, digestive issues, and general internal medicine.

Cardiology – Diagnosis and treatment of:

  • High blood pressure, blood pressure fluctuations, and cardiovascular risk prevention.
  • Chest pain, shortness of breath, arrhythmias (tachycardia, bradycardia, palpitations).
  • Leg swelling, chronic fatigue, reduced exercise tolerance.
  • EKG interpretation, lipid profile evaluation, cardiovascular risk assessment (heart attack, stroke).
  • Post-COVID-19 cardiac monitoring and care.
Endocrinology – Diabetes, thyroid, metabolism:
  • Diagnosis and management of type 1 and type 2 diabetes, and prediabetes.
  • Individual treatment plans including oral medications and insulin therapy.
  • GLP-1 therapy– modern pharmacological treatment for weight management and diabetes control, including drug selection, monitoring, and safety follow-up.
  • Thyroid disorders – hypothyroidism, hyperthyroidism, autoimmune thyroid diseases (Hashimoto’s, Graves’ disease).
  • Metabolic syndrome – obesity, lipid disorders, insulin resistance.
Gastroenterology – Digestive health:
  • Abdominal pain, nausea, heartburn, gastroesophageal reflux (GERD).
  • Stomach and intestinal conditions: gastritis, irritable bowel syndrome (IBS), indigestion.
  • Management of chronic digestive disorders and interpretation of tests (endoscopy, ultrasound, labs).
General internal medicine and preventive care:
  • Respiratory infections – cough, colds, bronchitis.
  • Lab test analysis, therapy adjustments, medication management.
  • Adult vaccinations – planning, contraindications assessment.
  • Cancer prevention – screening strategies and risk assessment.
  • Holistic approach – symptom relief, complication prevention, and quality of life improvement.
Dr Biriukova combines internal medicine with specialist insight, offering clear explanations, personalised treatment plans, and comprehensive care tailored to each patient.
CameraBook a video appointment
€60
November 406:00
November 406:50
November 407:40
November 408:30
November 514:50
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 411:00
November 511:00
November 611:00
November 711:00
November 1011:00
More times
0.0(1)
Doctor

Maryna Kuznetsova

Cardiology16 years of experience

Dr Marina Kuznetsova is an internal medicine doctor and cardiologist with a PhD in medicine. She provides online consultations for adults with chronic and acute conditions, with a strong focus on cardiovascular health. Her approach is based on current clinical guidelines and evidence-based treatment strategies.

Areas of expertise:

  • dyslipidaemia and lipid metabolism disorders
  • prevention and management of atherosclerosis
  • blood pressure monitoring and antihypertensive therapy
  • arrhythmias: diagnosis, follow-up, and treatment adjustment
  • cardiovascular care and recovery support after Covid-19
Dr Kuznetsova helps patients manage cardiovascular risk factors, optimise long-term treatment, and gain clarity in complex health situations – all through accessible and structured online care.
CameraBook a video appointment
€50
November 414:00
November 414:50
November 415:40
November 416:30
November 417:20
More times
5.0(1)
Doctor

Lina Travkina

Family medicine12 years of experience

Dr. Lina Travkina is a licensed family and preventive medicine doctor based in Italy. She provides online consultations for adults and children, supporting patients across all stages of care – from acute symptom management to long-term health monitoring and prevention.

Areas of medical care include:

  • Respiratory conditions: colds, flu, acute and chronic bronchitis, mild to moderate pneumonia, bronchial asthma.
  • ENT and eye conditions: sinusitis, tonsillitis, pharyngitis, otitis, infectious and allergic conjunctivitis.
  • Digestive issues: gastritis, acid reflux (GERD), IBS, dyspepsia, bloating, constipation, diarrhoea, functional bowel symptoms, intestinal infections.
  • Urological and infectious diseases: acute and recurrent cystitis, bladder and kidney infections, prevention of recurrent UTIs, asymptomatic bacteriuria.
  • Chronic conditions: hypertension, diabetes, hypercholesterolemia, metabolic syndrome, thyroid disorders, excess weight.
  • Neurological and general symptoms: headache, migraine, dizziness, fatigue, sleep disturbances, reduced concentration, anxiety, asthenia.
  • Chronic pain support: back, neck, joint, and muscle pain, tension syndromes, pain associated with osteochondrosis and chronic conditions.

Additional care areas:

  • Preventive consultations and check-up planning.
  • Medical advice and follow-up consultations.
  • Test interpretation and diagnostic guidance.
  • Structured support for undiagnosed complaints.
  • Second opinion on diagnoses and treatment plans.
  • Nutritional and lifestyle support for vitamin deficiencies, anaemia, metabolic issues.
  • Post-operative recovery support and pain management.
  • Preconception counselling and postpartum support.
  • Immunity support and strategies to reduce frequency of infections.

Dr. Travkina combines evidence-based medicine with an attentive, personalised approach. Her consultations focus not only on treatment, but also on prevention, recovery, and long-term wellbeing.

If during the consultation it becomes clear that your case requires in-person assessment or specialised care outside of her scope, the session will be terminated and the payment fully refunded.

CameraBook a video appointment
€70
November 515:00
November 515:45
November 516:30
November 614:00
November 614:45
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

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