Bg pattern

TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS

Prescription review online

Prescription review online

A doctor will review your case and decide whether a prescription is medically appropriate.

Talk to a doctor about this medicine

Talk to a doctor about this medicine

Discuss your symptoms and possible next steps in a quick online consultation.

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 TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS

Translated with AI

This page provides general information and does not replace a doctor’s consultation. Always consult a doctor before taking any medication. Seek urgent medical care if symptoms are severe.

Show original

Introduction

Doctor consultation

Not sure if this medicine is right for you?

Discuss your symptoms and treatment with a doctor online.

Package Leaflet: Information for the User

Medicine questions

Started taking the medicine and have questions?

Discuss your symptoms and treatment with a doctor online.

Teromol Retard 300 mg Prolonged-Release Tablets

Anhydrous Theophylline

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

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

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

  • This medicine has been prescribed for you only, do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
  • If you get any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. See section 4.

Contents of the pack:

  1. What Teromol Retard is and what it is used for.
  2. What you need to know before you take Teromol Retard.
  3. How to take Teromol Retard.
  4. Possible side effects.
  5. Storing Teromol Retard.
  6. Contents of the pack and other information.

1. What Teromol Retard is and what it is used for

This medicine belongs to a group of medicines called bronchodilators, which means they dilate the bronchi and facilitate breathing.

It is indicated for the prevention and treatment of reversible airway obstruction (reversible bronchospasm) associated with lung diseases such as chronic bronchitis or emphysema and asthma.

Theophylline should not be the first choice of medication for treating asthma in children.

2. What you need to know before you take Teromol Retard

Do not take Teromol Retard:

  • If you are allergic to theophylline or any other medicine of the same group or to any of the other ingredients of this medicine (listed in section 6).
  • If you have acute heart rhythm disorders (acute tachyarrhythmia).
  • If you have recently had a heart attack.
  • If you are a child under 6 months of age.

Warnings and precautions

Consult your doctor or pharmacist before taking Teromol Retard if:

  • you have any heart disease,
  • you have very high blood pressure (severe hypertension),
  • you have an overactive thyroid gland (hyperthyroidism),
  • you have seizure disorders (epilepsy),
  • you have stomach ulcers and/or duodenal ulcers,
  • you have hemoglobin production deficiencies (porphyria),
  • you have liver and/or kidney problems (hepatic and/or renal insufficiency),
  • you know you do not eliminate theophylline correctly.

If you are a smoker, inform your doctor as you may need a dose change.

If you have a fever, consult your doctor as you may need a dose change.

Children and adolescents

Teromol Retard is not suitable for children under 12 years of age as this medicine cannot be administered in quantities less than 300 mg of theophylline in a single dose.

Taking Teromol Retard with other medicines

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

Theophylline may decrease or increase the effect of other medicines, and the effect of theophylline may be decreased or increased by other medicines if taken together. For this reason, it is necessary to inform your doctor if you are taking:

  • other preparations containing theophylline or other xanthines (such as caffeine and similar substances),
  • beta2 adrenergic receptor inducers (beta2-agonists, generally used to treat asthma),
  • barbiturates, especially phenobarbital, pentobarbital, and primidone (used for sedation, relaxation),
  • carbamazepine (anticonvulsant used for epilepsy),
  • phenytoin and fosphenytoin (used for epilepsy),
  • rifampicin and rifapentine (antibiotics),
  • sulfinpyrazone (used to treat gout),
  • products containing hypericum (St. John's Wort),
  • oral contraceptives,
  • macrolide antibiotics (especially erythromycin, troleandomycin, clarithromycin, josamycin, and spiramycin),
  • quinolone antibiotics (gyrase inhibitors, especially ciprofloxacin, enoxacin, and pefloxacin),
  • the antibiotic imipenem (especially central nervous system side effects such as seizures),
  • isoniazid (treatment for tuberculosis),
  • tiabendazole (treatment for fungal infections),
  • calcium channel blockers (e.g., verapamil and diltiazem) used for heart disease,
  • propranolol (treatment for high blood pressure),
  • mexiletine (treatment for heart problems),
  • propafenone (treatment for heart problems),
  • ticlopidine (prevention of blood coagulation),
  • cimetidine, ranitidine, etintidine (preventing stomach acid production),
  • allopurinol, febuxostat (treatment for gout),
  • fluvoxamine (treatment for mental illnesses),
  • interferon alfa and peginterferon alfa-2 (treatment for immunological disorders),
  • zafirlukast (treatment for asthma),
  • influenza vaccines,
  • hydroxylamide (muscle treatments),
  • zileuton (treatment for asthma),
  • diuretics (furosemide),
  • halothane (general anesthetic),
  • digitalis (treatment for heart problems),
  • benzodiazepines (used for sedation, relaxation).

Interference with diagnostic tests

If you are going to undergo any diagnostic tests (including blood tests, urine tests, skin tests using allergens), inform your doctor that you are taking this medicine as it may alter the results.

Taking Teromol Retard with food and drinks

You should avoid taking high amounts of caffeinated beverages such as tea, coffee, cocoa, cola, and large amounts of chocolate. These products can increase the side effects of this medicine.

Pregnancy and breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant, or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

Pregnancy

The use of theophylline is not recommended during pregnancy.

Breastfeeding

The use of theophylline is not recommended during breastfeeding.

Elderly

Do not use in people over 65 years old without consulting a doctor.

Driving and using machines

This medicine may affect your reaction time, so you should be careful when driving and/or using machines. This is especially important at the start of treatment, when changing the dose, or when taking it together with other medicines.

3. How to take Teromol Retard

Follow exactly the administration instructions of this medicine as indicated by your doctor or pharmacist. If in doubt, consult your doctor or pharmacist again.

Your doctor will indicate the exact dose you should take. The doses will be taken at regular 12-hour intervals. It is important that you strictly follow what your doctor recommends, especially regarding the spacing of doses.

The tablets should be taken without dissolving, without chewing or biting, swallowing them with sufficient liquid.

It is recommended to take this medicine at night, before going to bed.

Adults and adolescents over 16 years

The recommended dose is 1 tablet (300 mg of theophylline) every 12 hours. Your doctor may increase the dose depending on how you respond to treatment.

Elderly patients

Your doctor will assess the dose to be administered.

Use in children and adolescents

The score line should not be used to divide the tablet.

  • Children under 12 years

Teromol Retard is not suitable for children under 12 years of age (see section Children and adolescentsin section 2 of this leaflet).

  • Adolescents between 12 and 16 years

The recommended dose is 13 mg per kg of body weight per day. This amount will be divided into two doses.

If you take more Teromol Retard than you should

In case of overdose or accidental ingestion, consult your doctor or pharmacist immediately or call the Toxicology Information Service, phone: 91 562 04 20, indicating the medicine and the amount ingested.

If you forget to take Teromol Retard

Do not take a double dose to make up for forgotten doses. Take the next dose as your doctor has indicated, at the usual time.

If you stop taking Teromol Retard

If you stop taking this medicine, your illness may worsen. Do not stop taking the medicine unless your doctor tells 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 possible side effects known are listed below:

Very common side effects (may affect more than 1 in 10 people):

  • Blood composition changes: low potassium levels (hypokalemia), high calcium levels (hypercalcemia), high sugar levels (hyperglycemia), high creatinine levels, high uric acid levels (hyperuricemia), and changes in electrolytes.
  • Increased urine production (diuresis).
  • Skin rashes.

Common side effects (may affect up to 1 in 10 people):

  • Changes in heart rhythm (tachycardia and arrhythmia) or worsening of pre-existing arrhythmias, palpitations, low blood pressure (hypotension).
  • Gastrointestinal problems, nausea, vomiting, diarrhea.
  • Headache (cephalalgia), excitement, tremors, agitation, nervousness, insomnia, seizures, epileptic fits, dizziness.

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

  • Increased stomach acid secretion after theophylline administration. Consequently, patients with peptic ulcers are at risk.
  • Allergic reactions (hypersensitivity).

Rare side effects (may affect up to 1 in 1,000 people):

  • Esophageal ulcers.
  • Allergic reactions such as generalized eczema on the skin and contact dermatitis.

Reporting of side effects

If you experience any side effects, talk to your doctor or pharmacist. This includes any possible side effects not listed in this leaflet. You can also report side effects directly through the Spanish Medicines and Health Products Agency (AEMPS) website: www.notificaRAM.es By reporting side effects, you can help provide more information on the safety of this medicine.

5. Storing Teromol Retard

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

No special storage conditions are required.

Keep the tablets in the original packaging to protect them from light and moisture.

Do not use this medicine after the expiry date which is stated on the packaging after EXP. The expiry date is the last day of the month shown.

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 protect the environment.

6. Contents of the pack and other information

Teromol Retard composition

  • The active ingredient is anhydrous theophylline. Each tablet contains 300 mg of anhydrous theophylline.
  • The other ingredients are microcrystalline cellulose, low-viscosity hydroxypropyl methylcellulose, high-viscosity hydroxypropyl methylcellulose, and magnesium stearate.

Appearance and packaging of the product

Teromol Retard are white, prolonged-release tablets with a score line.

The pack contains 40 tablets.

Marketing authorization holder and manufacturer

Laboratorio Aldo-Unión, S.L.

Calle Baronesa de Maldá, 73

08950 Esplugues de Llobregat

Barcelona - Spain

Date of last revision of this leaflet:06/2022

Detailed and updated information on this medicine is available on the website of the Spanish Agency for Medicines and Health Products (AEMPS) http://www.aemps.es/

Online doctors for TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS

Discuss questions about TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS, including use, safety considerations and prescription review, subject to medical assessment and local regulations.

5.0 (129)
Doctor

Nuno Tavares Lopes

Family medicine 18 years exp.

Dr. Nuno Tavares Lopes is a licensed physician in Portugal with 17 years of experience in emergency medicine, family and general practice, and public health. He is the Director of Medical and Public Health Services at an international healthcare network and serves as an external consultant for the WHO and ECDC.

  • Emergency care: infections, fever, chest/abdominal pain, minor injuries, paediatric emergencies
  • Family medicine: hypertension, diabetes, cholesterol, chronic disease management
  • Travel medicine: pre-travel advice, vaccinations, fit-to-fly certificates, travel-related illnesses
  • Sexual and reproductive health: PrEP, STD prevention, counselling, treatment
  • Weight management and wellness: personalised weight loss programmes, lifestyle guidance
  • Skin and ENT issues: acne, eczema, allergies, rashes, sore throat, sinusitis
  • Pain management: acute and chronic pain, post-surgical care
  • Public health: prevention, health screenings, long-term monitoring
  • Sick leave (Baixa médica) connected to Segurança Social in Portugal
  • IMT medical certificates for driving licence exchange
Dr. Nuno Tavares Lopes provides medical support for patients using GLP-1 medications (Mounjaro, Wegovy, Ozempic, Rybelsus) as part of a weight loss strategy. He offers individualised treatment planning, regular follow-up, dose adjustment, and advice on combining medication with sustainable lifestyle changes. Consultations follow the medical standards accepted in Europe.

Dr. Lopes also provides interpretation of medical tests, follow-up care for complex patients, and multilingual support. Whether for urgent concerns or long-term care, he helps patients act with clarity and confidence.

Camera Book a video appointment
€59
5.0 (36)
Doctor

Jorge Correa Bellido

General medicine 7 years exp.

Dr. Jorge Correa Bellido is a Spanish physician who offers online consultations in Spanish and English. He graduated from the University of La Laguna and has a solid background in clinical practice and international research.

Throughout his career, he has participated in various medical and academic projects, including a research fellowship in Spain, where he contributed to evidence-based studies in the field of family medicine. This experience allowed him to broaden his global perspective on healthcare and comprehensive patient care.

Dr. Correa Bellido has worked with several healthcare providers in Spain, focusing particularly on patient-centered care and public health initiatives aimed at communities with limited access to healthcare services.

In addition, he actively participates in international medical conferences and workshops, which allows him to stay up to date with the latest medical advances and collaborate with healthcare professionals from different countries.

Dr. Correa Bellido provides comprehensive care for a wide variety of medical conditions, including:

  • respiratory infections
  • gastrointestinal disorders
  • cardiovascular problems
  • endocrine and metabolic diseases
  • musculoskeletal and dermatological conditions
  • as well as mental health conditions such as anxiety and depression.

He also treats infectious and allergic diseases, general health concerns, and provides guidance on prevention and healthy lifestyle habits.

His services include virtual consultations, diagnosis and management of acute and chronic diseases, prescription renewals, and personalized medical advice.

With a patient-centered approach and a strong commitment to continuous learning, Dr. Correa Bellido provides accessible and high-quality healthcare to patients both in Spain and around the world.

Camera Book a video appointment
€55
5.0 (48)
Doctor

Anastasiia Shalko

Family medicine 13 years exp.

Dr. Anastasiia Shalko is a general practitioner with a background in both paediatrics and general medicine. She graduated from Bogomolets National Medical University in Kyiv and completed her paediatric internship at the P.L. Shupyk National Medical Academy of Postgraduate Education. After working as a paediatrician in Kyiv, she relocated to Spain, where she has been practising general medicine since 2015, providing care for both adults and children.Her work focuses on urgent, short-term medical concerns – situations where patients need quick guidance, symptom assessment and clear next steps. She helps people understand whether their symptoms require in-person evaluation, home management or a change in treatment. Common reasons for booking an online consultation include:

  • acute respiratory symptoms (cough, sore throat, runny nose, fever)
  • viral illnesses such as colds and seasonal infections
  • gastrointestinal complaints (nausea, diarrhoea, abdominal pain, gastroenteritis)
  • sudden changes in how a child or adult feels
  • questions about existing treatment and whether adjustments are needed
  • renewal of prescriptions when clinically appropriate

Dr. Shalko works specifically with urgent and short-term problems, providing practical recommendations and helping patients determine the safest next step. She explains symptoms clearly, guides patients through decision-making and offers straightforward medical advice for everyday acute issues.She does not provide long-term management of chronic conditions, ongoing follow-up or comprehensive care plans for complex long-term illnesses. Her consultations are designed for acute symptoms, sudden concerns and situations where timely medical input is important.With clinical experience in both paediatrics and general medicine, Dr. Shalko confidently supports adults and children. Her communication style is clear, simple and reassuring, helping patients feel informed and supported throughout the consultation.

Camera Book a video appointment
€50
0.0 (0)
Doctor

Chikeluo Okeke

General medicine 4 years exp.

Dr Chikeluo Okeke is an internal medicine doctor with extensive international clinical experience. Originally from Nigeria, he has worked across multiple European healthcare systems and currently practises in Sweden. This professional path has given him a strong understanding of different medical approaches and the ability to work effectively with patients from diverse cultural and linguistic backgrounds.

Dr Okeke focuses on general internal medicine and adult primary care, combining clinical accuracy with careful attention to lifestyle, personal context, and everyday health concerns. His consultations are particularly well suited for people who seek medical advice online, live abroad, or need clear guidance without unnecessary complexity.

He provides online consultations covering symptom assessment, prevention, and long-term management of chronic conditions, helping patients understand what is happening and decide on appropriate next steps.

Common reasons for consultation:

  • General internal medicine concerns and initial health assessment.
  • Acute symptoms such as fever, cough, infections, pain, or weakness.
  • Chronic conditions and treatment adjustment.
  • Blood pressure issues, fatigue, metabolic concerns.
  • Preventive consultations and routine check-ups.
  • Interpretation of laboratory results and medical reports.
  • Medical advice for patients receiving care online.

Dr Okeke is known for his clear communication, calm approach, and cultural awareness. He listens carefully, explains medical decisions in a structured way, and supports patients in making informed choices about their health.

Online consultations with Dr Chikeluo Okeke offer reliable internal medicine care without geographic limitations, focused on medical relevance, clarity, and patient comfort.

Camera Book a video appointment
€60
0.0 (0)
Doctor

Joao Silva

General medicine 6 years exp.

Dr. João Silva is a physician with training and experience in the field of General and Family Medicine, dedicated to providing healthcare focused on the well-being and quality of life of his patients. Throughout his professional career, he has developed broad clinical competencies, striving to maintain a medical practice based on scientific evidence and continuous knowledge updates.

Between 2013 and 2019, he completed the Integrated Master's Degree in Medicine at the Abel Salazar Institute of Biomedical Sciences in Porto, where he acquired a solid academic and clinical education.

Subsequently, between January 2021 and December 2021, he completed the General Internship at the Entre Douro e Vouga Hospital Center in Santa Maria da Feira, where he had the opportunity to work in different hospital settings and deepen his competencies in several areas of medicine.

From January 2022 until March 2026, he works as a Resident Physician in General and Family Medicine at USF Salvador Machado in Oliveira de Azeméis, developing clinical activities in primary healthcare, follow-up of chronic patients, and health promotion in the community.

Complementing his medical training, Dr. João Silva also completed a Postgraduate Degree in Continuing and Palliative Care at CESPU, strengthening his preparation in the comprehensive approach to patient care, especially in situations requiring prolonged care and multidisciplinary support.

Camera Book a video appointment
€55

Frequently Asked Questions

Is a prescription required for TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS?
TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS requires a prescription in Spain. You can check with a doctor online whether this medicine may be appropriate for your situation.
What is the active substance in TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS?
The active ingredient in TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS is theophylline. This information helps identify medicines with the same composition but different brand names.
How much does TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS cost in pharmacies?
The average pharmacy price for TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS is around 5.03 EUR. Prices may vary depending on the manufacturer and dosage form.
Who manufactures TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS?
TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS is manufactured by Laboratorio Aldo Union S.L.. Pharmacy brands and packaging may differ depending on the distributor.
Which doctors can assess the use of TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS online?
Doctors such as Family doctors, Psychiatrists, Dermatologists, Cardiologists, Endocrinologists, Gastroenterologists, Pulmonologists, Nephrologists, Rheumatologists, Hematologists, Infectious disease physicians, Allergists, Geriatricians, Paediatricians, Oncologists may assess whether TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS is appropriate, depending on your situation and local regulations. You can book an online consultation to discuss your symptoms and possible next steps.
What are the alternatives to TEROMOL RETARD 300 mg PROLONGED-RELEASE TABLETS?
Other medicines with the same active substance (theophylline) include ELIXIFILIN 5.33 mg/ml ORAL SOLUTION, THEO-DUR 100 mg PROLONGED-RELEASE TABLETS, THEO-DUR 200 mg PROLONGED-RELEASE TABLETS. These may have different brand names or formulations but contain the same therapeutic ingredient. Always consult a doctor before switching or starting a new medicine.
bg-pattern-dark

Stay informed about Oladoctor

News about new services, product updates and useful information for patients.

Follow us on social media