Teolong

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Teolong

What is Teolong? Defining the Drug's Identity and Action

Property Description
Active Ingredient Choline Theophyllinate (Oxtriphylline)
Form Prolonged-release tablet or oral capsule
Pharmacological Class Bronchodilator, Xanthine derivative
General Purpose To facilitate easier breathing by widening airways
Origin Synthetic

Teolong: Definition, Composition, and Origin

Teolong is a pharmaceutical preparation whose active ingredient is Choline Theophyllinate, which is also known by the synonym Oxtriphylline. This compound is chemically classified as a Xanthine derivative and is a synthetic substance. Specifically, it is a choline salt of Theophylline, which is the core therapeutic moiety. The inclusion of the choline salt in the formulation is a strategic design choice, recognized in pharmacology for enhancing the solubility and stability of the active substance for consistent absorption following oral administration.


What Type of Medicine is Teolong and What is Its Physical Form?

Teolong is classified as a Bronchodilator, belonging to the group of Respiratory Smooth Muscle Relaxants that act systemically. This means the medication's primary function is to promote the widening of the bronchial tubes in the lungs. The medicine is commonly supplied as a specialized prolonged-release tablet or oral capsule, which is an intentional design to ensure the active ingredient is dispersed gradually over many hours. This extended-release mechanism is clinically recognized as crucial for maintaining stable therapeutic concentrations and sustaining the bronchodilating effect.


General Purpose of Choline Theophyllinate Action

The general purpose of Choline Theophyllinate is to promote bronchodilation, thereby facilitating easier, less restricted airflow. This action is rooted in the drug's ability to relax the smooth muscles surrounding the airways. The result of this smooth muscle relaxation is a reduction in airway resistance, which provides general relief from tightness and helps prevent or mitigate bronchospasm and other symptoms associated with restricted air passages. A typical use scenario involves helping patients maintain clear airways, especially during periods when breathing might be compromised.

What side effects are possible with Teolong?

Possible Side Effects and Safety Information for Teolong

The safety profile of Teolong (Choline Theophyllinate) is defined primarily by its concentration-dependent toxicity, meaning the frequency and severity of adverse reactions are directly linked to the drug's serum level. Risk is officially documented to increase sharply when theophylline serum concentrations exceed 20 mcg/ mL.

Adverse reactions are classified in regulatory documents across several System-Organ Classes:

  • Gastrointestinal Disorders: May include nausea, vomiting, abdominal pain, diarrhea, and anorexia. The drug is noted as a local gastrointestinal irritant.
  • Nervous System Disorders: Documented effects include headache, insomnia, tremor, restlessness, dizziness, and lightheadedness.
  • Cardiac Disorders: Potential reactions include palpitations, tachycardia (fast heart rate), and irregular heartbeats (ventricular arrhythmias).

Serious Reactions and Specific Safety Considerations

Official labeling documents that the most serious adverse reactions, such as convulsions (seizures) and ventricular arrhythmias, may occur suddenly without prior, less severe signs of toxicity. Less serious effects like nausea and restlessness may occur more frequently upon the initiation of therapy.

Specific populations are officially documented to have an increased risk of toxicity due to altered drug clearance. This includes elderly patients (over 60 years of age) and individuals with hepatic impairment (e.g., cirrhosis) or congestive heart failure. These risk profiles underscore that the safety management of the medicine is heavily reliant on understanding its concentration-based risks and specific patient factors as outlined in regulatory safety summaries.

Overdose and Emergency Response

Teolong Overdose and when to seek help

The overdose profile for Teolong (Choline Theophyllinate) is defined by its potential for sudden, severe, and life-threatening events that may occur without preceding mild symptoms. Immediate emergency medical attention is mandatory upon any suspicion of overdose.

When to Seek Immediate Medical Help

  • Contact emergency services (e.g., 911 or Poison Help) or a healthcare professional immediately if overdose is suspected, even if the patient has no symptoms.
  • Urgent care is required if the person experiences a seizure, severe irregular heartbeat, trouble breathing, or cannot be awakened.
Documented Manifestations Severe & Life-Threatening Outcomes
Gastrointestinal: Nausea, persistent vomiting, abdominal pain, diarrhea. Neurological: Seizures (convulsions), status epilepticus, tremor.
CNS: Restlessness, headache, irritability, insomnia, confusion. Cardiovascular: Ventricular arrhythmias, cardiac arrest, severe hypotension.
Cardiovascular: Rapid or irregular heartbeat (tachycardia). Metabolic: Hypokalemia (low potassium) and hyperglycemia.

Overdose management is symptomatic and supportive; there is no specific antidote. Official protocols require the administration of activated charcoal and continuous monitoring of serum theophylline levels to predict potentially fatal toxicity. Population-specific risks show that elderly patients and those with conditions like hepatic cirrhosis may experience severe toxicity at lower drug concentrations.

Therapeutic Uses of Teolong

What Teolong Treats: Main Uses and Benefits

Teolong (Choline Theophyllinate) is commonly used for symptomatic support in conditions and symptom clusters driven by airway restriction. The medication is relevant for conditions presenting with systemic or localized discomfort associated with airway obstruction.

The medication is commonly used for the symptomatic management of major obstructive diseases, including Asthma, Chronic Obstructive Pulmonary Disease (COPD), chronic bronchitis, and emphysema. It is applied across therapeutic domains where additional symptomatic support is needed to address the difficulties inherent in persistent airway obstruction.

“Teolong generally provides support that helps ease the overall symptom burden and assists with maintaining functional stability during symptomatic periods.”

It is used for managing symptom clusters that may become intense or disruptive, such as wheezing, chest tightness, and shortness of breath (dyspnea). The therapeutic use offers symptomatic relief that supports patients during episodes of heightened discomfort and contributes to improved day-to-day comfort. The medication is also considered relevant in conditions involving recurrent or episodic manifestations, often applied to manage nocturnal wheeze and exercise-induced bronchospasm.

Quick Fact: Conditions with Symptomatic Discomfort: Persistent Shortness of Breath (Dyspnea) and Wheezing

Eligibility and Restrictions for Use

Who Can and Cannot Use Teolong?

Teolong is the brand name for Theophylline extended-release, a medication used to treat or prevent bronchospasm in chronic lung diseases. The eligibility for its use is strictly governed by the potential for toxicity and the need for close monitoring.


Eligibility Restrictions

Theophylline is classified as a Narrow Therapeutic Index (NTI) drug, meaning the difference between an effective dose and a toxic dose is very small. Therefore, its use is generally restricted to patients who can undergo Therapeutic Drug Monitoring (TDM) to measure drug levels in the blood.

Population Status Eligibility Rule
Contraindicated Patients with known hypersensitivity or allergic reaction to theophylline or any of its components.
Special Caution/Adjustment Required Elderly patients and those with concurrent conditions that can reduce drug clearance, such as liver impairment, hypoxemia, cardiac disorders, or high fever. These groups have a higher risk of toxicity and require careful dose reduction and monitoring.
Pediatric Use Approved for use in pediatric patients for the treatment of bronchospasm, but requires careful dosing and TDM.
Pregnancy/Lactation Use during pregnancy or while breastfeeding requires a careful assessment of benefits versus potential risks to the fetus or infant.

All patients must adhere to prescribed dosing and monitoring to prevent serious side effects.

What should I know about interactions with other medicines?

Teolong Interactions with Other Medicines and Products

The official interaction profile for Teolong (Choline Theophyllinate) details specific drug-drug, drug-substance, and drug-food interactions that modify the active substance's clearance and concentration.

Official Restrictions and Contraindications

Classification Regulatory Statement
Prohibited Co-administration Strictly contraindicated with other Xanthine-containing preparations to prevent accumulation and toxicity.
Mandatory Timing Rule Enteral (tube) feedings require interruption one hour before and one hour after the dose to ensure proper absorption.

Pharmacokinetic and Pharmacodynamic Interactions

Pharmacokinetic interactions center on substances that alter plasma concentration. CYP1A2 inhibitors, such as Ciprofloxacin, are documented to significantly decrease clearance, leading to increased exposure. Conversely, CYP1A2 inducers, such as Rifampin, are documented to increase clearance, resulting in decreased plasma concentrations. Other substances, including a single large dose of Alcohol and Oral Contraceptives, are also documented to reduce clearance.

In terms of combined effects, co-administration with Beta-agonists is documented to result in pharmacodynamic synergism, increasing the risk of shared effects. The drug is also formally documented to antagonize the sedative effects of Benzodiazepines. Population-specific notes indicate that clearance is reduced in elderly patients and those with impaired liver function, increasing interaction risk.

Mechanism of Action

Teolong, an extended-release formulation of theophylline, modulates cellular function primarily through dual mechanistic pathways. It acts as a nonselective competitive inhibitor of phosphodiesterase (PDE) enzymes, specifically targeting isoforms such as PDE3 and PDE4 within various tissues, including pulmonary smooth muscle cells. This inhibitory interaction restricts the hydrolysis of cyclic adenosine monophosphate (cAMP), leading to increased intracellular concentrations of cAMP. The elevated cAMP levels activate Protein Kinase A (PKA), which initiates a cascade resulting in the phosphorylation of various cellular targets, ultimately causing smooth muscle relaxation and decreased cellular responsiveness.

Simultaneously, theophylline functions as a nonselective antagonist at adenosine receptors (A1, A2A, A2B). By blocking these receptors, it prevents the effects of endogenous adenosine signaling. At a genomic level, theophylline also acts as an activator of histone deacetylase 2 (HDAC2), which facilitates the repression of pro-inflammatory gene transcription. The system-level physiological consequences of these interactions include modulation of cardiac contractility, increased renal blood flow, and central nervous system stimulation.

Dosage and Administration Information

Official Administration Guidelines for Teolong (Choline Theophyllinate)

Teolong is prescribed according to a standardized protocol for its oral, prolonged-release formulation. The primary route of administration is strictly oral.

Dosage and Frequency

Administration is typically based on a twice-daily schedule, designed to maintain stable levels of the active substance over a 24-hour period. Standard adult regimens commonly start at a total daily maintenance dose of 400 mg, administered as 200 mg per dose. Dosage may be subject to adjustment, allowing for the use of total daily doses up to 800 mg, with the final regimen often guided by clinical response or laboratory monitoring.

Administration Instructions

The prolonged-release nature of the tablet dictates critical instructions regarding its intake:

  • Tablet Integrity: The tablet must be swallowed whole and not be crushed, chewed, or broken. Altering the form can compromise the intended slow-release mechanism.
  • Timing: The medication is generally taken with water and often scheduled for the morning and before sleep.
  • Pediatric Use: Specific dosing guidelines apply to children, with doses such as 100 mg to 200 mg per dose, twice daily, determined based on age and symptoms.

Handling Missed Doses

If a dose is missed, instructions specify a time-based protocol: the dose may be taken as soon as possible only if six hours or more remain before the next scheduled dose. If the interval is less than six hours, the missed dose must be skipped. Patients are strictly instructed not to take two doses at once to compensate for a forgotten dose.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Teolong

The information below summarizes the official research evidence and clinical studies that have examined the active ingredient in Teolong, Choline Theophyllinate, focusing on the types of evidence that exist, the study populations, and what remains uncertain. This is an overview of research patterns and is not clinical advice.


Evidence for Use in Chronic Obstructive Pulmonary Disease (COPD)

Research explored this agent in the context of stable Chronic Obstructive Pulmonary Disease (COPD), where studies often included patients with chronic bronchitis and emphysema. This research has been documented in both Randomized Controlled Trials (RCTs) and systematic reviews. Studies examined outcomes related to lung function (e.g., FEV1) and systemic or functional imbalance (e.g., arterial blood gas tensions).

Findings describe patterns observed in the studies, where changes in some lung function parameters were measured in the observed populations. Evidence for this indication is broadly labeled as Moderate. A key research limitation is that many of the RCTs are historical and were conducted over short follow-up durations. Consequently, long-term outcomes, such as the sustainability of observed changes or the patterns of hospitalization rates, are not fully established by high-level evidence.

Studies on Acute Exacerbations of COPD (AECOPD)

The evidence available for the acute clinical context primarily comes from meta-analyses of older, small-scale RCTs. Studies monitored outcomes describing episodic or acute changes, such as short-term alterations in arterial blood gas parameters. The certainty remains low regarding the research findings for acute, highly symptomatic episodes due to the small, older nature of the research available.


Evidence for Use in Asthma

Research explored this medicine in the context of chronic asthma symptoms, which has been conducted in both children and adults, often evaluating the active component as an add-on treatment. Studies monitored lung function and patient-reported outcomes describing perceived discomfort (e.g., nocturnal wheeze). Evidence quality varies across studies, and comparative evidence against the newest standard therapies is often lacking in recent, large-scale RCTs.


Key Research Gaps and Areas of Uncertainty

One of the primary research limitation frames is the inconsistency of findings across studies, particularly when looking at major, long-term outcomes like the reduction of acute COPD exacerbations. Comparative evidence is lacking for how this agent was evaluated against many of the newer bronchodilator and anti-inflammatory therapies in current practice.

Frequently Asked Questions (FAQ)

Common questions about Teolong (FAQ)

Q: How quickly does Teolong usually start to work?

The official product information describes Teolong as a prolonged-release formulation, which is designed to disperse the active ingredient gradually over many hours. This slow release is intentional to maintain stable drug levels in the body. While the onset of action varies, peak concentrations in the bloodstream are measured in studies to be reached approximately four hours after taking a dose.

Q: What happens if I miss a dose of Teolong?

Official instructions specify a time-based protocol for a missed dose. If the interval until the next scheduled dose is less than six hours, the missed dose should be skipped entirely. Official protocol advises against taking two doses at once to compensate for a forgotten dose.

Q: What should I avoid drinking while on Teolong?

Regulatory warnings indicate that alcohol may reduce the rate at which the medicine is cleared from the body. Regulatory information notes caution about substances containing high amounts of caffeine, such as coffee or chocolate, as they may increase nervous system side effects or affect blood levels.

Q: Does Teolong interact with caffeine or alcohol?

Yes, official safety information notes interactions with both. The drug’s clearance can be slowed down by alcohol. Additionally, since the active ingredient is chemically related to caffeine, consuming large amounts of caffeine may increase the chance of experiencing side effects like a fast heart rate or insomnia.

Q: What are the general expectations for results when starting Teolong?

The medicine is generally prescribed with the purpose of promoting the widening of the bronchial tubes, which facilitates easier airflow. Official studies have measured changes in lung function parameters and systemic markers in observed populations. The primary intent, according to the mechanism, is to facilitate the reduction of airway tightness.

Q: What happens if I stop taking Teolong suddenly?

Official patient information includes a caution against the sudden cessation of the medication, particularly for maintenance treatment of chronic conditions. This caution is in place due to the risk of a rapid change in symptoms if the drug is stopped without proper guidance.

Q: Can Teolong make you feel tired?

The drug is classified as a central nervous system (CNS) stimulant. The most commonly documented nervous system effects are related to stimulation, such as restlessness, tremor, and insomnia (trouble sleeping). While fatigue or unusual weakness may be reported, tiredness is not a primary recognized side effect of this stimulant-class medicine.

Q: Are there any common side effects people report with Teolong?

Regulatory documents classify adverse reactions by system. Commonly reported effects in the nervous and digestive systems include nausea, vomiting, headache, and insomnia. The severity and frequency of all reactions are documented to be directly related to the concentration of the drug in the blood.

Q: Can Teolong affect my sleep?

Yes, official documents on the drug’s safety profile list effects on the nervous system. The most specific sleep-related adverse reaction documented is insomnia, which is trouble sleeping. This effect is commonly observed with medicines that act as nervous system stimulants.

Q: Is Teolong safe to use if I have high blood pressure?

Regulatory information indicates this medicine may affect the cardiovascular system, and conditions like high blood pressure are listed in the context of required medical history. Its use in such cases requires caution and close monitoring due to the potential for increased toxicity.

Q: Can Teolong be taken with herbal supplements?

Interactions are documented between this medicine and certain herbal supplements, such as St. John's Wort. These interactions may alter the drug's effectiveness or increase the risk of side effects. Patients are directed by labeling to inform their healthcare professional about all supplements taken, including herbal products.

Q: Is it normal to have mild headaches when first starting Teolong?

Headache is a documented adverse reaction related to the nervous system. Less severe effects like headache may occur more frequently upon the initiation of therapy. Any persistent or severe headache is noted in labeling as a potential sign of drug toxicity that should be brought to the attention of a healthcare professional.

Q: Does Teolong require special monitoring for people with kidney problems?

Regulatory information indicates that patients with impaired renal (kidney) function may require careful monitoring and potential dose reduction. This is because altered clearance of the drug's metabolites has been documented, which may increase the risk of toxicity.

Q: Are there any foods that interact with Teolong?

Official documents specify a mandatory timing rule regarding enteral (tube) feedings, requiring an interruption of one hour before and one hour after the dose. Other high-intake dietary factors, such as high protein intake or charbroiled foods, have also been noted in official product information to potentially affect the drug's absorption.

Q: Can I drive or operate machinery while taking Teolong?

Official product information notes that due to documented potential side effects like dizziness and tremor (shaking), patients should consider the risks when performing tasks that require full mental alertness. This includes driving or operating heavy or complicated machinery.

Q: Is Teolong a controlled substance?

Official drug labeling from regulatory authorities, such as the FDA, lists the DEA Schedule for this medication as None. This means the medicine is not classified as a federally controlled substance.

Q: Does Teolong need to be refrigerated?

Official storage requirements specify that the product should be kept at Controlled Room Temperature (typically 20 C to 25 C or 68 F to 77 F). It is explicitly instructed to be kept away from excess heat and moisture.

Q: Does Teolong show up on drug tests?

The active ingredient, Theophylline, is measurable in serum and plasma using regulated laboratory test systems. These tests are intended specifically for monitoring therapeutic drug levels in the body and for detecting potential overdose.

Q: Is Teolong safe for older adults (seniors)?

The use in elderly patients (typically over 60 years of age) is governed by specific regulatory guidelines that involve special caution and monitoring. This population has a documented increased risk of toxicity due to potential changes in how the body clears the drug.

Q: Can taking Teolong cause weight gain or loss?

Weight changes are not listed as one of the common or primary adverse reactions in the main safety sections. However, the occurrence of weight gain has been reported in post-marketing or low-incidence adverse events reviewed by regulatory authorities.

Q: Does Teolong affect birth control pills?

Official drug interaction profiles note that oral contraceptives are documented to potentially reduce the clearance rate of this medicine. This means that the contraceptive may lead to higher concentrations of the active substance in the blood.

Q: What kind of monitoring (tests) is required while taking Teolong?

Due to the medicine's classification as a Narrow Therapeutic Index (NTI) drug—meaning the difference between an effective and toxic dose is small—its use generally requires Therapeutic Drug Monitoring (TDM). This is a blood test used to measure and confirm drug levels are within a safe and effective range.

Q: Can Teolong be crushed or split?

Official administration guidelines prohibit altering the form of the prolonged-release tablet. It is documented that the tablet should be swallowed whole, and it should not be crushed, chewed, or broken, as this compromises the intended slow-release mechanism.

Q: What kind of studies support the use of Teolong?

The evidence base for this medicine includes different types of research, such as Randomized Controlled Trials (RCTs), systematic reviews, and meta-analyses. These studies have examined its use in the conditions it is approved to treat, such as chronic obstructive pulmonary disease (COPD) and chronic asthma.

Q: Does Teolong come with a Medication Guide or Patient Information leaflet?

In many jurisdictions, this medicine is required by the regulatory authority to be dispensed with a Patient Information Leaflet or Medication Guide. This document summarizes important usage and safety information for the patient as a standard regulatory requirement.

Q: Why is Teolong taken once a day (if it is)?

Regulatory guidelines for this prolonged-release formulation typically define a twice-daily schedule (e.g., a morning dose and a dose before sleep). The extended-release design ensures that the active ingredient is released gradually to maintain stable drug levels over a 24-hour period.

Q: What should I do if I accidentally take too much Teolong?

Official instructions describe the protocol for overdose, which includes contacting a regional Poison Control Center and seeking emergency medical help immediately. This is the standard procedure outlined in patient information for accidental over-ingestion.

Q: Does Teolong interact with common over-the-counter pain relievers?

While major drug-drug interactions are not typically documented for common pain relievers like Paracetamol (Acetaminophen), official labeling notes that all over-the-counter medicines should be discussed with a healthcare professional before concurrent use. This is standard regulatory procedure for all medications.

Q: Can Teolong cause changes in mood or anxiety levels?

Documented effects on the nervous system include restlessness and insomnia. Furthermore, the drug is known to interact with certain anti-anxiety medications (Benzodiazepines) by antagonizing their sedative effects, which can result in a change in the user's anxiety level.

Q: If Teolong doesn't seem to be working, what should be done?

If the medicine does not appear to be working as expected or if symptoms worsen, regulatory guidelines describe a protocol that involves discussing the matter with a healthcare professional. This is the mechanism for reviewing therapy, which may involve considering dosage adjustments or alternative treatments.

How should Teolong be stored and disposed of?

Teolong (Theophylline extended-release) must be stored and disposed of according to official regulatory labeling to ensure product stability and safety.

Required Storage Conditions

Storage Component Requirement
Temperature Store at Controlled Room Temperature (CRT), 20 C to 25 C (68 F to 77 F).
Protection Keep away from excess heat and moisture and protected from light. Do not store in the bathroom.
Container Keep in the original container, which must be tightly closed and use a child-resistant closure.

Safety and Disposal

The medication must be stored out of the reach and sight of children, and safety caps must be locked. Unused or expired Teolong must be disposed of in accordance with local, state, and federal regulations. Avoid releasing the product into the environment or entering drains.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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