Buy Theo-24 Cr
Theo-24 Cr
Theo-24 Cr Properties
About Theo-24 Cr
Generic Theo-24 Cr (Theophylline) is a prescription-only bronchodilator commonly used to relieve symptoms of asthma and chronic obstructive pulmonary disease (COPD). The active ingredient, theophylline, belongs to the methylxanthine class and works by relaxing airway smooth muscle, improving airflow, and reducing the frequency of wheezing attacks. In Singapore, physicians prescribe it when inhaled therapies alone do not achieve adequate control, and the 400 mg tablet formulation is a standard daily dose for many adult patients. Off-label, clinicians sometimes explore its use in apnea of prematurity or as an adjunct in diaphragmatic dysfunction, but such applications require careful supervision.
What is Generic Theo-24 Cr (Theophylline)?
Generic Theo-24 Cr (Theophylline) is marketed as a 400 mg oral tablet that delivers theophylline, a systemic bronchodilator. The Singapore Health Sciences Authority (HSA) classifies theophylline-containing products as prescription medicines, reflecting the need for dose monitoring and awareness of drug-interaction risks. Although the brand name suggests a specific formulation, the tablet contains the same active compound found in other theophylline products worldwide, offering a cost-effective option for patients who need long-acting airway support.
How Theo-24 Cr Works
Theo-24 Cr works through two complementary mechanisms. First, it inhibits phosphodiesterase-4, leading to an accumulation of cyclic adenosine monophosphate (cAMP) in bronchial smooth muscle cells; higher cAMP levels promote relaxation and bronchodilation. Second, it antagonises adenosine receptors, reducing bronchoconstrictive signaling and dampening inflammatory mediator release. After oral ingestion, the tablet is absorbed rapidly, with peak plasma concentrations reached within 1-2 hours. Theophylline’s half-life averages eight hours but can vary with age, smoking status, and concurrent use of CYP1A2-modulating drugs. Metabolism occurs primarily in the liver, and the drug is excreted renally.
Why Theo-24 Cr Is Used for Respiratory Conditions
- Bronchial smooth-muscle relaxation - By raising cAMP, the drug directly counteracts the tone that narrows airways in asthma and COPD.
- Anti-inflammatory benefit - Adenosine antagonism limits mast-cell degranulation, decreasing histamine-driven bronchospasm.
- Guideline placement - International asthma and COPD guidelines list theophylline as a third-line add-on when inhaled corticosteroids and long-acting β₂-agonists fail to control symptoms.
- Oral convenience - For patients who struggle with inhaler technique, a daily pill offers a reliable route of administration.
- Cost advantage - Generic Theo-24 Cr provides a cheaper alternative to brand-name theophylline tablets, making long-term therapy more affordable.
Off-Label and Investigational Uses of Theo-24 Cr
Evidence from small randomized trials suggests theophylline may improve apnea episodes in preterm infants and enhance diaphragmatic contractility after cardiac surgery. However, these indications have not received approval from the HSA, and data remain limited. Off-label use should only be considered under the supervision of a qualified healthcare provider.
Is Theo-24 Cr Right for You?
Theo-24 Cr suits adults with persistent asthma or the chronic bronchitis phenotype of COPD who continue to experience symptoms despite optimal inhaled therapy. It is less appropriate for patients with uncontrolled cardiac arrhythmias, severe hepatic impairment, or a history of seizures, as the drug can lower seizure threshold. Pregnant individuals should discuss risks with their obstetrician, because high plasma levels have been linked to adverse fetal outcomes. Renal dysfunction may prolong clearance, necessitating dose adjustment and therapeutic drug monitoring.
Taking Theo-24 Cr Effectively
- Timing - Take the tablet in the morning with a full glass of water to align peak concentrations with daytime activity.
- Food interactions - A high-fat meal can delay absorption slightly; consistency is more important than avoidance.
- Caffeine - Limit coffee, tea, and cola, as they share metabolic pathways and can increase plasma theophylline levels.
- Missed dose - If a dose is forgotten within 12 hours, take it as soon as remembered; otherwise skip and resume the regular schedule-do not double-dose.
- Travel - Carry the medication in its original packaging, and keep it away from extreme heat or humidity.
Understanding Side Effects and How to Manage Them
Most side-effects stem-from theophylline’s central nervous system stimulation and cardiac electrophysiology changes.
- Nausea, vomiting, and abdominal discomfort - Occur when plasma concentrations exceed the therapeutic window. Splitting the dose (e.g., 200 mg twice daily) can lessen gastrointestinal upset.
- Headache and insomnia - Result from heightened CNS activity; taking the dose earlier in the day and limiting caffeine helps.
- Palpitations or tachycardia - May signal levels above 20 µg/mL; patients should report rapid heartbeats, especially if they feel dizzy.
- Seizures - Rare but serious; immediate medical attention is required if a patient experiences a convulsion.
Mild symptoms often resolve with dose adjustment, whereas severe reactions warrant discontinuation and emergency care.
Buying Theo-24 Cr from Our Online Pharmacy
Why Choose Our Service?
Our online pharmacy delivers prescription-only medicines directly to Singaporean homes, bypassing long pharmacy queues and ensuring discreet, reliable access.
Quality & Safety
We partner with licensed international pharmacies that comply with WHO-recognized Good Manufacturing Practices, guaranteeing that every Theo-24 Cr tablet meets stringent quality standards.
Pricing & Access
Generic Theo-24 Cr offers substantial savings compared with brand-name equivalents. First-time customers enjoy a Lifetime 10 % discount on all reorders, and bulk purchases further reduce the per-tablet cost.
Discreet Delivery
Orders ship via express couriers in approximately 7 days or standard routes within 3 weeks, packed in neutral, tamper-evident containers to protect privacy.
Frequently Asked Questions
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What monitoring is required while on Theo-24 Cr? Therapeutic drug monitoring is recommended after the first week of therapy and after any dose change, aiming for plasma levels between 10-20 µg/mL.
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Can I combine Theo-24 Cr with inhaled corticosteroids? Yes, theophylline is typically added to inhaled steroids as an adjunct; the combination can improve lung function without increasing steroid dose.
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How does Theo-24 Cr compare with inhaled β₂-agonists? While β₂-agonists provide rapid bronchodilation, theophylline offers a longer-acting effect and may reduce the frequency of rescue inhaler use when added to a regimen.
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Will coffee affect my Theo-24 Cr ? Caffeine shares the same metabolic pathway (CYP1A2) and can raise theophylline concentrations, so limiting caffeinated beverages helps maintain stable drug levels.
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Is it safe to use Theo-24 Cr during a heart attack? Theophylline can increase heart rate and precipitate arrhythmias; patients with recent myocardial infarction should avoid it unless a cardiologist explicitly approves its use.
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Can I switch to a different theophylline brand without a new prescription? In Singapore, any change in product-brand or generic-requires a new prescription, as dosage equivalence must be verified by a physician.
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What should I do if I miss several doses? Contact your prescriber to reassess the treatment plan; abrupt discontinuation can lead to rebound bronchoconstriction.
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Does Theo-24 Cr affect sleep quality? Because of its stimulatory properties, some patients report insomnia; taking the dose earlier in the day and avoiding late-night caffeine mitigates this effect.
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Are there any dietary restrictions? There are no strict prohibitions, but high-protein or high-fat meals may alter absorption slightly; maintain a consistent meals schedule for predictable drug levels.
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How long can I stay on Theo-24 Cr? Theophylline can be used long-term under medical supervision, provided regular monitoring shows stable plasma concentrations and no adverse events.
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Is Theo-24 Cr covered by Singapore’s Medisave or private insurance? Coverage varies; some insurers reimburse prescription theophylline tablets, while others classify them as non-essential and require out-of-pocket payment.
Glossary
- Phosphodiesterase-4
- An enzyme that breaks down cyclic AMP; inhibition raises cAMP levels, promoting smooth-muscle relaxation.
- Adenosine receptor antagonism
- Blocking adenosine receptors reduces bronchoconstrictive signaling and dampens inflammation in the airways.
- Therapeutic drug monitoring
- Laboratory measurement of drug concentration in blood to ensure efficacy while avoiding toxicity.
Disclaimer
The information provided about Theo-24 Cr is for general knowledge only and does not replace professional medical consultation. All treatment decisions, including those regarding off-label use, should be made under the supervision of a qualified healthcare provider. We assume all readers are responsible adults capable of making informed decisions about their health. Our online pharmacy offers access to Theo-24 Cr for individuals who may have limited availability through traditional pharmacies, prescription-based insurance schemes, or who are seeking affordable generic alternatives. Always consult your doctor before starting, changing, or discontinuing any medication.
