Available Dosages
| SKU: | 610 |
|---|---|
| Generic For: | Combivent |
| Active Ingredient: | Levosalbutamol + Ipratropium Bromide |
| Manufacturer: | Cipla, India |
Buy Duolin Inhaler 50 mcg 20 mcg (200 mdi) Online
Duolin Inhaler 20/50 mcg is a combination pressurised metered-dose inhaler (pMDI) delivering Ipratropium Bromide 20 mcg and Levosalbutamol (Levalbuterol) 50 mcg per actuation. Duolin is a dual bronchodilator that combines two complementary mechanisms of airway smooth muscle relaxation in a single inhaler device — making it one of the most clinically effective and widely used bronchodilator inhalers in the management of chronic obstructive pulmonary disease (COPD) and acute bronchospasm in asthma. With 200 metered doses per device, Duolin Inhaler provides a clinically appropriate supply for both scheduled maintenance use and rescue management of airflow obstruction.
What is Duolin Inhaler 20/50mcg?
Duolin Inhaler 20/50mcg is a fixed-dose combination pressurised metered-dose inhaler containing two bronchodilating agents: Ipratropium Bromide 20mcg (an anticholinergic bronchodilator) and Levosalbutamol 50mcg (the active R-enantiomer of Salbutamol, a short-acting beta-2 agonist) per actuation. The combination is available in a 200-dose device that delivers consistent drug quantities per activation when used with the correct inhaler technique. Duolin exploits the pharmacological synergy between anticholinergic and beta-2 agonist bronchodilation — the two predominant pathways of airway smooth muscle relaxation — to produce a greater bronchodilatory response than either agent alone, particularly in COPD, where both pathways are clinically relevant targets. It is classified as a short-acting combination bronchodilator and is used both as a regular scheduled therapy and as a rescue medication in acute exacerbations.
Manufacturer: Duolin Inhaler is manufactured by Cipla Ltd, a global respiratory medicine pioneer with decades of inhaler technology expertise and a comprehensive portfolio of respiratory products spanning short-acting, long-acting, and combination bronchodilators, corticosteroid inhalers, and nebulisation solutions.
Key Ingredients of Duolin Inhaler and Their Working Process
The therapeutic power of Duolin Inhaler lies in the complementary and synergistic mechanisms of its two active components. Ipratropium Bromide 20mcg is a quaternary ammonium anticholinergic compound that blocks muscarinic acetylcholine receptors (predominantly M3 subtype) in bronchial smooth muscle. The parasympathetic nervous system promotes bronchoconstriction through acetylcholine release — particularly relevant in COPD, where cholinergic tone is abnormally elevated and contributes substantially to airflow limitation. By competitively blocking M3 receptors, Ipratropium Bromide reverses this bronchoconstriction, reducing airway resistance and increasing forced expiratory volume. Because Ipratropium Bromide is a quaternary ammonium compound, it is very poorly absorbed from the respiratory tract. It does not cross the blood-brain barrier to a significant extent, giving it a favourable local-to-systemic activity ratio with minimal anticholinergic systemic side effects.
Levosalbutamol 50mcg is the pharmacologically active (R)-enantiomer of Salbutamol (Albuterol), a short-acting beta-2 adrenergic agonist. When conventional Salbutamol (a racemic mixture) is administered, only the R-enantiomer produces bronchodilation; the S-enantiomer contributes to adverse effects and may paradoxically increase airway hyperresponsiveness. By using only the R-enantiomer, Levosalbutamol delivers equivalent or superior bronchodilation at half the total drug load, with a more favourable cardiovascular safety profile — reduced palpitations and tachycardia compared to racemic Salbutamol. Levosalbutamol binds to beta-2 receptors on bronchial smooth muscle, activating adenylyl cyclase, increasing cyclic AMP, and triggering protein kinase A — ultimately leading to smooth muscle relaxation, bronchodilation, and mast cell stabilisation. Together, Ipratropium Bromide and Levosalbutamol act through entirely independent receptor pathways, producing additive and in some situations synergistic bronchodilation that is significantly superior to monotherapy with either agent.
Clinical Uses of Ipratropium Bromide and Levosalbutamol Combination
Duolin Inhaler 20/50mcg is primarily indicated for the management of COPD — both for scheduled four-times-daily use to maintain airway patency and for as-needed rescue use during exacerbations characterised by increased dyspnoea, wheeze, and mucus production. International COPD guidelines (GOLD) recognise the combination of short-acting anticholinergic and short-acting beta-2 agonist bronchodilators as providing superior bronchodilation to either class alone — a recommendation directly supported by the pharmacological rationale of Duolin’s dual-mechanism design.
In acute severe asthma and acute exacerbations of COPD, the combination of Ipratropium and Salbutamol/Levosalbutamol delivered by pMDI or nebuliser has been validated in emergency medicine settings to produce faster and more complete bronchodilatory response than either agent alone. Duolin is therefore used both in scheduled maintenance regimens for COPD and as a step-up bronchodilator during respiratory tract infections or worsening airflow obstruction. It may also be used in reversible airway obstruction associated with chronic asthma, where additional bronchodilator relief beyond a SABA alone is required.
Comparing Duolin Inhaler and Combivent: Brand vs Generic Differences
Combivent (Boehringer Ingelheim) is the internationally recognised combination inhaler containing Ipratropium Bromide and Salbutamol (racemic) — conceptually the same dual-bronchodilator combination as Duolin, but using racemic Salbutamol rather than the R-enantiomer-specific Levosalbutamol. Duolin’s use of Levosalbutamol rather than racemic Salbutamol represents a clinical refinement that offers equivalent bronchodilation with potentially fewer cardiovascular and tachycardia-related side effects. Cipla’s Duolin is manufactured to international standards and is available at a substantially lower price than Combivent in most markets, making it accessible for patients in both India and internationally who require sustained dual bronchodilator therapy. Both products deliver the same evidence-based combination bronchodilator strategy endorsed by COPD and asthma management guidelines.
Related strengths and products: AllDayChemist offers a comprehensive range of respiratory inhalers. For long-acting bronchodilator maintenance in COPD, longer-acting formoterol or tiotropium-based inhalers provide once or twice-daily sustained bronchodilation. For inhaled corticosteroid therapy in asthma requiring anti-inflammatory management alongside bronchodilation. Explore the complete respiratory catalogue of inhaler options for all stages of COPD and asthma management.
Key Benefits of Duolin Inhaler 20/50mcg
Duolin Inhaler provides the clinically validated advantage of dual-mechanism bronchodilation — combining anticholinergic and beta-2 agonist action to produce greater and more sustained airway opening than either drug class alone. This synergy is particularly pronounced in COPD, where both elevated cholinergic tone and reduced adrenergic responsiveness contribute to airflow limitation. The use of Levosalbutamol rather than racemic Salbutamol reduces cardiovascular side effects — palpitations, tremor, and tachycardia — making Duolin better tolerated in elderly COPD patients and those with coexisting cardiovascular disease. The pressurised metered-dose format delivers a consistent dose per actuation when correct inhaler technique is maintained, and the 200-dose device provides sufficient supply for several weeks of scheduled use. As a Cipla product, Duolin represents a quality-assured, cost-effective dual bronchodilator from the world’s leading respiratory medicine manufacturer by volume.
Usage warnings and precautionary advice for using Duolin Inhaler
Duolin Inhaler should be used with caution in patients with cardiovascular disease, including ischaemic heart disease, cardiac arrhythmias, and hypertension, due to the beta-2 agonist component’s potential to cause tachycardia and palpitations — though the use of Levosalbutamol rather than racemic Salbutamol meaningfully reduces this risk. The Ipratropium Bromide component should be used with caution in patients with narrow-angle glaucoma — avoid spraying into the eyes, as Ipratropium aerosol contact with the eyes can trigger acute angle-closure glaucoma. Patients with bladder outflow obstruction or benign prostatic hypertrophy should note that Ipratropium may worsen urinary retention. In hypokalaemia-prone patients (those on loop or thiazide diuretics, or with severe asthma), high doses of beta-2 agonists can further lower serum potassium — monitor electrolytes during acute exacerbations. Paradoxical bronchospasm, a rare but serious reaction, can occur on first use or after prolonged use — if wheezing or tightness worsens immediately after inhalation, discontinue and seek medical advice.
Side effects of Duolin Inhaler 20/50mcg
The most commonly reported side effects of Duolin Inhaler reflect the pharmacological profiles of both active components. From the Ipratropium Bromide component: dry mouth (the most common anticholinergic side effect, typically mild and manageable by rinsing the mouth or using an oral rinse), throat irritation, and occasionally urinary retention or constipation. From the Levosalbutamol component: fine tremor of the hands and fingers (common at higher doses), palpitations, and a mild increase in heart rate — effects that are reduced compared to racemic Salbutamol but not absent. Headache and dizziness are occasionally reported. Blurred vision or increased intraocular pressure can occur if the aerosol contacts the eyes — avoid directed inhalation toward the eyes. Hypokalemia may occur at high doses and in patients with predisposing conditions. Serious adverse effects — including anaphylaxis, paradoxical bronchospasm, and significant cardiovascular events — are rare but require immediate discontinuation and medical attention.
Benefits of Buying Duolin Inhaler Online
AllDayChemist provides Duolin Inhalers at competitive prices with discreet international home delivery, making it a convenient and cost-effective source for patients managing COPD or asthma who require regular inhaler supplies. Managing chronic respiratory conditions requires consistent, uninterrupted access to bronchodilator therapy — and AllDayChemist’s reliable supply chain ensures that patients never face unexpected medication shortages. For a comprehensive understanding of how different inhaler types work and when to use them, read our blog.
Proper dosage and usage guide of Duolin Inhaler 20/50mcg
Before first use, prime the inhaler by pressing the canister 3 to 4 times into the air. Shake the inhaler well before each use. Breathe out fully, place the mouthpiece between the teeth and seal the lips around it, then press the canister down firmly while breathing in slowly and deeply through the mouth. Hold your breath for 10 seconds, then breathe out slowly. If a second actuation is required, wait 30 to 60 seconds and repeat. For COPD maintenance: typically 2 actuations four times daily, as directed by the prescribing physician. For acute rescue use: 1 to 2 actuations, which may be repeated after 20 minutes if the response is incomplete, under medical supervision during acute exacerbations. Rinse the mouth after use to minimise throat irritation. Clean the mouthpiece at least once weekly with a dry cloth or tissue — do not immerse the canister in water.
What is Duolin Inhaler 20/50mcg used for?
Duolin Inhaler (Ipratropium 20mcg + Levosalbutamol 50mcg) is used to manage bronchospasm in COPD, asthma, and other obstructive airway diseases, providing rapid and sustained bronchodilation.
How do the two components in Duolin Inhaler work together?
Levosalbutamol (SABA) provides rapid bronchodilation by relaxing airway smooth muscle, while Ipratropium (anticholinergic) adds sustained bronchodilation by reducing excessive mucus secretion and bronchoconstriction.
How should Duolin Inhaler be used correctly?
Shake the inhaler, exhale fully, seal lips around the mouthpiece, press down while inhaling slowly, hold breath for 10 seconds, then breathe normally. Rinse mouth after each use.
How many puffs of Duolin Inhaler can I take?
The usual prescribed dose is 1 to 2 puffs, 3 to 4 times daily. Do not exceed the prescribed dose. Overuse can lead to paradoxical bronchospasm or cardiovascular side effects.
Is Duolin Inhaler suitable for asthma in children?
Duolin Inhaler may be prescribed for children under medical supervision. Dosage is age and weight dependent. A spacer device is recommended for children who have difficulty coordinating inhalation.
What are the side effects of Duolin Inhaler?
Common side effects include dry mouth, throat irritation, cough, headache, tremors, and palpitations. Ipratropium may also occasionally cause urinary retention or narrow-angle glaucoma symptoms.
Can I buy Duolin Inhaler from online?
Yes, Duolin Inhaler 20/50mcg is offered by many online pharmacoes at competitive prices with home delivery. Upload your valid prescription on a trusted pharmacy like AllDayChemist to complete your purchase.
Can Duolin Inhaler be used during a severe asthma attack?
Duolin can be used for acute bronchospasm, but a severe asthma attack (status asthmaticus) requires emergency medical care. Do not rely on Duolin as the sole treatment in life-threatening attacks.
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