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Introduction About DUOLIN 3 RESPULES
Duolin 3 Respules 5X3ml is a combination medication used to manage Chronic Obstructive Pulmonary Disease (COPD), asthma, bronchitis, bronchospasm, emphysema, and runny nose. It contains Ipratropium Bromide and Levosalbutamol, which work together to relax the muscles in the airways and enhance breathing.
Your doctor will guide you on how often to use your inhaler. The effects of this medication may become noticeable after a few days, but it will reach its full effectiveness after several weeks. For the medication to work properly, it must be used regularly, even if you're not experiencing symptoms means it's still doing its job. Stopping the medication could cause your COPD to worsen. This management is not meant for sudden shortness of breath; if that happens, use your rescue inhaler instead. To get the most benefit from the medicine, it's essential to use the correct inhaler technique, as improper use may reduce its effectiveness.
The most common side effects are dryness in mouth, shortness of breath, cough, tremor, headache, palpitations, muscle cramp, throat irritation and dizziness. If you experience these symptoms, do not stop taking the medication, but make sure to consult your doctor. You can help to reduce some of these side effects by rinsing your mouth and throat with water or brushing your teeth after using your inhaler. There are also other, less common side effects that could be serious if you are concerned about them, be sure to discuss it with your doctor.
Before taking this medication, inform your doctor if you have any kidney or liver problems, so they can prescribe the appropriate dose for you. Additionally, let your doctor know if you are pregnant, planning to become pregnant, or breastfeeding women.
Uses Of DUOLIN 3 RESPULES
Benefits of DUOLIN 3 RESPULES
Duolin 3 Respules for COPD:
Duolin 3 Respules is highly effective in managing COPD by relaxing the airway muscles and improving airflow. It helps make breathing easier for COPD patients and enhances lung function over time. When used regularly as prescribed, it can help reduce flare-ups and minimize hospitalizations due to severe breathing difficulties.
Duolin 3 Respules for Asthma:
Duolin 3 Respules serves as both a rescue therapy for acute asthma attacks and a maintenance treatment for persistent asthma symptoms. It quickly relaxes the muscles in the airways, easing bronchospasms and improving oxygen flow. This medication is especially useful for individuals who don’t get enough relief from single bronchodilators like Salbutamol. However, it should not replace daily controller medications such as steroids (Budesonide, Fluticasone).
Duolin 3 Respules for Breathing Issues:
By expanding the bronchi and reducing mucus buildup, Duolin helps improve lung function and alleviates respiratory distress. Patients dealing with chronic breathlessness, chest tightness, or a persistent cough may experience significant relief, particularly when using Duolin with a nebulizer.
Duolin 3 Respules for Wheezing and Shortness of Breath:
Duolin effectively reverses airway narrowing, which causes wheezing. It is particularly beneficial for individuals with COPD, asthma, and reactive airway diseases. Regular use helps improve lung function, prevent frequent attacks, and enhance overall breathing capacity.
Duolin 3 Respules Benefits for Lung Conditions:
Duolin 3 Respules is commonly prescribed for various lung conditions, including chronic bronchitis, emphysema, asthma, and COPD. By combining two potent bronchodilators, it optimizes airflow into the lungs, reduces airway resistance, and prevents mucus buildup.
How DUOLIN 3 RESPULES Works
Duolin 3 Respules contain two active ingredients, Ipratropium bromide and Levosalbutamol, which work together to improve airflow in the lungs, making it easier for individuals with respiratory conditions like COPD and asthma to breathe.
- Levosalbutamol is a bronchodilator that helps relax the muscles in the airways, allowing them to widen and improve airflow. It works quickly to ease breathing difficulties.
- Ipratropium bromide is an anticholinergic agent that blocks certain nerve signals, preventing airway muscles from tightening and reducing mucus production.
Together, these medications provide fast and long-lasting relief from symptoms such as wheezing, shortness of breath, and chest tightness, making breathing much easier.
How to use DUOLIN 3 RESPULES
Follow your doctor's instructions exactly when using Duolin 3 Respules. It is typically administered with a nebulizer. The standard recommended dose is one respule (3ml) every 6-8 hours, or as directed by your doctor.
Steps to Use Duolin 3 Respules:
- Wash your hands thoroughly before handling the respule.
- Twist open the respule and pour the liquid into the nebulizer chamber.
- Attach the mouthpiece or mask and turn on the nebulizer.
- Inhale the mist deeply and slowly until all the medication has been used (usually 5-10 minutes).
- Clean the nebulizer after every use.
Duolin 3 Respules Dosage Instructions
For Adults:
- The usual dose is one respule (3ml) every 6-8 hours via nebulization.
- The dosage can be adjusted depending on the severity of symptoms.
For Children:
- Children over 6 years: One respule (3ml) every 6-8 hours, as prescribed by the doctor.
- Not recommended for children under 6 unless specifically advised by a doctor.
For Asthma:
- Used during acute asthma attacks for quick relief.
- One respule (3ml) via nebulizer, usually 3-4 times per day, or as prescribed.
For COPD:
- Typically used every 6-8 hours to manage symptoms of chronic obstructive pulmonary disease (COPD).
- Dosage may vary based on the severity of the condition.
How Often Should I Use Duolin 3 Respules?
- Typically prescribed 3-4 times daily (every 6-8 hours).
- Always follow your doctor's advice to avoid overuse.
Maximum Daily Dose:
- The maximum recommended dose is four respules (3ml each) in 24 hours.
- Exceeding this dosage can increase the risk of side effects.
Duration of Each Nebulization Session:
- Each session lasts about 5-10 minutes, or until the entire dose is inhaled.
How Long Should I Use Duolin 3 Respules?
- Short-term use: For acute breathing issues, follow your doctor’s prescription.
- Long-term use: For chronic conditions like COPD and asthma, it may be prescribed for long-term management.
Can Duolin 3 Respules Be Used Long-Term?
- Yes, but only under your doctor’s supervision. Long-term use may be required for managing COPD or severe asthma.
- Regular monitoring is essential to adjust the dose and minimize side effects.
When Can I Stop Using Duolin 3 Respules?
- Never stop using the medication abruptly without consulting your doctor, as it could worsen symptoms.
- Your doctor will guide you on how to safely discontinue the medication.
What if I forgot to take DUOLIN 3 RESPULES
What Should I Do if I Forget a Dose?
- If you miss a dose, take it as soon as you remember.
- If it's nearly time for your next dose, skip the missed one and resume your regular schedule.
- Never double the dose to make up for a missed one.
Can I Take Two Doses If I Miss One?
- No, taking two doses together can lead to an overdose and may cause side effects like an increased heart rate, dizziness, or tremors.
Overdose
- Symptoms of overdose may include severe dizziness, chest pain, irregular heartbeat, or difficulty breathing.
- If you suspect an overdose, seek immediate medical help.
Side Effects Of DUOLIN 3 RESPULES
Like all medicine, Duolin 3 Respules 5X3ml may cause certain side effects in some individuals, although not everybody gets them.
Common Side Effects of Duolin 3 Respules 5X3ml are:
- Dryness in mouth
- Shortness of breath
- Cough
- Tremor
- Headache
- Palpitations
- Muscle cramp
- Throat irritation
- Dizziness
When To Seek Medical Attention?
Stop using Duolin 3 Respules and contact your doctor immediately if you experience any of the following side effects:
- signs of paradoxical bronchospasm (sudden constriction of airways after using medicine) such as shortness of breath, coughing, and/or wheezing
- signs of sudden hypersensitivity reaction (immune mediated allergic reaction) such as red itchy welts, swelling of face/mouth/tongue, bronchospasm (tighten airways), and/or rash
- signs of significant cardiovascular effects measured by pulse rate, blood pressure, and/or other symptoms
How To Manage Side Effects

Dry Mouth
- Stay Hydrated – Drink plenty of water throughout the day to keep your mouth moist.
- Use Sugar-Free Gum or Lozenges – Chewing sugar-free gum or sucking on sugar-free lozenges can stimulate saliva production.
- Avoid Caffeine and Alcohol – These can worsen dry mouth by causing dehydration.
- Use a Humidifier – Adding moisture to the air, especially while sleeping, can prevent dryness.
- Maintain Good Oral Hygiene – Brush and floss regularly to prevent oral infections and bad breath.
- Try Artificial Saliva Products – Saliva substitutes, available in sprays or gels, can help keep your mouth moist.
- Limit Spicy and Salty Foods – These can irritate a dry mouth and make discomfort worse.
- Breathe Through Your Nose – Mouth breathing can worsen dryness; use nasal sprays if needed to keep nasal passages clear.

Headache
- Stay Hydrated – Drink plenty of water to reduce dehydration, which can worsen headaches.
- Rest in a Quiet, Dark Room – Avoid bright lights and loud noises to ease headache discomfort.
- Use a Cold or Warm Compress – Apply a cold pack to your forehead or a warm compress to the neck for relief.
- Practice Deep Breathing – Relaxation techniques like deep breathing or meditation can help reduce headache severity.
- Avoid Caffeine and Alcohol – These can trigger or worsen headaches.
- Limit Screen Time – Reduce exposure to screens if headaches are triggered by eye strain.
- Massage Your Temples and Neck – Gentle massages can help relieve tension headaches.
- Take Over-the-Counter Pain Relievers – If needed, mild painkillers like paracetamol (if approved by your doctor) can help.
Warning & Precautions

Pregnancy
Consult your doctorDuolin 3 Respules should only be used during pregnancy if prescribed by a doctor, as there are no well-controlled human studies. Although it may help manage breathing issues, it could present potential risks to the baby. Always seek medical advice before use.

Breastfeeding
Consult your doctorThe safety of Duolin 3 Respules for breastfeeding mothers is not fully established. Some of its components may pass into breast milk, so it should only be used if recommended by your doctor. Keep an eye on your baby for any potential side effects. Always seek medical advice before use.

Driving and Using Machines
Use with CautionIf Duolin 3 Respules affects your ability to drive or operate machinery, avoid these activities until you feel safe to do so.

Kidney
Use with CautionPatients with kidney problems, such as renal impairment, should use Duolin 3 Respules with caution. Dose adjustments and close monitoring are required. Inform your doctor if you have any pre-existing kidney conditions. Consult your doctor before use.

Liver
Use with CautionDuolin 3 Respules should be used with caution in patients with liver conditions, such as hepatic impairment. Consult your doctor before use.

Allergy
ContraindicatedDo not use Duolin 3 Respules if you are allergic to ipratropium or levosalbutamol or atropine, or any other ingredients in the medication.

Heart Disease
Use with CautionDuolin 3 Respules should be used with caution in patients with heart conditions, such as coronary insufficiency or cardiac arrhythmias. Be sure to inform your doctor if you have any heart-related problems. Consult your doctor before use.

Use In Pediatrics
Consult your doctorDuolin 3 Respules is not recommended for children under 6 years of age unless specifically prescribed. In older children, it should be used under medical supervision, as excessive doses may cause side effects like rapid heartbeat or tremors. Consult your pediatrician before giving it.

Use In Geriatrics
Consult your doctorElderly patients may be more sensitive to Duolin 3 Respules, especially those with heart conditions, high blood pressure, or pre-existing lung diseases. Close monitoring is needed to avoid complications like irregular heartbeat or dizziness. Consult your doctor before use.
Other Warnings for DUOLIN 3 RESPULES
Before using Duolin 3 Respules, inform your doctor if you:
- have high blood pressure
- have seizures
- suffer from hyperthyroidism (overactive thyroid)
- have diabetes
- have narrow angle glaucoma (increased eye pressure)
- suffer from prostatic hypertrophy (enlarged prostate gland)
- suffer from bladder-neck obstruction
Drug - Drug interaction
Inform your physician if you are taking any of the following medicine before taking Duolin 3 Respules:
1. Beta-Blockers (e.g., Propranolol)
- Interaction: Beta-blockers may reduce the effectiveness of Duolin 3 Respules.
- Effects: Reduced bronchodilator effects, potentially worsening respiratory symptoms.
- Management: If beta-blockers are necessary, choose a cardioselective agent (e.g., atenolol). Monitor lung function regularly and adjust the treatment as needed.
2. Other Anticholinergics (e.g., Tiotropium, Ipratropium)
- Interaction: Additive anticholinergic effects.
- Effects: Increased risk of dry mouth, urinary retention, constipation, and blurred vision.
- Management: Avoid combining multiple anticholinergic medications unless directed by a healthcare professional. Monitor for signs of anticholinergic toxicity.
3. Diuretics (e.g., Furosemide, Hydrochlorothiazide)
- Interaction: May increase the risk of hypokalemia when used in conjunction with Duolin 3 Respules.
- Effects: Low potassium levels can cause muscle weakness, arrhythmias, and cramping.
- Management: Monitor serum potassium levels regularly. Consider potassium supplementation if necessary.
4. Monoamine Oxidase Inhibitors (MAOIs) (e.g., Phenelzine)
- Interaction: Increased risk of cardiovascular effects such as tachycardia and hypertension.
- Effects: Elevated blood pressure, palpitations, and other cardiovascular side effects.
- Management: Avoid the combination unless under close supervision. Monitor blood pressure and heart rate closely.
5. CYP450 Enzyme Inhibitors (e.g., Ketoconazole, Erythromycin)
- Interaction: Reduced metabolism of Duolin components (ipratropium and levosalbutamol), leading to increased drug levels in the bloodstream.
- Effects: Potential for enhanced side effects, such as tremors, palpitations, or tachycardia.
- Management: Reduce the dose of Duolin 3 Respules or monitor for side effects more frequently when using these medications concurrently.
6. Theophylline
- Interaction: Increased risk of cardiovascular and nervous system side effects.
- Effects: May lead to increased heart rate, nervousness, and tremors.
- Management: Use with caution and monitor for increased side effects. Adjust doses accordingly if the combination is necessary.
7. Tricyclic Antidepressants (e.g., Amitriptyline)
- Interaction: Additive anticholinergic effects leading to increased side effects.
- Effects: Dry mouth, constipation, urinary retention, and blurred vision.
- Management: Use with caution and monitor for anticholinergic side effects. Reduce the dose of Duolin 3 Respules if necessary.
8. Other Stimulants (e.g., Epinephrine, Pseudoephedrine)
- Interaction: Additive sympathetic effects leading to increased heart rate and blood pressure.
- Effects: Tachycardia, hypertension, nervousness.
- Management: Avoid concurrent use or monitor closely for cardiovascular side effects. Adjust doses if needed.
9. Antidiabetic Medications (e.g., Insulin, Metformin)
- Interaction: Duolin 3 Respules may affect blood sugar control, particularly in patients with diabetes.
- Effects: Altered blood sugar levels, potentially leading to hyperglycemia.
- Management: Monitor blood glucose levels more frequently and adjust diabetes medications accordingly.
10. Other Respiratory Medications (e.g., Salmeterol, Fluticasone)
- Interaction: Increased risk of excessive bronchodilation or cardiovascular side effects.
- Effects: Tachycardia, palpitations, or tremors.
- Management: Use cautiously and ensure appropriate dosing intervals. Regularly monitor heart rate and blood pressure.
Synopsis
Drug | : | Ipratropium bromide, Levosalbutamol |
Pharmacological Category | : | Bronchodilator agents, Adrenergic beta-agonists |
Therapeutic Indication | : | Asthma & COPD, Bronchospasm & Emphysema, Bronchitis |
Dosage Forms | : | Rotacap, Inhalation Capsule, Inhaler, Respules, Smartule, Mistpules, Transpule |
More Information
1.PRODUCT COMPARISON
a) Duolin 3 Respules vs Levolin
Feature |
Duolin 3 Respules |
Levolin |
Composition |
Levosalbutamol + Ipratropium Bromide |
Levosalbutamol |
Dosage Form |
Respules (for nebulization) |
Tablets, Syrup, Inhaler |
Mechanism of Action |
Levosalbutamol relaxes airway muscles (bronchodilator) + Ipratropium prevents muscle tightening and reduces mucus (anticholinergic) |
Levosalbutamol relaxes airway muscles (bronchodilator) |
Indications |
COPD, severe asthma, chronic bronchitis |
Asthma, bronchospasm, reversible airway obstruction |
Usage |
Used with a nebulizer for inhalation therapy |
Taken orally (tablet/syrup) or via inhalation (inhaler) |
Onset of Action |
Rapid (within minutes) |
Rapid (within minutes) |
Duration of Action |
Longer due to dual-action formula |
Shorter compared to Duolin |
Best Suited For |
Patients with COPD, chronic respiratory conditions, or severe asthma needing nebulization |
Patients with mild to moderate asthma or occasional bronchospasms |
Side Effects |
Dry mouth, headache, dizziness, cough, throat irritation |
Tremors, nervousness, palpitations, muscle cramps |
Prescription Required? |
Yes |
Yes |
b) Duolin Respules vs Asthalin Respules
Feature |
Duolin Respules |
Asthalin Respules |
Composition |
Levosalbutamol + Ipratropium Bromide |
Salbutamol (Albuterol) |
Dosage Form |
Respules (for nebulization) |
Respules (for nebulization) |
Mechanism of Action |
Levosalbutamol relaxes airway muscles + Ipratropium prevents muscle tightening and reduces mucus |
Salbutamol relaxes airway muscles by acting on β2 receptors |
Indications |
COPD, chronic bronchitis, moderate to severe asthma |
Acute asthma, bronchospasm, exercise-induced asthma |
Usage |
Used in chronic conditions (COPD & severe asthma) where bronchodilation and mucus reduction are needed |
Used for sudden asthma attacks (bronchospasm relief) |
Onset of Action |
Rapid (within minutes) |
Rapid (within minutes) |
Duration of Action |
Longer due to dual-action formula |
Shorter compared to Duolin |
Best Suited For |
Patients with COPD, chronic asthma, and severe airway obstruction |
Patients with acute asthma attacks or temporary breathing difficulties |
Side Effects |
Dry mouth, headache, dizziness, cough, throat irritation |
Tremors, palpitations, nervousness, muscle cramps |
Prescription Required? |
Yes |
Yes |
Which is Better?
- Duolin Respules: Better suited for chronic respiratory conditions such as COPD and severe asthma, where long-term control, bronchodilation, and mucus reduction are needed.
- Asthalin Respules: Best for quick relief during asthma attacks or temporary breathing difficulties due to its rapid bronchodilator action.
Best alternative to Duolin 3 Respules:
IPRAZEST Respules 5x3ml (22% cheaper)
DUOJET Respules 5x3ml (27% cheaper)
Relevant Health Articles
FAQs About DUOLIN 3 RESPULES
Q: What is Duolin 3 Respules Used For?
A: Duolin 3 Respules are prescribed to manage chronic obstructive pulmonary disease (COPD), asthma, bronchospasm, and other respiratory issues that cause difficulty in breathing. It helps to open airways, reduce mucus buildup, and improve lung function.
Q: How Does Duolin 3 Respules Help in COPD?
A: Duolin 3 Respules are effective for managing COPD as they contain Levosalbutamol (a bronchodilator) and Ipratropium Bromide (an anticholinergic agent). This combination works by relaxing the airway muscles, preventing narrowing of the airways, and reducing mucus production, making it easier for COPD patients to breathe.
Q: Is Duolin 3 Respules Good for Asthma?
A: Yes, Duolin 3 Respules can help manage moderate to severe asthma symptoms by improving airflow and relieving airway constriction. It’s especially helpful when a single bronchodilator is not enough to control symptoms.
Q: Can Duolin 3 Respules Be Used for Wheezing?
A: Yes, Duolin 3 Respules are effective for relieving wheezing, shortness of breath, and chest tightness. They help relax airway muscles and reduce inflammation, and are commonly used for conditions like COPD, asthma, and bronchitis.
Q: Does Duolin 3 Respules Improve Breathing?
A: Yes, Duolin 3 Respules work by widening the airways, reducing airway resistance, and enhancing oxygen flow to the lungs. This provides quick and sustained relief for individuals with respiratory conditions.
Q: How Long Does Duolin 3 Respules Take to Work?
A: Duolin 3 Respules typically start working within 5-15 minutes after inhalation. Its bronchodilatory effects can last for up to 6 hours, making it effective for managing breathing difficulties.
Q: How to Use Duolin 3 Respules in a Nebulizer?
A: Open the respule by twisting it, then pour the solution into the nebulizer chamber. Attach the mouthpiece or mask securely, turn on the nebulizer, and inhale the mist deeply for 5-10 minutes. Use as directed, typically every 6-8 hours.
Q: Can Duolin 3 Respules Be Used Daily?
A: Yes, Duolin 3 Respules can be used daily if prescribed by your doctor, especially for managing chronic asthma or COPD. However, excessive use should be avoided to prevent side effects.
Q: How Many Times a Day Can I Use Duolin 3 Respules?
A: The standard dosage is one respule every 6-8 hours, up to 3-4 times a day. Your doctor may adjust the frequency depending on your condition.
Q: What Happens if I Miss a Dose of Duolin 3 Respules?
A: If you miss a dose, take it as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Avoid doubling the dose.
Q: What Are the Side Effects of Duolin 3 Respules?
A: Common side effects of Duolin 3 Respules include dry mouth, dizziness, increased heart rate (palpitations), headache, and throat irritation. If these persist or cause discomfort, consult your doctor.
Q: Is Duolin 3 Respules Safe for Long-Term Use?
A: Yes, Duolin 3 Respules are generally safe for long-term use in managing COPD and chronic asthma, but regular monitoring is recommended to prevent side effects.
Q: Does Duolin 3 Respules Cause Dizziness?
A: Some patients may experience dizziness or lightheadedness due to the bronchodilator effects. It’s advised to avoid driving or operating heavy machinery if you feel dizzy.
Q: Can Duolin 3 Respules Increase Heart Rate?
A: Yes, Duolin 3 Respules can cause an increased heart rate (tachycardia) due to the Levosalbutamol component, which stimulates beta receptors in the heart.
Q: Is Duolin 3 Respules Safe for Elderly Patients?
A: Yes, but elderly patients with heart disease, high blood pressure, or kidney issues should use Duolin 3 Respules with caution and under close medical supervision.
Q: Can Pregnant Women Use Duolin 3 Respules?
A: Duolin 3 Respules should only be used during pregnancy if prescribed by a doctor. A thorough assessment of risks versus benefits should be made before use.
Q: Is Duolin 3 Respules Better Than Levolin Respules?
A: Duolin 3 Respules contain both Levosalbutamol and Ipratropium Bromide, making them more suitable for chronic conditions like COPD. Levolin Respules, which contain only Levosalbutamol, are better for acute asthma attacks.
Q: Can I Use Duolin 3 Respules with Budecort?
A: Yes, Duolin 3 Respules and Budecort (Budesonide) can be used together under a doctor’s supervision to manage severe asthma and COPD.
Q: Is Duolin 3 Respules Available Without a Prescription?
A: No, Duolin 3 Respules require a doctor’s prescription due to their combination of bronchodilators and anticholinergics, which need medical oversight.
Q: Can Duolin 3 Respules Be Used for Cough?
A: While Duolin 3 Respules are not primarily intended for cough relief, they may help if the cough is caused by bronchospasm, COPD, or asthma.
Q: Can Duolin 3 Respules Be Used for Bronchitis?
A: Yes, Duolin 3 Respules are effective in managing chronic bronchitis by opening the airways and reducing mucus production, making breathing easier.
Q: Does Duolin 3 Respules Contain Steroids?
A: No, Duolin 3 Respules do not contain steroids. They contain Levosalbutamol (a bronchodilator) and Ipratropium Bromide (an anticholinergic).
Q: Can Duolin 3 Respules Be Mixed with Other Nebulizer Solutions?
A: Yes, Duolin 3 Respules can be mixed with other nebulized medications, such as Budecort (Budesonide), if prescribed by a doctor.
Q: What Is the Duration of Action of Duolin 3 Respules?
A: The effects of Duolin 3 Respules typically last for 4-6 hours, making them effective for managing COPD and asthma symptoms.
Q: How Long Does Duolin 3 Respules Stay in the System?
A: The active ingredients of Duolin 3 Respules remain in the system for about 6-8 hours, but their effects wear off after 4-6 hours.
Q: Can Duolin 3 Respules Be Used for Acute Asthma Attacks?
A: Yes, Duolin 3 Respules can be used for acute asthma attacks, but for immediate relief, medications like Asthalin Respules (Salbutamol) or Levolin Respules (Levosalbutamol) are typically preferred.
References
- Levosalbutamol (as sulphate) inhalation solution. Central Drugs Standard Control Organisation (CDSCO). June 2001. [Accessed on 29th May 2025].
- Ipratropium bromide inhaler. CDSCO. November 1992. [Accessed on 29th May 2025].
- Ipratropium Package Insert. Drugs.com. [Revised in January 2025]. [Accessed on 29th May 2025].
- Ipratropium Nasal Solution. Package Insert. Boehringer-Ingelheim. [Revised in May 2015]. [Accessed on 29th May 2025].
- Ipratropium bromide and Albuterol Sulfate Inhalation Aerosol. Boehringer-Ingelheim. [Revised in August 2012]. [Accessed on 29th May 2025].
- Levalbuterol Hydrochloride Inhalation Solution, for inhalation use. U. S. Food and Drug Administration. [Revised in January 2015]. [Accessed on 29th May 2025].