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Ventolin is a widely-used bronchodilator that treats and prevents bronchospasm in people with reversible obstructive airway disease.

Last Modified: 07 May 2024

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What is Ventolin? 

Ventolin is a widely-used bronchodilator that treats and prevents bronchospasm in people with reversible obstructive airway disease. Its active ingredient is albuterol (salbutamol) sulfate, which is effective in opening up the airways to facilitate easier breathing. 

Ventolin's composition involves a specific molecular structure designed to selectively stimulate (agonist) beta-2 adrenergic receptors in the lungs. It is typically manufactured in a lab environment with the chemical formula C_13H_21NO_3. 


Global Name

Generic name:  Albuterol
Brand names: Proventil,  ProAir, Airomir


What is Ventolin used for? 

Ventolin is primarily used to: 

  • Treat and prevent bronchospasm in patients with asthma or other reactive airway diseases. 
  • Provide relief from exercise-induced bronchoconstriction (EIB). 

How do you use Ventolin? 


Ventolin is available as an inhaler, a nebulizer solution, tablets, and syrup. 

Dosage information:

  • Adults and Children over 4 years: 2 puffs from the inhaler every 4 to 6 hours as needed. 
  • Children under 4 years: Not recommended unless prescribed by a doctor. 


  • Children: Yes, for children over 4 years. 
  • Adults: Yes, following the recommended dosage. 
  • Elderlies: Yes, but with caution and potential dosage adjustments. 

Is there anyone who can’t take  Ventolin? 

  • Children: Not typically recommended for children under 4 years without medical advice. 
  • Adults: Those with hypersensitivity to albuterol or excipients. 
  • Elderlies: Caution due to possible heart conditions. 
  • Pregnancy: Use only if clearly needed and prescribed by a doctor. 
  • Lactation: Caution advised; discuss risks and benefits with a healthcare provider. 
  • Allergies: Avoid Ventolin if allergic to albuterol or any other component of the medication. 

Any warnings and precautions : 

Overuse of Ventolin can lead to worsening of asthma symptoms. It should be used with caution in patients with cardiovascular diseases, hyperthyroidism, or diabetes. Ventolin can be taken with or without food. 

Drug Interactions: 

Careful consideration is required when using Ventolin with beta-blockers, diuretics, and digoxin. 

Side Effects

Some common side effects include nervousness, shaking, headache, and mouth/throat dryness or irritation. Rare but serious side effects can include irregular heartbeat and chest pain. 

Pharmacist Tips

  • Storage information: Keep Ventolin at room temperature away from light and moisture. For the inhaler, keep it away from extreme heat or cold. 
  • Handling instructions: Ensure you understand how to properly use the inhaler or nebulizer and keep track of medication doses. 


Where is Ventolin available in Hong Kong?

Ventolin inhaler is an over the counter (OTC) medication that can be sold without a prescription. It is found in all chain drug stores, including Mannings and Watsons. 



How often can you use Ventolin?  

Ventolin is typically used on an as-needed basis for acute asthma symptoms, but your doctor may advise daily use in some cases. 

Is Ventolin safe during pregnancy? 

Ventolin should only be used during pregnancy if the potential benefit justifies the potential risk to the fetus. 

Can Ventolin help with coughing? 

If the cough is due to bronchospasm or asthma, Ventolin may help relieve it. 

Should Ventolin be used before exercise?   

Yes, Ventolin can be used 15 to 30 minutes before exercise to prevent EIB.

This website provides content related to drug use and medicine for informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Do not use the information on this website to diagnose or treat a health problem or disease without consulting a qualified healthcare provider. The website's owners and contributors are not liable for any repercussions, adverse effects, or consequences resulting from the use of any medication or information provided herein.

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