Reliever vs. Preventer Inhalers: Understanding the Difference

March 17, 2025

Introduction

Asthma and other respiratory conditions require proper management to prevent symptoms and improve quality of life. One of the most important aspects of asthma control is understanding the difference between reliever inhalers and preventer inhalers.

Reliever inhalers provide fast relief from asthma symptoms, while preventer inhalers help reduce airway inflammation and prevent symptoms from occurring in the first place. Knowing when and how to use each type is crucial for effective asthma management.

In this blog, we’ll explore what reliever and preventer inhalers are, how they work, when to use them, and why having the right inhaler is essential. We’ll also highlight key inhalers, including Ventolin Evohaler, Ventolin Accuhaler, and Clenil Modulite, to help you make informed choices.

What Are Reliever Inhalers?

Purpose and Function

Reliever inhalers, also known as rescue inhalers, are designed to quickly open the airways during an asthma attack or when experiencing symptoms like wheezing, breathlessness, or chest tightness. These inhalers contain short-acting beta-agonists (SABAs), such as Salbutamol, which work by relaxing the airway muscles, making it easier to breathe.

When to Use a Reliever Inhaler

During an asthma attack or when symptoms occur.
Before exercise (if recommended by a doctor).
When exposed to triggers, such as pollen, smoke, or cold air.

Popular Reliever Inhalers

1. Ventolin Evohaler (Salbutamol 100mcg)

A widely used blue reliever inhaler.
Provides rapid relief within a few minutes.
Ideal for immediate symptom control.
Portable and easy to use.

2. Ventolin Accuhaler (Salbutamol 200mcg)

Dry powder inhaler (DPI) alternative to Evohaler.
Delivers medication without the need for propellants.
Suitable for those who prefer breath-activated inhalers.

How to Use a Reliever Inhaler Correctly

Shake the inhaler well before use (for pressurised inhalers).
Take one or two puffs as needed, inhaling deeply.
Wait 30-60 seconds between puffs if taking more than one.
Use a spacer if recommended for better medication delivery.

Risks of Overuse

Over-reliance on a reliever inhaler can indicate poorly controlled asthma.
Frequent use (more than three times per week) may require adjusting your preventer treatment.
Possible side effects include increased heart rate, tremors, and headaches.

💙 If you need a reliable reliever inhaler, you can order Ventolin Evohaler or Ventolin Accuhaler from our Online Chemist UK.

Do you need a reliable reliever inhaler?

You can order Ventolin Evohaler or Ventolin Accuhaler from our Online Chemist UK.

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What Are Preventer Inhalers?

Purpose and Function

Preventer inhalers contain inhaled corticosteroids (ICS), which help reduce airway inflammation over time. Unlike reliever inhalers, they do not provide immediate relief, but they prevent asthma symptoms from developing.

When to Use a Preventer Inhaler

Daily, even when feeling well, to keep asthma under control.
If experiencing frequent symptoms or night-time asthma.
To reduce reliance on a reliever inhaler.

Popular Preventer Inhaler

Clenil Modulite (Beclometasone 50mcg, 100mcg, 200mcg, 250mcg)

A brown preventer inhaler that helps control asthma in the long term.
Contains Beclometasone, a steroid that reduces airway inflammation.
Taken daily for continued protection against symptoms.
Available in different strengths depending on asthma severity.

How to Use a Preventer Inhaler Correctly

Use every day, even if you feel fine.
Shake well before use.
Rinse your mouth after use to prevent oral thrush.
Use a spacer device for better absorption (if prescribed).

How Long Does It Take to Work?

Preventer inhalers do not work instantly.
It may take 7-14 days before seeing improvements.
Maximum benefits are seen after 4-6 weeks of regular use.

What Happens If You Stop Using Your Preventer Inhaler?

Increased risk of frequent asthma symptoms.
Higher likelihood of asthma attacks.
Greater reliance on reliever inhalers.

💛 If you need a preventer inhaler, you can order Clenil Modulite online through Online Chemist UK.

Do you need a preventer inhaler?

You can order Clenil Modulite online

Buy Clenil Today!

Key Differences Between Reliever and Preventer Inhalers

Feature	Reliever Inhaler (e.g., Ventolin)	Preventer Inhaler (e.g., Clenil)
Purpose	Quick relief from symptoms	Long-term asthma control
Colour	Blue	Brown, red, or orange
When to Use	During symptoms or triggers	Daily, even when well
How It Works	Relaxes airway muscles	Reduces inflammation
Time to Work	Within minutes	Takes days to weeks

Common Myths About Inhalers

1. I Only Need My Inhaler When I Have Symptoms

❌ Wrong! Preventer inhalers must be used daily to reduce symptoms.

2. Using My Reliever Inhaler Often Means My Asthma Is Controlled

❌ Wrong! Frequent use of a reliever inhaler suggests poor asthma control.

3. Steroids in Preventer Inhalers Are Dangerous

❌ Wrong! Inhaled steroids only target the lungs and are safe when used correctly.

4. I Can Stop My Preventer Inhaler If I Feel Fine

❌ Wrong! Stopping a preventer inhaler can lead to worsening asthma symptoms.

Final Thoughts

Understanding the difference between reliever and preventer inhalers is essential for managing asthma effectively.

Use your reliever inhaler when needed for quick relief.
Take your preventer inhaler daily to prevent symptoms.
Don’t overuse relievers—this could indicate poor asthma control.

💙💛 If you need a reliever or preventer inhaler, you can order Ventolin Evohaler, Ventolin Accuhaler, or Clenil Modulite from Online Chemist UK for fast, reliable delivery.