Albuterol vs. Symbicort: How They Compare for Asthma & COPD

In the US, asthma affects more than 25 million people, including 5.8% of children and 8.4% of adults. Chronic obstructive pulmonary disease (COPD) impacts over 11 million individuals, though many cases likely go undiagnosed.

For both conditions, selecting the appropriate inhaler can greatly influence how well symptoms are managed and how daily life is affected. Among the many options available, Symbicort and albuterol are frequently prescribed. However, they serve different purposes and function through distinct mechanisms.

This article looks at how Symbicort and albuterol compare in different situations, such as during asthma attacks, for daily symptom control, and in treating COPD. It also covers how each medication works, their side effects, approved uses, and typical costs, so you can get a clearer idea of which one may be a better fit for your needs.

Effectiveness of Symbicort vs. Albuterol

The effectiveness of Symbicort versus albuterol varies depending on the condition being treated. Below is a summary of what studies have found regarding which medication works best in different scenarios.

As Maintenance and Reliever Therapy for Asthma

In 2006, researchers examined how well Symbicort worked compared to albuterol when used for quick relief during an asthma attack.

The Symbicort group received two doses of 160/4.5 mcg, and the albuterol group received eight puffs of 100 mcg. Everyone also received a steroid pill (prednisolone 60 mg) after 90 minutes to help reduce inflammation.

After 90 minutes, both groups improved their lung function by about the same amount:

• • 30% improvement with Symbicort
  • 32% improvement with albuterol

This showed that Symbicort acted quickly and was well tolerated during acute asthma symptoms. Over the next three hours, its safety profile was similar to that of albuterol.

This trial was the first to directly compare Symbicort with albuterol as a rescue option, since SABAs like albuterol have long been the standard treatment for sudden asthma symptoms across all levels of severity.

A later study in 2010 compared Symbicort to formoterol and albuterol for fast-acting relief. All three treatments improved lung function within three minutes after patients were exposed to AMP, a substance that temporarily causes airway narrowing.

What stood out was Symbicort’s longer-lasting effect. It continued to protect against airway narrowing three and seven hours after use. These results support its use as both a rescue inhaler and a preventive treatment in asthma.

New Guidelines for the Treatment of Asthma

For many years, short-acting beta2-agonists (SABA) like albuterol were the gold standard for quick symptom relief in people with all types of asthma. These medications are commonly known as rescue or reliever inhalers because they provide fast relief during asthma attacks or sudden breathing problems.

However, in 2019, the Global Initiative for Asthma (GINA) made a major change to how asthma is treated. By 2021, inhaled corticosteroid (ICS)-formoterol became the preferred reliever for all asthma patients. SABA is now considered a backup option, used only when ICS-formoterol isn’t possible or if a patient without recent asthma attacks chooses to stick with SABA as needed.

GINA changed its approach to asthma treatment for two main reasons:

• • New research showed that using ICS-formoterol as a reliever works better than SABA. The SYGMA-1 trial, along with two real-world trials (PRACTICAL and Novel START), proved that ICS-formoterol is more effective at reducing severe asthma flare-ups than the traditional method.

• • There are growing concerns about the safety of SABA. These concerns date back to the 1980s, when New Zealand experienced a rise in asthma-related deaths linked to SABA use. A recent large study in Sweden found that the more SABA a person used, the higher their risk of severe asthma attacks and death. Individuals who used 3-5 canisters per year had a 26% higher risk of severe attacks, while those using more than 11 canisters annually had a 77% higher risk–along with more than double the risk of death.

Currently, using Symbicort as a rescue or reliever inhaler is not FDA-approved. However, both GINA and the US-based National Asthma Education and Prevention Program (NAEPP) recommend its use for this purpose as part of the Single Maintenance and Reliever Therapy (SMART) approach.

SMART relies on a single inhaler that combines an ICS to address inflammation and formoterol to quickly relax the airways. Symbicort fits this combination, making it a viable option for the strategy.

As Maintenance and Reliever Therapy for COPD

An earlier study compared various inhaled medications, including Symbicort and albuterol, in individuals with moderate-to-severe chronic obstructive pulmonary disease (COPD).

The findings showed that both Symbicort and albuterol had a similarly fast onset of action (within 3 to 5 minutes). While both improved lung function for at least three hours, Symbicort sustained these benefits more effectively over time compared to albuterol alone.

Guidelines for the Treatment of COPD

According to the 2023 Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines, the first line of treatment for sudden COPD flare-ups involves using SABAs like albuterol. These can be given on their own or paired with short-acting anticholinergics (SAMAs) like ipratropium (Atrovent) to quickly open the airways and ease breathing.

In contrast, Symbicort in COPD is a maintenance treatment taken regularly to manage daily symptoms and reduce the risk of exacerbations.

Symbicort and Albuterol’s Mechanism of Action

Symbicort and albuterol are both inhaled medications used to help people with asthma and other respiratory conditions. They serve different roles, and the way they work in the body reflects that difference.

How Albuterol Works

Albuterol is a bronchodilator classified as a short-acting beta-2 agonist (SABA). It helps open up the airways in the lungs by attaching to beta-2 receptors found in the muscles around the lungs, as well as in the blood vessels that supply muscles.

When albuterol binds to these receptors, it activates them. This activation increases the levels of a chemical called cyclic AMP. As cyclic AMP rises, it triggers another protein called protein kinase A, which then lowers calcium levels inside the muscle cells. Since calcium is needed for muscles to contract, reduced calcium levels cause the muscles to relax.

As a result, the airways widen (a process called bronchodilation), making breathing easier and relieving symptoms like wheezing or chest tightness.

How Symbicort Works

Symbicort, on the other hand, combines two types of medication–a steroid and a long-acting bronchodilator.

The first ingredient, budesonide, is a corticosteroid. It’s a potent anti-inflammatory drug that binds to glucocorticoid receptors inside cells. Once attached, it helps block the activity of certain genes that cause inflammation. This reduces the production of chemicals that would otherwise tighten the airways and make breathing more difficult.

At the same time, budesonide helps activate other genes that reduce the release of inflammatory substances responsible for swelling and irritation in the lungs.

Budesonide also helps regulate the immune response in the lungs. In asthma, some immune cells become overactive and contribute to airway inflammation and narrowing. Budesonide reduces this effect in two ways:

• • It causes some of these cells to go through apoptosis, which is a natural cell death process.

• • It also prevents them from becoming activated in the first place. This helps calm the overall immune activity in the airways.

The second ingredient, formoterol, is a long-acting beta-2 agonist (LABA). It works in a similar way to albuterol by relaxing the muscles around the airways, but it takes longer to act and lasts much longer, providing extended relief.

Together, budesonide and formoterol help prevent asthma attacks and reduce flare-ups in both asthma and COPD, offering both long-term control and improved breathing over time.

Onset of Action of Albuterol Sulfate vs. Symbicort

Albuterol begins to open the airways within 5 to 15 minutes after inhalation. Its effect usually peaks between 30 minutes and 2 hours, and it lasts anywhere from 2 to 6 hours.

Formoterol in Symbicort also acts quickly. It typically starts working within 5 minutes of inhalation. Because of this, clinical guidelines have begun supporting Symbicort’s use as a reliever medication.

What sets formoterol apart is how long its effects continue. Spirometry measurements, which are used to assess lung function, often show improvement for up to 12 hours after use. So, unlike albuterol, formoterol provides both rapid and extended relief.

Its prolonged effect comes from a property known as lipophilicity. This allows the drug to dissolve into fat-like tissues in the airway muscles. Once absorbed, formoterol creates a kind of storage site (called a depot) within the smooth muscle. From there, it is released gradually, maintaining airway relaxation for hours after a single dose.

Budesonide, the other component in Symbicort, does not act right away. Noticeable effects may take up to 48 hrs, with maximum benefit taking up to six weeks. Its strength lies in preventing symptoms over time, not in treating them on the spot.

Side Effects of Albuterol Inhaler vs. Symbicort

Albuterol tends to cause more nervous system-related side effects, like tremors and nervousness, especially in children. About 1 in 5 people using albuterol experience these effects. Other side effects, like insomnia and nausea, happen in about 1 in 10 users.

Rare but serious effects of albuterol include:

• • Higher blood sugar
  • Changes in heart rhythm
  • Higher blood pressure
  • Low potassium levels (hypokalemia)

In contrast, Symbicort is more likely to cause mild respiratory or throat-related issues, such as:

• • Upper respiratory tract infection
  • Nasal congestion
  • Sore throat
  • Nasopharyngitis
  • Sinusitis

Serious side effects of Symbicort are less common but can occur. These may include:

• • Paradoxical bronchospasm (sudden tightening of the airways after inhalation)
  • Bone thinning (osteoporosis)
  • Eye problems like glaucoma or cataracts
  • Growth suppression in children
  • Increased risk of infections (due to budesonide’s immune-suppressing effects)

Because these medications are inhaled through the mouth, they can both raise the risk of developing oral thrush, particularly if the mouth isn’t rinsed out afterward.

Approved Indications of Albuterol and Symbicort

Albuterol, also known as salbutamol, is approved by the FDA to treat and prevent sudden breathing problems in people with asthma, COPD, or exercise-induced symptoms. It can be used by both adults and children, but the approved age varies depending on the form:

• • Inhalers (ProAir, Ventolin HFA, Ventolin Diskus) – Approved for children 4 years and older and adults.

• • Nebulizer solution – Approved for children as young as 2 years old and adults.

• • Tablets or syrup – Usually for adults and children 6 years and older, but less commonly used.

Albuterol provides quick relief, making it suitable for managing acute symptoms. It is often recommended for individuals who experience frequent or unpredictable episodes of breathlessness.

On the other hand, Symbicort is a maintenance treatment for asthma and COPD (including chronic bronchitis and emphysema). It is approved for daily use in adults and children 6 years and older with asthma, and for adults with COPD.

However, current guidelines from both GINA and NAEPP support its use as a reliever therapy for certain asthma patients.

In the US, Symbicort is only available as a metered-dose inhaler (MDI). Other formats, such as nebulizers, tablets, or dry powder inhalers (DPI), are not available domestically. However, in countries like Canada, the UK, and Australia, a dry powder version known as the Symbicort Turbohaler is widely used. This device delivers the same active ingredients but as a dry powder.

Dosage and Administration of Albuterol vs. Symbicort

Here’s a summary of albuterol and Symbicort’s dosing:

Albuterol Dosing

Symbicort Dosing (MDI)

Using Symbicort and Albuterol Together

It’s common to use Symbicort regularly and keep albuterol on hand for emergencies.

Cost of Albuterol vs. Symbicort

In the US, the cost of these medications depends on factors like insurance coverage, pharmacy rates, and available discounts. Albuterol is typically less expensive, while Symbicort, being a combination treatment, tends to carry a higher price tag. Both drugs, however, have approved generic versions that can reduce out-of-pocket expenses.

According to GoodRx, a brand-name Symbicort inhaler (80 mcg/4.5 mcg, 120 inhalations) averages around $344.22 for a 30-day supply. Its generic equivalent costs approximately $242.11 for the same dosage. Breyna, the authorized generic of Symbicort, is priced lower at about $208.63.

In contrast, branded albuterol inhalers can cost as much as $93. Generic options are significantly more affordable. Generic Proventil HFA is around $36.42, ProAir HFA about $43.82, and Ventolin HFA typically costs $48.33.

Summary

Symbicort and albuterol serve different purposes. Albuterol works quickly and is mainly used as a rescue inhaler during asthma or COPD flare-ups. Symbicort is a maintenance inhaler but can also be used for quick relief in some asthma cases, as supported by recent guidelines.

In terms of side effects, albuterol is more likely to cause tremors and nervousness, while Symbicort may lead to throat irritation or respiratory infections. Cost-wise, albuterol is generally more affordable, particularly in its generic form, while Symbicort tends to be pricier but has lower-cost generics like Breyna.

The right choice depends on your condition and treatment plan.

More Like This

Looking to better understand your treatment options for asthma and COPD? These in-depth comparisons explain how popular medications differ in usage, effectiveness, and cost:

• • Flovent vs. Albuterol – Learn how a daily maintenance inhaler compares with a fast-acting rescue inhaler.

• • Trelegy vs. Advair – See how these combination therapies stack up in managing long-term symptoms.

Explore these resources to help guide more informed conversations with your healthcare provider.

Frequently Asked Questions