Table of ContentsView AllTable of ContentsTypes of InhalersWhen Do You Need an Albuterol Inhaler?How Long Does an Albuterol Inhaler Last?How Long Do Other Inhalers Last?Storage and Disposal

Table of ContentsView All

View All

Table of Contents

Types of Inhalers

When Do You Need an Albuterol Inhaler?

How Long Does an Albuterol Inhaler Last?

How Long Do Other Inhalers Last?

Storage and Disposal

If you haveasthma, it’s essential to know how long yourinhaler medicationslast, like albuterol, so you have an unexpired one ready to go. Some inhalers have a counter to help you keep track of doses, but others don’t.

If your inhaler doesn’t have a counter, you must calculate how many doses are left and be aware of the expiration date. This can be particularly challenging for as-needed rescue inhalers, such as albuterol inhalers.

There are several different types of inhalers. For example, a preloaded inhaler makes it easier toknow when the inhaler’s empty. These inhalers typically contain 50 to 200 doses of medication.

Another type of inhaler, metered-dose inhalers (MDIs or HFCs), contains a chemical called propellant that continues to spray even after you’ve used all the medication. So, if you haven’t been tracking your doses, you may only be inhaling the propellant and not the medicine.

How you store your inhaler also affects how well it works, regardless of the expiration date. While a bit of water or humidity generally won’t affect how long albuterol lasts, it can significantly impact the shelf-life of a dry powder inhaler (DPI).

This article will explain the different types of inhalers and their expiration dates and offer insights into the best way to store them.

Westend61 / Getty Images

South Africa, Cape Town, young jogger using asthma inhaler on the beach

There are several different types of inhalers. They generally fall into the category of controller or rescue inhalers.

Controller inhalers contain corticosteroids, either alone or incombination with bronchodilators. Corticosteroids can help reduce inflammation over time, and bronchodilators help open the airway.

Albuterol is ashort-acting bronchodilatorand the most common rescue inhaler.

Inhalers and Counters

Most inhalers have counters to keep track of the amount of medication remaining in the device. If your inhaler does not have a counter, the number of puffs in each canister should be printed on the inhaler’s label.

Controller Inhalers

If you’re unsure when your medication will run out, ask your pharmacist or healthcare provider for help. To keep track of dates, write the start and end dates of the medication on your canister as soon as you pick it up from the pharmacy.

To avoid lapses in treatment, schedule your next refill pick-up in advance so that you have time to get a renewal from your healthcare provider if necessary, the pharmacy has time to fill the script, and you have plenty of time to pick up the medication or have it mailed to your home.

Rescue Inhalers

Albuterol is a common rescue inhaler; most albuterol inhalers have counters. If yours doesn’t have a counter, determining when a rescue inhaler will run out is often more challenging than keeping track of a controller since you typically don’t use the medication regularly. It is unrealistic to expect yourself to remember how many you have used.

Albuterol, a bronchodilator that widens the airways, is supplied in an 8.5-gram canister containing 200 puffs of medication.The manufacturer of albuterol warns against using methods or “tricks” to figure out how much medication is left in the canister, with a notice that the canister should never be immersed in water to determine how full it is (the so-called “float test”).

If there is no counter, the best way to keep track is to log how often you use your rescue inhaler. Aside from helping you determine when you’ll need a refill, this will also help assess how well your controllers work. If you are using a rescue inhaler daily, your healthcare provider might add a controller to your asthma care plan or make changes to your controller medication to reduce the frequency of your asthma symptoms.

Albuterol inhalers are used as rescue inhalersduring an acute asthma attack. Generally, individuals can take two puffs to help relieve symptoms. However, your healthcare provider may recommend taking up to four puffs. If symptoms are not relieved after 20 minutes, the dose can usually be repeated.

Albuterol works when the medication is inhaled to relieve asthma symptoms quickly. Someside effectsare associated with albuterol, such as nervousness or excitability. Side effects of albuterol may last for two to six hours. How long the side effects last depends on how many puffs of the medication you took.

Many individuals with asthma will have an asthma action plan from their healthcare provider that outlines steps to takeduring an asthma attack. The action plan typically explains what doses of medicines to take and when to seek emergency medical help.

If you’ve followed the steps in your asthma action plan or have taken the prescribed doses from your albuterol inhaler and are still experiencing symptoms, seek out medical treatment.

How Long Does Albuterol Last in Your System?Albuterol side effects generally last two to three hours. It can take time for all of the medication to leave your body, even if you are no longer experiencing its effects. Within 24 hours of the last dose, the majority of the albuterol will have left the body. However, it can take up to 72 hours for all of it to be excreted through urine and stool.

How Long Does Albuterol Last in Your System?

Albuterol side effects generally last two to three hours. It can take time for all of the medication to leave your body, even if you are no longer experiencing its effects. Within 24 hours of the last dose, the majority of the albuterol will have left the body. However, it can take up to 72 hours for all of it to be excreted through urine and stool.

Having a rescue inhaler, such as albuterol, with enough doses is essential when you face an asthma attack. If themedication has expired, there’s a chance it might not have retained its strength, quality, and purity.Most albuterol inhalers expire about one year after opening.

Knowing when a medication expires is essential for any medication. However, tracking expiration dates with medications such as rescue inhalers is crucial since their use is often sporadic. While you may feel secure knowing you have an inhaler handy, it may not prove effective once you use it if it’s past its expiration date.

If you use albuterol or other rescue inhaler, plan when you will get a refill. You don’t want to be caught without a safe and effective rescue inhaler when you suddenly need one. Consider adding a reminder in your phone or calendar a month or so before the expiration date so you have time to refill your prescription.

Calculating Doses

It is crucial to know how many doses are left so you do not end up with anempty inhaler. The majority of albuterol inhalers come with a counter. Typically, the number on the inhaler reads 203. The extra doses are because the inhaler must be primed before use. Priming an inhaler means shaking it and then releasing a couple of puffs of the medication into the air before using it as an inhaler.

The general guidance is to watch the dose counter. When it reaches 20, you should contact your pharmacy for a refill. Many albuterol inhalers also have a red flag that will appear as you get closer to zero doses. It is a visual aid to help you remember to refill the inhaler.

If your inhaler does not have a counter, there are several ways you can keep track of the doses used. For example, you could keep a piece of paper with your inhaler and mark it down each time you use it. You can also keep a note on your phone or other electronic device. Remember also to count the puffs of your inhaler used when priming it.

Understanding Expiration Dates

You may run into a situation where you must use your inhaler and realize it’s expired. If you are in an emergent situation and your only option is to use the expired inhaler, then it is okay. An expired albuterol inhaler won’t hurt you. However, the medication may not be as effective as before it expired, and you may require additional medical emergency services if yourasthma attack is not alleviated.

Keep in mind that expiration dates are only valid for inhalers stored according to the manufacturer’s instructions. If medications are not stored properly, they can become unstable and, therefore, ineffective or unsafe.

You may use a daily inhaled steroid to help control your asthma. You should also have a rescue inhaler on hand that you use before vigorous activity or during an acute attack. Daily-use controller inhalerscontain various steroidsand medication combinations. Inhalers vary in how long they last.

So, it’s a good idea to review the expiration date with your pharmacist when you pick up your inhaler. Other factors can contribute to an inhaler losing effectiveness prior to the expiration date, such as forgetting to put the cap back on the inhaler, storing it in a warm, humid place, or accidentally dropping it in water.

Here are a few examples of other commonly used inhalers and how long they last.

Several other inhalers are on the market, and the length each lasts varies depending on the type of inhaler and the medication.

Most medications, including inhalers, need to be kept at optimal temperatures. While you might want to keep your inhaler in your car for convenience, remember that hot or cold temperatures can compromise your medication.

Humidity, such as in a bathroom, can also alter the chemical composition of medications used in an inhaler. Humidity can also make your device slightly wet, interfering with the dose that is delivered with each inhalation.

Each inhaler will have specified temperatures and storage recommendations, so read the labels or ask your pharmacist for advice. It is also essential toclean your inhalerand any other equipment you use, such as a spacer or mask, according to the manufacturer’s instructions.

For example:

Don’t throw your inhaler in the trash when you are done with it or it has expired. The inhaler could explode if exposed to high temperatures (say, in a garbage truck) due to residual medication inside the canister. Medication and propellants could also leak out into the environment.

Instead, ask your pharmacist if they can dispose of your inhaler. Some pharmacies have drop-off boxes for drug disposal; others may hold special take-back days or events. Your local health department or police/fire station may do the same occasionally.

Summary

How long your albuterol inhaler will last can vary, but the short answer is generally about a year. If you’re in an emergency and your albuterol inhaler is over a year old, you can still use it. However, it might be less effective if it’s beyond the expiration date.

Most inhalers, including albuterol inhalers, have counters. If yours doesn’t, devise a system for tracking how many doses are left and when you need to refill it.

Several different inhalers are on the market, including rescue and controller inhalers. Remember that your inhalers probably don’t all last the same length of time, and each may have its own storage specifications and expiration dates. Doing so ensures you will have your medication available when you need it.

11 SourcesVerywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.American Academy of Family Physicians. familydoctor.org.How to use a metered dose inhaler.Cloutier MM, Baptist AP, Blake KV, et al.2020 focused updates to the asthma management guidelines: A report from the national asthma education and prevention program coordinating committee expert panel working group.Journal of Allergy and Clinical Immunology. 2020;146(6):1217-1270. doi:10.1016/j.jaci.2020.10.003Food and Drug Administration.Proair HFA (albuterol sulfate) label.National Capital Poison Center.Albuterol: safe use, expiration, and side effects.Johnson DB, Merrell BJ, Bounds CG.Albuterol.In: StatPearls. StatPearls Publishing; 2024.Food and Drug Administration.Expiration dates—questions and answers.DailyMed.Albuterol sulfate inhalation aerosol 90mcg per actuation.GSK.Treatment with flovent hfa(Fluticasone propionate inhalation aerosol).GSK.Treatment with advair diskus (Fluticasone propionate and salmeterol inhalation powder) or advair hfa(Fluticasone propionate and salmeterol inhalation aerosol).MedlinePlus drug information.Levalbuterol oral inhalation.Food and Drug Administration.Symbicort label.

11 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.American Academy of Family Physicians. familydoctor.org.How to use a metered dose inhaler.Cloutier MM, Baptist AP, Blake KV, et al.2020 focused updates to the asthma management guidelines: A report from the national asthma education and prevention program coordinating committee expert panel working group.Journal of Allergy and Clinical Immunology. 2020;146(6):1217-1270. doi:10.1016/j.jaci.2020.10.003Food and Drug Administration.Proair HFA (albuterol sulfate) label.National Capital Poison Center.Albuterol: safe use, expiration, and side effects.Johnson DB, Merrell BJ, Bounds CG.Albuterol.In: StatPearls. StatPearls Publishing; 2024.Food and Drug Administration.Expiration dates—questions and answers.DailyMed.Albuterol sulfate inhalation aerosol 90mcg per actuation.GSK.Treatment with flovent hfa(Fluticasone propionate inhalation aerosol).GSK.Treatment with advair diskus (Fluticasone propionate and salmeterol inhalation powder) or advair hfa(Fluticasone propionate and salmeterol inhalation aerosol).MedlinePlus drug information.Levalbuterol oral inhalation.Food and Drug Administration.Symbicort label.

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

American Academy of Family Physicians. familydoctor.org.How to use a metered dose inhaler.Cloutier MM, Baptist AP, Blake KV, et al.2020 focused updates to the asthma management guidelines: A report from the national asthma education and prevention program coordinating committee expert panel working group.Journal of Allergy and Clinical Immunology. 2020;146(6):1217-1270. doi:10.1016/j.jaci.2020.10.003Food and Drug Administration.Proair HFA (albuterol sulfate) label.National Capital Poison Center.Albuterol: safe use, expiration, and side effects.Johnson DB, Merrell BJ, Bounds CG.Albuterol.In: StatPearls. StatPearls Publishing; 2024.Food and Drug Administration.Expiration dates—questions and answers.DailyMed.Albuterol sulfate inhalation aerosol 90mcg per actuation.GSK.Treatment with flovent hfa(Fluticasone propionate inhalation aerosol).GSK.Treatment with advair diskus (Fluticasone propionate and salmeterol inhalation powder) or advair hfa(Fluticasone propionate and salmeterol inhalation aerosol).MedlinePlus drug information.Levalbuterol oral inhalation.Food and Drug Administration.Symbicort label.

American Academy of Family Physicians. familydoctor.org.How to use a metered dose inhaler.

Cloutier MM, Baptist AP, Blake KV, et al.2020 focused updates to the asthma management guidelines: A report from the national asthma education and prevention program coordinating committee expert panel working group.Journal of Allergy and Clinical Immunology. 2020;146(6):1217-1270. doi:10.1016/j.jaci.2020.10.003

Food and Drug Administration.Proair HFA (albuterol sulfate) label.

National Capital Poison Center.Albuterol: safe use, expiration, and side effects.

Johnson DB, Merrell BJ, Bounds CG.Albuterol.In: StatPearls. StatPearls Publishing; 2024.

Food and Drug Administration.Expiration dates—questions and answers.

DailyMed.Albuterol sulfate inhalation aerosol 90mcg per actuation.

GSK.Treatment with flovent hfa(Fluticasone propionate inhalation aerosol).

GSK.Treatment with advair diskus (Fluticasone propionate and salmeterol inhalation powder) or advair hfa(Fluticasone propionate and salmeterol inhalation aerosol).

MedlinePlus drug information.Levalbuterol oral inhalation.

Food and Drug Administration.Symbicort label.

Meet Our Medical Expert Board

Share Feedback

Was this page helpful?Thanks for your feedback!What is your feedback?OtherHelpfulReport an ErrorSubmit

Was this page helpful?

Thanks for your feedback!

What is your feedback?OtherHelpfulReport an ErrorSubmit

What is your feedback?