Fluticasone/Salmeterol Is a Combination Inhaler Used to Treat Asthma and COPD

Fluticasone/Salmeterol is a prescription combination inhaler that contains an inhaled corticosteroid (Fluticasone) and a long-acting bronchodilator (Salmeterol) to help control asthma and chronic obstructive pulmonary disease (COPD) symptoms long-term.

If you've been prescribed this medication — or you're researching it before talking to your doctor — this guide covers everything you need to know: what it is, how it works, how to take it, who shouldn't use it, and what it costs in 2026.

What Is Fluticasone/Salmeterol?

Fluticasone/Salmeterol combines two active ingredients in a single inhaler:

• Fluticasone Propionate — An inhaled corticosteroid (ICS) that reduces inflammation in the airways.
• Salmeterol Xinafoate — A long-acting beta-2 agonist (LABA) that relaxes the muscles around the airways, keeping them open for up to 12 hours.

Together, these two components address both the inflammation and the airway narrowing that cause breathing difficulties in asthma and COPD.

Brand and Generic Names

Fluticasone/Salmeterol is available under several brand and generic names:

• Advair Diskus — Dry powder inhaler, made by GlaxoSmithKline (GSK). Available in 100/50, 250/50, and 500/50 mcg strengths.
• Advair HFA — Metered-dose inhaler (MDI), also by GSK. Available in 45/21, 115/21, and 230/21 mcg strengths.
• AirDuo RespiClick — Dry powder inhaler by Teva. Available in 55/14, 113/14, and 232/14 mcg strengths.
• AirDuo Digihaler — A digital version of AirDuo with a built-in sensor that tracks inhaler use.
• Wixela Inhub — The FDA-approved generic equivalent of Advair Diskus, made by Viatris (Mylan). Same strengths as Advair Diskus.

Drug Class and Schedule

Fluticasone/Salmeterol belongs to the ICS/LABA combination drug class. It is not a controlled substance — you don't need a DEA-scheduled prescription, and there are no special restrictions on refills or transfers.

What Is Fluticasone/Salmeterol Used For?

The FDA has approved Fluticasone/Salmeterol for:

• Maintenance treatment of asthma in patients aged 4 and older (Advair Diskus) or 12 and older (Advair HFA, AirDuo). It's intended for patients whose asthma is not adequately controlled on an inhaled corticosteroid alone.
• Maintenance treatment of COPD, including chronic bronchitis and emphysema.
• Reducing COPD exacerbations in patients with a history of flare-ups.

Important: Fluticasone/Salmeterol is a maintenance medication. It is not a rescue inhaler and should not be used to treat sudden breathing problems. You still need a short-acting rescue inhaler (like Albuterol) for acute symptoms.

How Is Fluticasone/Salmeterol Taken?

The standard dosing for all formulations is one inhalation twice daily, approximately 12 hours apart. Your doctor will prescribe the lowest effective strength based on your condition.

Typical Doses

• Asthma: Start with the lowest strength and step up only if needed. For example, Advair Diskus 100/50 mcg twice daily for mild-moderate asthma.
• COPD: Advair Diskus 250/50 mcg, one inhalation twice daily is the standard dose.

How to Use Your Inhaler

Proper technique is critical for getting the full dose into your lungs:

1. For the Diskus: Open the device, slide the lever to load a dose, exhale fully (away from the device), place your lips around the mouthpiece, inhale deeply and steadily, hold your breath for about 10 seconds, then exhale slowly.
2. For the HFA (metered-dose inhaler): Shake well, exhale fully, press down on the canister while inhaling slowly and deeply, hold your breath for 10 seconds.
3. For all formulations: Rinse your mouth with water and spit it out after each use. This prevents oral thrush (a yeast infection in the mouth).

Do not exceed the prescribed dose. If you miss a dose, take it as soon as you remember — but if it's almost time for your next dose, skip the missed one. Never take two doses at once.

Who Should Not Take Fluticasone/Salmeterol?

Fluticasone/Salmeterol is not appropriate for everyone. Do not use it if you:

• Have a severe allergy to milk proteins — The Diskus and Inhub formulations contain lactose derived from milk.
• Are allergic to Fluticasone, Salmeterol, or any ingredient in the inhaler.
• Need treatment for acute bronchospasm or an asthma attack — Use a rescue inhaler instead.
• Are experiencing status asthmaticus (a severe asthma attack that doesn't respond to normal treatment).

Use with caution if you have:

• Heart disease, high blood pressure, or irregular heartbeat
• Seizure disorders
• Thyroid problems
• Diabetes (the medication can raise blood sugar)
• Osteoporosis or low bone density
• Liver disease (Fluticasone is metabolized by the liver)
• Active or history of tuberculosis or other infections

Tell your doctor about all medications you take — Fluticasone/Salmeterol has important drug interactions, especially with strong CYP3A4 inhibitors and beta-blockers.

How Much Does Fluticasone/Salmeterol Cost?

The cost varies significantly depending on whether you get the brand-name or generic version:

• Advair Diskus (brand): $250–$500+ for a 30-day supply without insurance.
• Advair HFA (brand): $300–$550 for a 30-day supply without insurance.
• Wixela Inhub (generic): $60–$225 without insurance. As low as $64 with a GoodRx coupon.
• AirDuo RespiClick: Similar pricing to Wixela Inhub for authorized generic versions.

Most insurance plans cover Fluticasone/Salmeterol, especially generic versions. Some plans require step therapy — meaning you must try an ICS-only inhaler first before they'll approve the combination. Prior authorization may be needed for brand-name Advair.

For help reducing costs, see our guide on how to save money on Fluticasone/Salmeterol. Manufacturer savings programs from GSK and Viatris can bring copays down to as low as $10 per month for eligible commercially insured patients.

Final Thoughts

Fluticasone/Salmeterol is one of the most widely prescribed combination inhalers for asthma and COPD. It's been on the market for over two decades, and generic options have made it more accessible and affordable than ever. The key is using it correctly — twice daily, with proper inhaler technique, and always rinsing your mouth after use.

If you're having trouble finding Fluticasone/Salmeterol at your pharmacy, use Medfinder to check which pharmacies near you have it in stock. And for a deeper look at how this medication works in your body, check out our mechanism of action guide.