What is Asmanex: Uses, Warnings & Interactions

What is Asmanex: Uses, Warnings & Interactions

Updated Jul 11, 2025 • Published Oct 23, 2021

Asmanex is an inhaled corticosteroid used to prevent and control asthma symptoms in people aged 4 years and older.

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Asmanex overview

BRAND NAMES:

Asmanex
Asmanex Twisthaler

Generic Names:

Mometasone
Mometasone furoate inhaled

Uses:

Management of asthma

Therapeutic Classes:

Inhaled corticosteroid

Forms:

Inhalation powder
Inhalation spray

How it’s taken:

Inhaled by mouth

What is Asmanex used for?

Prevention of asthma symptoms.
Control of asthma symptoms.
Asmanex is not a rescue inhaler. It should not be used to treat an asthma attack.

What form(s) does Asmanex come in

Inhaled powder
Inhaled spray

What are common Asmanex doses?

110 mcg
220 mcg

Common Asmanex prescriptions

Asmanex
1 aerosol powder breath activated inhaler
Asmanex
110mcg/act (30 inhalations) inhaler
Asmanex
220mcg/act (120 inhalations) inhaler
Asmanex
220mcg/act (30 inhalations) inhaler
Asmanex
220mcg/act (60 inhalations) inhaler

How to take Asmanex

Inhale rapidly and deeply.
Rinse your mouth with water and spit out the contents without swallowing after administration.

What to do if you miss a dose of Asmanex

Asmanex contraindications

People with acute severe asthma.
People with a sensitivity or allergy to milk proteins or any other ingredients of Asmanex.

Asmanex warnings

Asmanex interactions

Use Asmanex with caution in people taking strong cytochrome P450 3A4 inhibitors (i.e., ritonavir). The interaction may increase systemic corticosteroid effects.

Asmanex side effects

Common side effects:

Headache
Allergic rhinitis
Sore throat
Upper respiratory tract infection
Sinus infection
Oral thrush
Menstrual cramps
Musculoskeletal pain
Back pain
Indigestion

Sources:

Asmanex prescribing information, Organon
Asmanex patient information, Organon