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Dulera Side Effects

Generic Name: formoterol / mometasone

Note: This document contains side effect information about formoterol / mometasone. Some of the dosage forms listed on this page may not apply to the brand name Dulera.

For the Consumer

Applies to formoterol / mometasone: inhalation aerosol powder

Along with its needed effects, formoterol/mometasone may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur while taking formoterol/mometasone:

Less common
  • Cough
  • fever
  • headache
  • muscle aches
  • pain or tenderness around the eyes and cheekbones
  • shortness of breath or troubled breathing
  • sore throat
  • stuffy or runny nose
  • tightness of the chest or wheezing
  • unusual tiredness or weakness
  • Sore mouth or tongue
  • white patches in the mouth or on the tongue
Incidence not known
  • Blindness
  • blurred vision
  • cough or hoarseness
  • creamy white, curd-like patches in the mouth or throat
  • darkening of the skin
  • decreased vision
  • diarrhea
  • dizziness
  • eye pain
  • fainting
  • fever or chills
  • loss of appetite
  • lower back or side pain
  • mental depression
  • nausea or vomiting
  • pain when eating or swallowing
  • painful or difficult urination
  • skin rash
  • tearing

Some side effects of formoterol/mometasone may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

Less common
  • Voice changes

For Healthcare Professionals

Applies to formoterol / mometasone: inhalation aerosol


Postmarketing reports: Angina pectoris, atrial fibrillation, ventricular extrasystoles, tachyarrhythmia, electrocardiogram QT prolongation, blood pressure increase (including hypertension)[Ref]

Nervous system

Common (1% to 10%): Headache

Mometasone Furoate:
Common (1% to 10%): Headache

Common (1% to 10%): Headache[Ref]


Uncommon (0.1% to 1%): Oral candidiasis[Ref]


Common (1% to 10%): Sinusitis, nasopharyngitis, dysphonia
Postmarketing reports: Cough, dyspnea, wheezing, bronchospasm

Mometasone Furoate:
Common (1% to 10%): Sinusitis, nasopharyngitis

Common (1% to 10%): Sinusitis, nasopharyngitis[Ref]

A long-term clinical trial was conducted to determine the safety over the course of a one year time period. The safety outcomes were similar to clinical trials conducted over a 12 to 26 week period with one exception. Dysphonia occurred with greater frequency in the long-term clinical trial. Dysphonia occurred at an incidence of 5% in patients randomized to the 100 mcg/5 mcg strength and 3.8% in patients randomized to 200 mcg/5 mcg strength.[Ref]


Postmarketing reports: Anaphylactic reaction, angioedema, severe hypotension, rash, pruritus[Ref]


Frequency not reported: Decrease in bone mineral density[Ref]


Frequency not reported: Glaucoma, increased intraocular pressure, cataracts[Ref]


Frequency not reported: Nausea[Ref]


The most common side effects reported include sinusitis, nasopharyngitis, and headache.


Postmarketing reports: Hypokalemia, hyperglycemia


1. "Product Information. Dulera (formoterol-mometasone)." Schering-Plough Corporation, Kenilworth, NJ.

Some side effects of Dulera may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This material does not endorse drugs, diagnose patients, or recommend therapy. This information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate safety, effectiveness, or appropriateness for any given patient. does not assume any responsibility for any aspect of healthcare administered with the aid of materials provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the substances you are taking, check with your doctor, nurse, or pharmacist.