Dulera is a prescription medication that belongs to a class of drugs known as combination long-acting beta agonists and corticosteroids. It is primarily used to treat asthma in individuals who are 12 years of age and older. This medication provides relief from asthma symptoms and helps to prevent asthma attacks.

Warnings and Precautions

While it can be highly effective in managing asthma symptoms, it is crucial to be aware of the potential risks and precautions to ensure safe and optimal usage.

Allergic Reactions

One of the primary warnings associated with Dulera is the possibility of allergic reactions. Some individuals may be hypersensitive to the active ingredients in the medication, leading to allergic symptoms such as rash, itching, swelling, or difficulty breathing. If you experience any signs of an allergic reaction, it is essential to seek immediate medical attention.

Asthma-Related Death

In rare cases, asthma-related death has been reported with the use of Dulera. This risk is higher in individuals with severe asthma or those who are not effectively controlling their asthma symptoms. It is crucial to follow the prescribed dosage and use Dulera as directed by your healthcare provider.

Respiratory Effects

Dulera is primarily used to manage asthma, but it can also have potential respiratory effects. It may cause bronchospasm, which can worsen breathing difficulties. If you experience increased wheezing, shortness of breath, or worsening of asthma symptoms after using Dulera, contact your healthcare provider immediately.


The use of corticosteroids, such as the active ingredient in Dulera, may lead to immunosuppression. This means that your immune system may be weakened, increasing the risk of infections. It is important to take necessary precautions to avoid exposure to contagious illnesses and promptly report any signs of infection to your healthcare provider.

Adrenal Insufficiency

Prolonged use of Dulera or high doses of corticosteroids may suppress the production of natural steroids in the body, leading to adrenal insufficiency. Adrenal insufficiency can cause fatigue, weakness, weight loss, low blood pressure, and other symptoms. It is important to discuss with your doctor about the potential risks and regularly monitor adrenal function if you are on long-term Dulera therapy.

Growth Effects in Children

Children who use Dulera over an extended period may experience a reduction in growth velocity. It is recommended to monitor the growth of children regularly while they are on Dulera and discuss any concerns with their healthcare provider.

Side Effects

While Dulera can be highly effective in managing asthma symptoms, it is essential to be aware of the potential side effects it may cause. Understanding these side effects will help you make an informed decision and ensure your safety while using this medication.

Common Side Effects

  • Headache: A common side effect of Dulera is a headache. This may occur as your body adjusts to the medication but usually improves over time. If the headaches persist or become severe, it is advisable to consult your healthcare provider.
  • Sore Throat: Some individuals may experience a sore throat after using Dulera. This side effect is generally mild and temporary, resolving without any specific treatment.
  • Nasal Congestion: Dulera can cause nasal congestion, leading to a stuffy or runny nose. Using a saline nasal spray may help alleviate this symptom. If the congestion persists or worsens, consult your doctor.
  • Hoarseness: Dulera may cause hoarseness or changes in voice. This side effect is usually temporary and resolves on its own. If it persists or causes concern, consult your healthcare provider.
  • Cough: A dry or irritated cough is a possible side effect of Dulera. This may occur due to the medication’s effect on the throat and airways. If the cough persists or becomes severe, seek medical advice.
  • Thrush: In some cases, Dulera may increase the risk of developing oral thrush, a fungal infection in the mouth. Maintaining good oral hygiene, such as rinsing the mouth after using the inhaler, can help reduce the risk. If you notice white patches or sores in your mouth, consult your doctor.
  • Muscle or Joint Pain: Dulera may cause muscle or joint pain, although this side effect is relatively rare. If you experience persistent or severe pain, it is important to seek medical attention.

Rare Side Effects

  • Allergic Reactions: While rare, some individuals may develop allergic reactions to Dulera. Symptoms of an allergic reaction may include hives, itching, swelling, difficulty breathing, or rash. If you experience any of these symptoms, seek immediate medical help.
  • Eye Problems: Dulera has been associated with the development of glaucoma or cataracts in rare cases. Regular eye examinations are recommended for individuals using Dulera long-term, especially those with a family history of eye conditions.
  • Increased Blood Pressure: Dulera may cause a temporary increase in blood pressure. Regular monitoring of blood pressure is important, particularly in individuals with a history of hypertension or cardiovascular conditions.
  • Adrenal Insufficiency: In rare instances, the use of Dulera may suppress the production of natural steroid hormones by the adrenal glands. This can lead to adrenal insufficiency, which may present as fatigue, weakness, and weight loss. Consult your healthcare provider if you experience these symptoms.
  • Bone Density Loss: Long-term use of high-dose inhaled corticosteroids, such as mometasone in Dulera, has been associated with a potential risk of reduced bone mineral density. Regular bone density assessments may be recommended for individuals at higher risk, such as postmenopausal women.
  • Delayed Growth in Children: Children using Dulera for an extended period may experience a slight delay in growth. Regular monitoring of growth is essential for children using this medication long-term.

Severe Side Effects

  • Worsening Asthma Symptoms: While Dulera is designed to improve asthma symptoms, in rare cases, it may cause paradoxical bronchospasm, which leads to a sudden worsening of breathing difficulties. If you experience increased wheezing, shortness of breath, or chest tightness after using Dulera, seek immediate medical attention.
  • Respiratory Infections: Dulera may increase the risk of respiratory infections, such as pneumonia or bronchitis. If you develop symptoms such as persistent cough, fever, or difficulty breathing, contact your healthcare provider.
  • Adverse Effects on Glucose Levels: Dulera may affect blood sugar levels, particularly in individuals with pre-existing diabetes. Regular monitoring of blood glucose is crucial for diabetic patients using this medication.
  • Systemic Effects: Although rare, high doses of inhaled corticosteroids, such as mometasone in Dulera, can potentially lead to systemic effects. These may include suppression of the immune system, increased susceptibility to infections, and adrenal insufficiency.
  • Psychological Effects: In rare cases, the use of corticosteroids, including those in Dulera, may cause mood changes, anxiety, or depression. If you experience significant changes in mood or mental health, consult your healthcare provider.
  • Cardiovascular Effects: Dulera, like other medications containing long-acting beta-agonists, may increase the risk of cardiovascular events, such as palpitations, increased heart rate, or chest pain. If you experience any concerning cardiovascular symptoms, seek medical attention promptly.

Drug Interactions

Dulera is a commonly prescribed medication for the management of asthma. It contains a combination of two active ingredients, formoterol and mometasone, which work together to provide relief from asthma symptoms. However, it is crucial to be aware of potential drug interactions to ensure the safe and effective use of Dulera.


Beta-blockers, commonly used for cardiovascular conditions, may antagonize the effects of formoterol. This can lead to decreased bronchodilation and potentially worsen asthma symptoms. It is essential to inform your healthcare provider if you are taking beta-blockers while using Dulera.

Antifungal Medications

Certain antifungal medications, such as ketoconazole or itraconazole, can inhibit the metabolism of mometasone. This can increase the concentration of mometasone in the body and potentially lead to side effects. Your doctor may need to adjust the dose of Dulera or consider alternative treatment options if you require antifungal therapy.

Certain Antibiotics

Some antibiotics, like clarithromycin or erythromycin, may interfere with the metabolism of formoterol. This can prolong the effects of formoterol and increase the risk of adverse reactions. It is important to inform your healthcare provider if you are taking antibiotics while using Dulera.


Certain diuretics, such as furosemide or hydrochlorothiazide, may reduce the potassium levels in your body. This can increase the risk of hypokalemia when combined with formoterol, which can have adverse effects on heart function. Regular monitoring of potassium levels may be necessary if you are taking diuretics alongside Dulera.

Strong CYP3A4 Inhibitors

Drugs that inhibit the enzyme CYP3A4, such as ritonavir or grapefruit juice, can increase the systemic exposure of mometasone. This may lead to an increased risk of systemic corticosteroid side effects. It is advisable to consult your healthcare provider if you are using strong CYP3A4 inhibitors while on Dulera.

How To Use

While Dulera is an effective way to manage asthma, it is important to use the inhaler correctly and properly to ensure the safe, effective, and optimal usage.

  1. Shake the Inhaler: Before using Dulera, shake the inhaler vigorously to ensure that the contents are well-mixed. This step is crucial as it helps distribute the medication evenly.
  2. Exhale Completely: Take a deep breath in and exhale fully to empty your lungs as much as possible. This step helps create space for the medication to reach deep into the airways.
  3. Position the Inhaler: Hold the Dulera inhaler in an upright position with the mouthpiece facing you. Make sure the inhaler is at a 90-degree angle to your mouth for proper delivery of the medication.
  4. Close your Lips around the Mouthpiece: Form a tight seal around the mouthpiece with your lips to prevent the medication from escaping. This ensures that the medicine reaches your lungs effectively.
  5. Inhale Slowly and Deeply: Begin to inhale slowly and deeply through your mouth while simultaneously pressing down on the inhaler to release the medication. Continue to inhale until your lungs are full, ensuring that the medication reaches deep into the airways.
  6. Hold Your Breath: After inhaling the medication, hold your breath for about 5 to 10 seconds to allow the medication to settle in your lungs. This step maximizes the absorption of the medication into the airways.
  7. Exhale Slowly: Exhale slowly and gently through your nose or mouth. Avoid exhaling forcefully, as this may expel the medication from your lungs prematurely.
  8. Rinse your Mouth: To minimize the risk of developing oral thrush or other mouth-related side effects, rinse your mouth with water after using Dulera. Spit out the water without swallowing it.
  9. Clean the Inhaler: To maintain the effectiveness of the inhaler, clean it regularly as per the instructions provided by your healthcare provider or the manufacturer. A clean inhaler ensures proper functioning and accurate dosage.


Dulera is an effective medication for managing asthma symptoms and preventing asthma attacks. It is essential to follow the dosing instructions provided by your healthcare provider to achieve optimal asthma control.

Starting Dose

The usual starting dose for adults and adolescents aged 12 years and older is one inhalation of Dulera 100 mcg/5 mcg twice daily. This dose provides an initial maintenance treatment for asthma. It is important to note that the maximum recommended daily dose is two inhalations of Dulera 200 mcg/5 mcg twice daily.

Adjusting the Dose

After starting Dulera, your healthcare provider may adjust the dose based on your individual response to the medication. The goal is to find the lowest effective dose that controls asthma symptoms. It is essential to follow your healthcare provider’s instructions and not change the dose or frequency of use without consulting them.

Overdose of Dulera

An overdose of Dulera can be dangerous and may require immediate medical attention. If you or someone else has accidentally taken more than the prescribed dose, contact emergency services or seek medical help right away. Overdosing on Dulera can lead to symptoms such as tremors, chest pain, increased heart rate, headache, nervousness, or seizures. It is crucial to follow the prescribed dosing guidelines to minimize the risk of an overdose.

Missed Dose of Dulera

If you miss a dose of Dulera, take it as soon as you remember. However, if it is close to the time for your next scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take a double dose to make up for the missed one. Taking extra doses can increase the risk of side effects and may not provide additional benefit in controlling asthma symptoms.


Proper storage of medication is essential to maintain its efficacy and ensure your safety.

  • Check the Expiration Date: Before storing Dulera, always check the expiration date on the packaging. Expired medication may not provide the desired therapeutic effect and can potentially be harmful. If your Dulera has expired, dispose of it properly and obtain a fresh supply from your healthcare provider.
  • Store at the Recommended Temperature: Dulera should be stored at room temperature, typically around 68°F to 77°F (20°C to 25°C). Avoid exposing the medication to extreme temperatures, such as direct sunlight, freezing temperatures, or excessive heat. Fluctuations in temperature can impact the integrity and effectiveness of the medication.
  • Keep Dulera in Its Original Packaging: To maintain the quality of Dulera, it is best to store it in its original packaging. The packaging is designed to protect the medication from light and moisture, preserving its potency. If the packaging becomes damaged, consult your pharmacist for guidance on proper storage alternatives.
  • Protect from Moisture: Moisture can degrade the quality of medication, including Dulera. It is crucial to keep the inhaler dry at all times. Avoid storing Dulera in a bathroom, where humidity levels are high. Additionally, do not expose the inhaler to water or other liquids.
  • Use the Provided Storage Case: Dulera often comes with a storage case or pouch. This case is designed to protect the inhaler from damage and exposure to external elements. When not in use, keep the inhaler in the provided storage case and store it in a safe place, away from children and pets.
  • Keep Away from Children and Pets: Dulera contains active ingredients that can be harmful if ingested by children or pets. Store the medication in a secure location, out of their reach. Consider using childproof containers or cabinets to further prevent accidental access.
  • Do Not Freeze Dulera: Freezing Dulera can compromise its integrity and render it ineffective. Avoid storing the inhaler in the freezer or exposing it to extremely cold temperatures. If Dulera accidentally freezes, consult your pharmacist or healthcare provider for guidance.
  • Check for Physical Changes: Before each use, inspect the Dulera inhaler for any physical changes. Ensure that the canister is properly inserted and securely attached to the actuator. If you notice any defects, such as a broken or damaged inhaler, do not use it. Contact your healthcare provider for a replacement.
  • Do Not Disassemble the Inhaler: The Dulera inhaler is a sealed unit and should not be disassembled or tampered with. Avoid removing the canister from the actuator or attempting to modify any parts. Disassembling the inhaler can affect its functionality and lead to improper dosing.
  • Store Away from Open Flames: Dulera is an aerosol inhaler and contains flammable propellants. Keep the inhaler away from open flames, sparks, or sources of ignition. Smoking near the medication is strongly discouraged, as it poses a fire hazard.


Dulera is a prescription inhaler used to treat asthma, and it’s important to handle its disposal correctly to avoid any potential harm to the environment or others.

1. Check the Expiration Date: Before disposing of Dulera, it’s crucial to check the expiration date. If the inhaler has expired, it should not be used or passed on to others. Expired medications may lose their effectiveness and can potentially be harmful. Look for the expiration date on the packaging or the inhaler itself. If the medication is expired, proceed to the next step.

2. Remove the Canister: To begin the disposal process, remove the canister from the inhaler. This can be done by gently pulling the canister out from the plastic casing. Ensure that the canister is empty and does not contain any residual medication.

3. Safely Dispose of the Canister: Once the canister has been removed, it’s important to dispose of it properly. Here are a few methods you can use:

    • Recycling: Check with your local recycling facilities to determine if they accept empty inhalers for recycling. If they do, you can place the empty Dulera canister in the appropriate recycling bin. Ensure that the canister is empty before recycling it.
    • Medication Take-Back Programs: Many communities have medication take-back programs that allow individuals to safely dispose of unused medications. These programs often have designated drop-off locations where you can bring your Dulera inhaler for proper disposal. Contact your local pharmacy or health department to inquire about these programs in your area.
    • Household Trash: If recycling or take-back programs are not available in your area, you can dispose of the empty Dulera canister in your household trash. However, to prevent accidental ingestion by children or pets, it is recommended to take additional precautions. You can place the canister in a sealed bag or container before throwing it away.

4. Dispose of the Plastic Inhaler: Once the canister has been safely disposed of, you can focus on the plastic inhaler itself. Follow these steps to dispose of the plastic inhaler responsibly:

    • Check for Recycling Options: Similar to the canister, check if your local recycling facilities accept plastic inhalers for recycling. If they do, rinse the inhaler to remove any residual medication, remove any labels or stickers, and place it in the recycling bin.
    • Medication Take-Back Programs: If recycling is not an option, consider utilizing medication take-back programs that accept plastic inhalers. Follow the instructions provided by the program to safely dispose of the inhaler.
    • Household Trash: As a last resort, you can dispose of the plastic inhaler in your household trash. However, take precautions to ensure the inhaler is not accessible to children or pets. Placing it in a sealed bag or container can help prevent accidental ingestion.

IMPORTANT NOTE: The information provided here is for educational purposes only and is not intended to serve as medical advice, diagnosis, or treatment recommendations. It should not be taken as an endorsement of any specific medication or treatment. Individual health conditions and responses to treatment can vary greatly; therefore, this information should not be seen as a guarantee of safety, suitability, or effectiveness for any particular individual. Always consult with a healthcare professional for personalized medical advice and before making any decisions regarding your health or treatment plans.

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