Medically reviewed by Jessica Swirble, PharmD
Last updated on April 18, 2025
Drug Information | Side Effects | Use & Dosage | Request an Online Prescription
Dexamethasone is a corticosteroid, a medicated form of the naturally occurring hormones produced by the adrenal glands (two small glands located above your kidneys). These glands produce corticosteroids that regulate inflammation, metabolism, stress responses, blood pressure, and blood sugar levels. Dexamethasone is specifically used to treat inflammation and inflammatory conditions in various body parts.
Dexamethasone is used to treat inflammation and inflammatory conditions in various parts of the body.
This includes:
This is not a complete list of all conditions that dexamethasone is used to treat.
Dexamethasone is classified as a corticosteroid. It is the synthesized version of naturally occurring hormones produced by the adrenal glands, which help regulate several functions in the body. Corticosteroid medications stop your immune system from overreacting to triggers by blocking specific proteins that cause swelling and inflammation.
Dexamethasone is available in the following forms:
The dosage and frequency of use depend on the condition being treated, its severity, and how you respond to the medication.
Follow your healthcare provider's instructions regarding dosage and schedule. Do not exceed the prescribed dose or frequency of use without consulting your provider.
The time it takes to feel better can vary depending on the condition being treated and individual response to the medication. Some people may start noticing improvements within a few hours, while for others, it might take several days.
Continue using dexamethasone as prescribed, even if you start feeling better. Regular use according to your prescription is crucial for effectively managing your condition.
While dexamethasone is primarily used for treating inflammation, allergic reactions, and certain types of arthritis, healthcare providers may prescribe it off-label for other conditions, such as severe asthma attacks, or as part of chemotherapy treatment.
Discuss any alternative uses of dexamethasone with your healthcare provider.
Dexamethasone is available in the following dosage forms:
Dexamethasone is a prescription medication. You will need a valid prescription from a licensed healthcare provider to obtain this medication.
The use of dexamethasone can lead to various side effects in some individuals.
Common mild side effects of dexamethasone use include:
More severe side effects of dexamethasone use can include:
If you experience any severe or concerning side effects while taking dexamethasone, contact your healthcare provider right away.
Inform your healthcare provider about any existing medical conditions, allergies, or other medications you are taking before starting treatment with dexamethasone. This includes prescription drugs, over-the-counter medications, and dietary supplements, as they may interact with dexamethasone.
Tell your provider if you are taking these medications or supplements:
You should also mention medical conditions such as:
If you are pregnant, planning to become pregnant, or breastfeeding, discuss the potential risks and benefits of using dexamethasone with your healthcare provider.
Take dexamethasone exactly as prescribed by your healthcare provider. Do not exceed the recommended dose or length of treatment.
You may be asked to eat a low-salt, high-potassium, and high-protein diet while taking dexamethasone.
Dexamethasone should be taken with food or milk to help reduce stomach upset. To ensure the medication's effectiveness, it's important to complete the full course of treatment, especially if it's part of a scheduled regimen for conditions like inflammation or autoimmune disorders.
In case of a dexamethasone overdose, seek medical attention immediately. Symptoms of overdose may include severe drowsiness, rapid weight gain, swelling, or severe dizziness. If you suspect an overdose, contact the poison control helpline at 1-800-222-1222 or call emergency services.
Dexamethasone is available in the following forms:
The typical starting dose of dexamethasone varies depending on the condition being treated, the severity of symptoms, and individual patient factors. It is crucial to follow your healthcare provider's instructions regarding dosage and administration.
For inflammatory and autoimmune conditions:
The dosage may be adjusted based on the response and tolerance to the medication. Your healthcare provider will determine the most appropriate dose based on your medical history and your response to the medication.
Dexamethasone should be taken as prescribed by your healthcare provider. Do not exceed the recommended dose or duration of treatment without consulting your provider.
If you have any questions about your dosage or need adjustments, contact your healthcare provider for guidance. If you want to talk to a provider right away, consider scheduling an online doctor appointment through a telehealth platform like Sesame.
If you miss a dose of dexamethasone, take it as soon as you remember unless it is close to the time for your next scheduled dose. In that case, skip the missed dose and continue your regular dosing schedule. Do not double the dose to make up for a missed one.
Take dexamethasone around the same time every day to maintain an even level of medication in your body.
Continue taking dexamethasone as prescribed by your healthcare provider, even if you start feeling better. It's important to keep taking the medication as directed to manage your condition effectively.
If you have any concerns or questions about your medication, discuss them with your healthcare provider for medical advice and recommendations.
Store dexamethasone according to the instructions provided by your healthcare provider or pharmacist. Keep it at room temperature, away from light and moisture. Ensure the container is tightly closed and out of reach of children.
Do not use expired medication or medications that appear damaged or discolored. If you have any questions about storage, consult your healthcare provider or pharmacist for guidance.