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Hydrocortisone

Hydrocortisone is used to relieve swelling, redness, itch and allergic reactions. It is also used in adrenal insufficiency which is a condition where the body does not produce enough steroids. Learn how to use the medication, its common side effects, special precautions to watch out for, and more.
  • Article last reviewed 15 May 2026
  • 9 mins read

What is this medication for?

Hydrocortisone belongs to a group of medication called steroids. It is used in adrenal insufficiency which is a condition where the body does not produce enough steroids.

Hydrocortisone can also be used to relieve swelling, redness, itch and allergic reactions.

It is often used for various conditions such as

  • Asthma
  • Severe allergies
  • Skin problems
  • Certain types of arthritis
  • Certain diseases of the immune system such as Lupus

How should I take or use this medication?

  • Take the medication as prescribed by your doctor.
  • Take this medication with food to prevent stomach upset.
  • If you are taking a dose in the night, do not take it too late as it might keep you awake.
  • You should still continue to take your medication regularly as told by your doctor even if you feel well. Stopping your medication suddenly without informing your doctors may cause your condition to become worse quickly.

What should I do if I forget to take or use this medication?

If you forget to take a dose, take it as soon as you remember. Then take your next dose at the usual time. Do not take two doses to make up for the missed dose.

What precautions should I take when taking or using this medication?

Before starting on this medication, inform your doctor if you have the following medical conditions:

  • Diabetes
  • High blood pressure
  • Stomach ulcers
  • Thyroid disease
  • Myasthenia gravis
  • Osteoporosis (weak and fragile bones)
  • Glaucoma (increased pressure in the eye)
  • Mood related conditions
  • Any heart, liver or kidney problems
  • Tuberculosis
  • Epilepsy (seizure)
  • You should let your doctor know if you are not feeling well or going for surgery as the medication dose may need to be changed.
  • If you are pregnant or planning to get pregnant or are breastfeeding, you should inform your doctor.
  • If you have been advised to receive vaccines, inform your healthcare provider that you are taking this medication. Some vaccines may not be suitable for use in patients who are taking hydrocortisone.
  • If you have taken other steroids before, and had a bad reaction to it, such as having muscle weakness or experienced some mood changes.
  • This medication may cause you to get infections more easily. Please inform your doctor if you have any infection before you start this medication. Avoid crowded places or being near people who are sick. Avoid close contact with people who have chicken pox, shingles or measles

What are some common side effects of this medication? ​

The common side effects include

  • Upset stomach, nausea, vomiting
  • Increased appetite, weight gain, fluid retention
  • Increased sweating
  • Feeling restless

What are some rare but serious side-effects that I need to seek medical advice immediately? 

Other rare but serious effects that may occur include:

  • Mood changes like feeling depressed, anxious, fluctuating feelings
  • Fast weight gain, especially on the face and upper back
  • Significant fluid retention
  • Very bad stomach pain
  • Bruising more easily
  • Muscle weakness or pain
  • Change in eyesight or vision
  • Bloody or black, tarry stools
  • Signs of high blood sugar, such as confusion, lethargy, increased thirst, increased hunger, passing urine more often
  • Signs of infection, such as fever, chills, sore throat, mouth sores or wounds that does not heal

If you experience severe nausea or vomiting, or are unable to take the medication by mouth, see your healthcare professional immediately.

The symptoms of a drug allergy which include one or more of the following:

  • Swollen face/eyes/lips/tongue
  • Difficulty in breathing
  • Itchy skin rashes over your whole body

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

You can also find out about drug allergies by watching these videos:

For videos in 中文, Melayu and தமிழ், click here

What food or medication should I avoid when I take or use this medication?

  • Check with your doctor if you can drink alcohol when taking this medication, as this may increase your risk of gastrointestinal problems.
  • Inform your doctor on the other medications which you are currently taking.

How should I store this medication?

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.

How do I throw away this medication safely? ​

Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin. 

What else should I know about this medication? 

A steroid emergency card may be given to you if your body is dependent on corticosteroid medications and is unable to produce enough of the natural hormone cortisol.

  • Always keep the steroid emergency card with you, and for at least 12 months after stopping corticosteroid treatment.
  • Always show the healthcare professionals your steroid card if you go to the emergency department or visit any doctor.
  • Inform your next-of-kin that you are taking corticosteroids.
  • Bring along the card when travelling.

What to do if you feel unwell (e.g. fever, vomiting, or diarrhoea)?

  • Do not stop your steroid suddenly unless advised by your doctor.
  • See a doctor as soon as possible and let them know that you are taking steroids.
  • If you are still able to take your corticosteroid medications, increase your steroid dose when you are unwell (follow your doctor's specific instructions) and resume your old dose when you have fully recovered.
  • If you are vomiting or you are unable to take your corticosteroid medications,go to the emergency department as this is dangerous and you may need an injection form of corticosteroids.

Disclaimer

Please take note that the above is not a complete list of all possible side-effects. If you have any concerns about your medication or if you have other side-effects that you think are caused by this medication, please consult your doctor or pharmacist. If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.

This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (NHG Health, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.