Medicines & Supplements A to Z > Fludrocortisone


Last updated on 26/07/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  

GENERIC NAME: Fludrocortisone



DRUG CLASS: Corticosteroids

SUB CLASS: Mineralocorticoids

USED FOR: Addison’s disease, Congenital adrenal hyperplasia


What is Fludrocortisone for?

Fludrocortisone belongs to a class of medications called mineralocorticoids. It works by controlling sodium level and fluid in your body to treat addison’s disease and congenital adrenal hyperplasia.

How to use it?

Fludrocortisone is taken orally as tablets.

For Addison’s disease:
0.05-0.2 mg once daily based on severity and tolerance, usually in combination with a glucocorticoid. 

For congenital adrenal hyperplasia:
0.1-0.2 mg once daily.

What are the side effects of Fludrocortisone?

Common side effects of Fludrocortisone include oedema, bruising, impaired wound healing, muscle weakness, headache, vertigo, or irregular periods.

Who should not take Fludrocortisone?

– People who are allergic to Fludrocortisone or any component of the formulation.
– Patients with systemic fungal infections.

Pharmacist Tips:

– Do not suddenly stop using this medication.
– Avoid alcohol use while taking this medication.
– Avoid exposure to chickenpox or measles. If an exposure occurs, seek medical help immediately.
– This drug may cause hypertension. Check your blood pressure regularly and report any symptoms such as dizziness, headache, fatigue, or shortness of breath.

Common dosing schedule:
Fludrocortisone should be taken in the morning, with or without food. However, you may take it with food if you experience an upset stomach. 

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Fludrocortisone may interact with:
– Vaccines
– Diuretics, e.g. Frusemide, Hydrochlorothiazide
– Antidiabetics drugs, e.g. Metformin, Empagliflozin

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Fludrocortisone in Hong Kong?

In Hong Kong, Fludrocortisone is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Fludrocortisone in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.