Medicines & Supplements A to Z > Adrenaline


Last updated on 15/07/2021.

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

GENERIC NAME: Adrenaline




DRUG CLASS: Sympathomimetics

SUB CLASS: Alpha agonists, Beta agonists

USED FOR: Anaphylactic shock

– 1:1000, 1:10000 (injections)

What is Adrenaline for?

Adrenaline belongs to a class of medications called sympathomimetics acting on alpha and beta receptors. Adrenaline is used for treating anaphylactic shock.

How to use it?

Adrenaline is injected through a needle into a vein or muscle as directed by your doctor. Your doctor will advise you on the dosage and frequency depending on your anaphylactic shock.

Anaphylactic shock
Intramuscular injection (1:1000): 500 mcg and repeated every 5 minutes as needed until improvement occurs.
Intravenous injection (1:10000): 0.5 mg at a rate of 100 mcg/min

Intramuscular injection (1:1000): 10 mcg/kg
Intravenous injection (1:10000): 10 mcg/kg

What are the side effects of Adrenaline?

Common side effects of Adrenaline include, but not limited to, tachycardia, arrhythmia, myocardial infarction, anxiety, drowsiness, sweating, nausea and vomiting.

Who should not take Adrenaline?

– People allergic to Adrenaline or any component of the formulation.

Pharmacist Tips:

Common dosing schedule:
The intramuscular injection is repeated every 5 minutes and the intravenous injection is given at a slow rate until a response is attained.

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

Some common medications Adrenaline may interact with:
– Alpha-1 antagonists, e.g. Doxazosin, Terazosin
– Ergot derivatives, e.g. Ergotamine, Ergometrine
– Sympathomimetics, e.g. Amphetamines, Pseudoephedrine
– Tricyclic antidepressants, e.g. Imipramine, Nortriptyline

Adrenaline may interact with many other medications. Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Adrenaline in Hong Kong?

In Hong Kong, Adrenaline 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 Adrenaline 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.