Epinephrine (Adrenaline) (epinephrine) — Uses, Dosage, Side Effects & Safety

Drug class: Sympathomimetic; Adrenergic agonist; Vasopressor

Overview

Epinephrine (also known as adrenaline) is a life-saving medication used to treat severe allergic reactions (anaphylaxis), cardiac arrest, and certain types of asthma attacks. It works quickly to reverse symptoms such as difficulty breathing, swelling, and low blood pressure by relaxing airway muscles and tightening blood vessels. Epinephrine acts on the body’s adrenergic receptors, leading to increased heart rate, improved breathing, and reduced swelling. It is most commonly administered as an injection, often via an auto-injector (like EpiPen), for emergency use. Key points: Epinephrine should be used immediately at the first sign of a severe allergic reaction. Always seek emergency medical help after use, as further treatment may be needed. Carry your auto-injector at all times if you are at risk for anaphylaxis.

Therapeutic uses

• Anaphylaxis
• Cardiac arrest
• Asthma exacerbations

Common side effects

• Tachycardia
• Palpitations
• Anxiety
• Tremor
• Hypertension
• Headache
• Nausea
• Dizziness

Frequently Asked Questions about Epinephrine (Adrenaline)

What is epinephrine (adrenaline) used for?

Epinephrine is primarily used to treat severe allergic reactions (anaphylaxis), cardiac arrest, and sometimes severe asthma attacks.

How quickly does epinephrine work?

Epinephrine acts within minutes after injection, rapidly reversing symptoms of anaphylaxis.

Can I use epinephrine if I have heart disease?

Epinephrine should be used with caution in patients with heart disease, but it is still recommended in life-threatening emergencies.

What should I do after using an epinephrine auto-injector?

Always seek emergency medical attention after using epinephrine, even if symptoms improve.

How should I store my epinephrine auto-injector?

Store at room temperature, away from light and heat. Do not refrigerate or freeze. Check expiration dates regularly.

Can children use epinephrine auto-injectors?

Yes, there are pediatric doses (0.15 mg) available for children. Always follow your doctor’s instructions.

What are the signs of an epinephrine overdose?

Symptoms include severe headache, chest pain, irregular heartbeat, high blood pressure, and confusion. Seek emergency help immediately.

Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.