Succinylcholine (Succinylcholine chloride) — Uses, Dosage, Side Effects & Safety
Drug class: Neuromuscular blocking agent (depolarizing muscle relaxant)
Overview
Succinylcholine is a medication used to relax muscles during surgery or other medical procedures. It is most commonly given to help with intubation (placing a breathing tube) or to keep muscles still during operations. Succinylcholine works by blocking the signals between nerves and muscles, causing temporary paralysis. This effect is very short-acting, usually lasting only a few minutes. Key points for patients: Succinylcholine is always administered by a trained healthcare professional in a hospital or surgical setting. You will be closely monitored while receiving this medication. It is not used for pain relief or sedation, so other medicines may be given alongside it.
Therapeutic uses
- Rapid tracheal intubation
- Skeletal muscle relaxation during surgery
- Electroconvulsive therapy (ECT) to prevent muscle injury
- Control of muscle spasms in tetanus or status epilepticus
Common side effects
- Bradycardia
- Muscle pain
- Hyperkalemia
- Malignant hyperthermia
- Apnea
- Anaphylaxis
- Increased intraocular pressure
Frequently Asked Questions about Succinylcholine
What is succinylcholine used for?
Succinylcholine is used to relax muscles during surgery, intubation, or other procedures that require temporary paralysis.
How long does succinylcholine last?
The effects of succinylcholine are very short-acting, typically lasting 4–6 minutes after a single intravenous dose.
Is succinylcholine safe for everyone?
No, succinylcholine is not safe for people with certain muscle disorders, a history of malignant hyperthermia, or those at risk for high potassium. It should only be used under close medical supervision.
Can succinylcholine be reversed?
There is no direct antidote for succinylcholine. Its effects wear off quickly as the drug is broken down in the body. Supportive care is provided if prolonged paralysis occurs.
What are the signs of a serious reaction to succinylcholine?
Serious reactions include muscle rigidity, high fever, difficulty breathing, irregular heartbeat, and signs of an allergic reaction. These require immediate medical attention.
Can succinylcholine be used in children?
Yes, but with caution. Dosing is different for children and is always determined by a healthcare professional. Certain children, especially those with undiagnosed muscle disorders, are at higher risk for complications.
What should I tell my doctor before receiving succinylcholine?
Tell your doctor about any personal or family history of muscle disorders, malignant hyperthermia, recent injuries, burns, or if you are taking any medications that may interact with succinylcholine.
Educational information only. Always consult a qualified healthcare professional before starting, stopping, or changing any medication.