What Should You Know About Muscle Relaxants for Children?

A pediatric muscle relaxant should be used only when a clinician has selected it for the child, because its benefits, dose, and safety depend on the child’s age, symptoms, medical history, and other medicines. These medicines may reduce muscle spasm or tightness, but they do not necessarily treat the reason the muscle became painful or stiff. A prescription should be followed exactly, and an adult should supervise every dose.

Muscle relaxants are a group of medicines with different actions and different age restrictions. A clinician may consider one for a short-term spasm, painful tightening, or a neurological condition causing abnormal muscle tone. The choice depends on the child’s examination and the suspected cause, so an adult’s medicine must never be shared with a child.

Sleepiness, dizziness, reduced alertness, weakness, nausea, or unsteady movement can occur with some muscle relaxants. The medicine may also affect breathing, especially if combined with other medicines or substances that make the child sleepy. A child taking one should not cycle, swim, climb, or take part in activities requiring full coordination until the prescribing clinician says it is appropriate.

Give the medicine at the prescribed strength and schedule. Use the measuring device supplied or recommended by the pharmacist rather than a household spoon. Do not change the dose, crush or split a tablet, or stop a regular medicine suddenly unless the prescriber or pharmacist gives instructions. Check before adding a cough medicine, antihistamine, pain medicine, supplement, or another product that can cause drowsiness.

Keep the medicine in its original container and out of a child’s reach. If a dose is missed, follow the label or contact the pharmacist instead of giving extra medicine. Keep a record of the child’s response, including alertness, walking, breathing, pain, and muscle tightness; this helps the clinician decide whether the treatment should continue.

Seek emergency help if the child is difficult to wake, has slow or troubled breathing, collapses, has a seizure, or develops swelling of the lips, tongue, or throat. Contact a clinician promptly for severe confusion, fainting, repeated vomiting, a new rash, marked weakness, or a significant change in walking or balance.

If a child may have taken more than prescribed or swallowed medicine intended for someone else, contact emergency services or a poison advice service immediately. Do not wait for symptoms and do not make the child vomit. For continuing pain, back muscle spasm, or cramps, arrange a review so the underlying cause and safer supportive options can be considered.

Ask what the medicine is intended to treat, how quickly it may act, which effects are expected, and which effects require a call. Confirm the correct measuring method, what to do after a missed dose, whether the child should avoid particular activities, and whether any current medicine or health condition changes the plan.