Magnesium Sulfate (Respiratory)
Acts as a smooth muscle relaxant in the airways. It is used in the emergency department to prevent intubation in severe asthma.
Dosage by Body Weight
Pediatric dose: 25 mg/kg to 75 mg/kg (max 2g) as a single IV infusion over 20 minutes.
- Body Weight
- 10-20 kg
- Dose
- 250 mg to 1,000 mg
- Frequency
- Single dose (Acute)
- Tracking Notes
- Monitor for loss of deep tendon reflexes and low blood pressure.
| Body Weight | Dose | Frequency | Tracking Notes |
|---|---|---|---|
| 10-20 kg | 250 mg to 1,000 mg | Single dose (Acute) | Monitor for loss of deep tendon reflexes and low blood pressure. |
Formulation
Purpose
Adjunct treatment for severe, life-threatening acute asthma that does not respond to standard therapy.
Generic Name
Magnesium SulfateBranded Drug Names
Magnesium Sulfate (Respiratory) is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:
Scheduled Drug
Yes. This medicine should be supplied or used only according to applicable prescription and regulatory requirements.
Alternatives
Safety Advice
Alcohol
CAUTIONMagnesium Sulfate (Respiratory): Alcohol may worsen palpitations, dizziness, dehydration, or breathing control. Avoid or limit alcohol if symptoms occur.
Pregnancy
SAFE IF PRESCRIBEDMagnesium Sulfate (Respiratory): Use during pregnancy only when prescribed; controlling breathing or pulmonary pressure problems may be essential.
Breast Feeding
SAFE IF PRESCRIBEDMagnesium Sulfate (Respiratory): Use while breastfeeding only as directed; inhaled treatments are often preferred when suitable.
Driving
CAUTIONMagnesium Sulfate (Respiratory): May cause tremor, dizziness, headache, or palpitations. Avoid driving if you feel unwell.
Liver
CAUTIONMagnesium Sulfate (Respiratory): Use with healthcare guidance in significant liver disease or when long-term monitoring is required.
Kidney
CAUTIONMagnesium Sulfate (Respiratory): Use caution in kidney disease, especially if electrolyte changes or blood pressure effects are possible.