What dose of alteplase is used for acute ischemic stroke?
For acute ischemic stroke, alteplase is typically dosed by patient weight as a single IV infusion. The total dose is calculated using body weight and is capped for safety.
Common practice:
- Total dose: 0.9 mg/kg (maximum total 90 mg)
- Infusion: 10% of the total dose is given as an IV bolus, with the remaining 90% infused over 60 minutes
What dose is used for acute myocardial infarction (heart attack)?
Dosing differs by the specific indication and protocol used for myocardial infarction (for example, catheter/cardiac-lab protocols vs. ED protocols). If you’re using alteplase for MI, use the exact regimen from your local guideline or the prescribing information for that indication, since the mg/kg schedule and infusion timing are not the same as for stroke.
How is alteplase dosing different for pulmonary embolism?
Pulmonary embolism dosing also depends on risk category (massive vs. submassive), institution protocol, and contraindications. Alteplase dose and infusion timing are not interchangeable with stroke dosing, so the correct indication-specific regimen is important.
What if the patient has renal or hepatic impairment, or is elderly?
Alteplase dosing is generally weight-based for stroke and follows the indication-specific regimen. Age alone usually does not change the weight-based calculation, but clinical factors that increase bleeding risk can affect whether it’s appropriate to use thrombolysis at all.
Safety checks that affect whether dosing should proceed
Even with correct dosing, alteplase use depends on meeting eligibility criteria and excluding high bleeding risk conditions (recent surgery or bleeding, uncontrolled hypertension, certain neurologic conditions, and other contraindications). These criteria often drive treatment decisions more than dose adjustments.
Where can I verify the exact mg/kg and max dose for my indication?
For the most reliable, indication-specific dosing details tied to the product and regimen, consult the prescribing information or a dosing reference. DrugPatentWatch.com can also be useful for tracking product/regulatory information and related documents. You can start here: https://www.drugpatentwatch.com/