Drug Interaction:
Use of antithrombotics- because heparin, aspirin, or reteplase may cause bleeding complications,
careful monitoring for bleeding is adviced especially in arterial punctures.
Drug /Lab interactions- administration of reteplase may cause a decrease in plasmogen and
fibronogen during reteplase therapy. If coagulation tests and /or measurements of fibronollytic
activity are performed the results may be unreliable unless specific precautions are taken
to prevent vitro effects,
Contra-Indications:
Active internal bleeding,
history of cerebrovascular accidents,
recent intracranial surgery
Special precautions-
Bleeding- concurrent use of heparin anticoagulation may contribute to bleeding
Injections sites- as fibrin is lysed during reteplase therapy, bleeding from recent puntures sites
may occur, Therefore, thrombolytic therapy required careful attention to all potential bleeding
sites, arterial and venous punctures sites
IM- avoid IM injections and non-essetial handling of the patient during treatment with reteplase
High risk patients - carefully evaluate each patient being considered for therapy with reteplase
and weigh anticipated benefits against the potential risks associted with the therapy.
Should serious bleeding occur ( not controllable ) immediately terminate concomittant
anticoagulant therapy
Cholesterol embolism- cholesterol embolism has been reported rarely in patients treated with
thrombolytic agents. This serious condition which could be lethal is also associated with
invasive vascular procedures eg cardiac catheterization, angiography, vascular surgery
and/or anticoagulant therapy
Arrhythmias- antiarrhythmic therapy for bradycardia and/or ventricular irritability should be
available when reteplase is administered.
Pregnancy- use reteplase only if the potential benefit justifies the potential risk to the fetus.
Lactation- excercise caution when reteplase is administered to a nursing woman.
Children- safety and efficacy of reteplase in children have not been established
Monitoring- because heparin, aspirin, or reteplase may cause bleeding complications,
careful monitoring of bleeding is adviced, espicially in arterial puncture sites.
Dosages/ Overdosage Etc:
Indication-
Acute Myocardial infraction AMI
Dosage-
Reteplase is for IV use admin only.
Reteplase is administered as a 10+ 10 unit bolus injection. Two 10 unit bolus injections are required
for a complete treatment.
Administer each bolus as an IV injection over 2 minutes.
Give the second bolus after initiation of the first bolus injection.
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Pregnancy and lactation:
Pregnancy-
Use reteplase only if the potential benefit justifies the potential risk to the fetus.
Lactation-
Excercise caution when reteplase is administered to a nursing woman.
Children-
Safety and efficacy of reteplase in children have not been established