<p>Because of the increased likelihood of resistance, due to antistreptokinase antibodies, retreatment with Streptokinase or Streptokinase-containing products may not be effective if administered between five days and twelve months of prior Streptokinase administration or Streptococcal infections, such as Streptococcal pharyngitis, acute rheumatic fever or acute glomerulonephritis secondary to a Streptococcal infection.<br />
<br />
In principle, no thrombolytic treatment should be commenced before the 10th postoperative day. However, in cases of pulmonary embolism, the indication for earlier treatment may be very strong and after careful consideration of all the risks, Streptokinase may be given before the tenth postoperative day. The danger of bleeding from the operative area must, of course, be taken into account.<br />
The danger of haemorrhage is increased by simultaneous or previous treatment with anticoagulants (e.g., Heparin) or substances which inhibit platelet formation or function. If the patient is under active heparinisation, it should be neutralised by the administration of protamine sulphate before the start of thrombolytic therapy.&nbsp;<br />
<br />
<strong>Repeated Administration</strong>: After administration of Streptokinase, the titre of antistreptokinase antibodies begins to rise after approximately one week, reaching a peak at 2 to 3 weeks and remains elevated for 8 to 12 months. Because of the increased likelihood of resistance, Streptokinase may not be effective if given during this period.</p>