Final answer:
Drugs that can break apart a blood clot and restore circulation in an artery due to a thrombus are known as thrombolytic agents, such as streptokinase and tissue plasminogen activator.
Step-by-step explanation:
A patient with an occluded coronary artery can be treated with a class of drugs known as thrombolytic agents, which speed up the degradation of the blood clot and restore circulation. Specific examples include streptokinase and tissue plasminogen activator (tPA). These medications catalyze the conversion of plasminogen to plasmin, the major enzyme responsible for breaking down clots. The administration of these agents is particularly time-sensitive, as their effectiveness is greatly increased if given within a short period after the onset of thrombotic challenges.