In patients with acute ST-segment elevation myocardial infarction, the recommended dose of Lovenox is a single IV bolus of 30 mg plus a 1 mg/kg SC dose followed by 1 mg/kg administered SC every 12 hours (maximum 100 mg for the first two doses only, followed by 1 mg/kg dosing for the remaining doses).
Hardware failures inside the engine can also cause rough idle problems and misfires. Anything higher than the crankshaft itself is a likely culprit, but that doesn't mean the bearings or crankshaft itself aren't.
1 If the car idles rough or cuts off at low RPM or idle, the cause could be a failing O2 sensor. The O2 sensor is out of the loop at full throttle and will not affect the way the car runs.  A rough idle can also be caused by a problem with the air flow box.