The vertebral column is a collection of individual bones  called vertebrae that encase and protect thâ¦e spinal cord. The  vertebral column is divided into three parts: seven cervical (neck)  vertebrae at the top, twelve thoracic vertebrae in the midback, and  five lumbar vertebrae in the lower back.
Clopidogrel is used to prevent heart attacks and strokes in persons with heart disease (recent heart attack), recent stroke, or blood circulation disease (peripheral vascular disease).
Clopidogrel is a prodrug which is metabolized to its active form by the cytochrome P450 enzyme pathway. A loading dose of clopidogrel (300-600 mg) inhibits platelet function within 2 to 4 hours, while a daily dose of 75 mg becomes effective within 24 hours and has maximum effect within 4 to 7 days.