Quaaludes were originally prescribed for things like sleeplessness and anxiety, but have since been made illegal because of their addictiveness. Methaqualone is classified as a hypnotic sedative and was originally prescribed to treat anxiety and relax muscles.uaaludes were originally prescribed for things like sleeplessness and anxiety, but have since been made illegal because of their addictiveness. Methaqualone is classified as a hypnotic sedative and was originally prescribed to treat anxiety and relax muscles.
1 Serum levels increase within 3-12 hours from the onset of chest pain, peak at 24-48 hours, and return to baseline over 5-14 days. 2  Troponin levels may not be detectable for six hours after the onset of myocardial cell injury. 3  The most sensitive early marker for myocardial infarction is myoglobin.
CK activity of serum shows its maximal activity after 10-12 hours. To verify the myocardial infarction, blood samples should be taken at the 0th, 6th, 12th and 24th hours of the infarction. Table 2 shows the data of CK activity (IU/l serum) measured in blood samples of patients with myocardial infarction.