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No medical significance occurs due to the slight difference in dosage between the 75 mg and the 81 mg tablets. The dose required for benefit appears to depend on a person's weight. [106] For those weighing less than 70 kilograms (154 lb), low dose is effective for preventing cardiovascular disease; for patients above this weight, higher doses ...
Clopidogrel, sold under the brand name Plavix among others, is an antiplatelet medication used to reduce the risk of heart disease and stroke in those at high risk. [10] It is also used together with aspirin in heart attacks and following the placement of a coronary artery stent (dual antiplatelet therapy). [10]
[citation needed] A dose of 40 mg of aspirin a day is able to inhibit a large proportion of maximum thromboxane A 2 release provoked acutely, with the prostaglandin I2 synthesis being little affected; however, higher doses of aspirin are required to attain further inhibition. [15]
The maximum dose is used, rather than a lower dose, to reduce the number of test subjects (and, among other things, the cost of testing), to detect an effect that might occur only rarely. This type of analysis is also used in establishing chemical residue tolerances in foods. Maximum tolerated dose studies are also done in clinical trials.
Aspirin (acetylsalicylic acid), an organic compound that does not occur in nature, was first synthesised in 1899.. In 1897, scientists at the drug and dye firm Bayer began investigating acetylated organic compounds as possible new medicines, following the success of acetanilide ten years earlier.
In single-dose scenarios, the patient's body weight and the drug's recommended dose per kilogram are used to determine a safe one-time dose. If multiple doses of treatment are needed in a day, the physician must take into account information regarding the total amount of the drug which is safe to use in one day, and how that should be broken up ...
A virtually safe dose (VSD) may be determined for those carcinogens not assumed to have a threshold. Virtually safe doses are calculated by regulatory agencies to represent the level of exposure to such carcinogenic agents at which an excess of cancers greater than that level accepted by society is not expected.
The first human trials of heparin began in May 1935, and, by 1937, it was clear that Connaught's heparin was safe, easily available, and effective as a blood anticoagulant. Before 1933, heparin was available in small amounts, was extremely expensive and toxic, and, as a consequence, of no medical value.