Drugs Dosage Classification QA

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Prescription drugs

Prescription drug dosage is based typically on body weight.[3] Drugs come with a recommended dose in milligrams or micrograms per kilogram of body weight, and that is used in conjunction with the patient's body weight to determine a safe dosage. In single dosage scenarios, the patient's body weight and the drug's recommended dose per kilogram are used to determine a safe one-time dose. In drugs where 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 into intervals for the most effective treatment for the patient.[4] Medication underdosing occurs commonly when physicians write prescriptions for a dosage that is correct for a certain time, but fails to increase the dosage as the patient needs (i.e. weight based dosing in children, or increasing dosages of chemotherapy drugs if a patient’s condition worsens).

The vast numbers of prescribed and recreational drugs fall into certain drug classifications. Drug Classifications: Stimulants (amphetamines, caffeine, nicotine and cocaine) Depressants (opiates and opioids, alcohol, barbiturates, tranquilizers and benzodiazepines)

Pharmacology is the branch of medicine and biology concerned with the study of drug action, where a drug can be broadly defined as any man-made, natural, or endogenous (within the body) molecule which exerts a biochemical and/or physiological effect on the cell, tissue, organ, or organism (sometimes the word pharmacon is used as a term to encompass these endogenous and exogenous bioactive species). More specifically, it is the study of the interactions that occur between a living organism and chemicals that affect normal or abnormal biochemical function. If substances have medicinal properties, they are considered pharmaceuticals.

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