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A medicine is any substance that is designed to prevent or treat diseases and a drug is designed to produce a specific reaction inside the body. While there is considerable overlap between the two types of substances, these differences are also quite important. Most of the medicines that are also drugs are considered "controlled substances." This means that there are laws governing their use and that using them in ways contrary to those laws can lead to criminal charges. Antidepressants like Lexapro are drugs, in that they are designed to help alleviate the physical symptoms of depression. However, they are also used in the treatment of the chemical imbalance that leads to depression, so Lexapro is also a medicine. Cocaine, on the other hand, is a drug designed to create a specific mental reaction that leads to a "high" for the user. However, the medical establishment does not recognize any medical benefits for cocaine at this ti...

Pharmacology Mnemonics   RTI: drugs to treat viral respiratory infections  "You'd geta  respiratory infection  if you shoot an  ARO  (arrow) laced with  viruses  into the  lungs ": ARO : A mantadine R imantadine O seltamivir Medication administration: short checklist   TRAMP : · Before dispensing medication, ensure have correct: T ime R oute A mount M edication P atient Opiates: overdose findings  "Cool to the touch, unresponsiveto pain, Hunger diminished, and scars over vein. Pupils pinpointed, and blood pressure low, Urine diminished, and breathing is slow." Cocaine: cardiovascular effect   CO caine causes bloodvessels to CO nstrict (unlike other local anesthetics which cause vasodilation). Aminoglycosides: common characteristics   AMINO : A ctive  A gainst  A erobic gram negative M echanism of resistance are  Mo difying enzymes I nhibit protein synthesis by binding to ...

Introduction to Infrared Spectroscopy Chapter 16 Instrumental Analysis Definition of Infrared Spectroscopy w The absorption of light, as it passes through a medium, varies linearly with the distance the light travels and with concentration of the absorbing medium.  Where a is the absorbance, the Greek lower-case letter epsilon is a characteristic constant for each material at a given wavelength (known as the extinction coefficient or absorption coefficient), c is concentration, and l is the length of the light path, the absorption of light may be expressed by the simple equation a= epsilon times c times l. Infrared Spectroscopy w   Infrared spectroscopy is the measurement of the wavelength and intensity of the absorption of mid-infrared light by a sample. Mid-infrared is energetic enough to excite molecular vibrations to higher energy levels. w   The wavelength of infrared absorption bands is characteristic of specific ty...