The basic principle for coal preparation is to first liberate the coal particles from the gangue (quartz) and then, by applying different water based techniques, separate the coal particles and gangue particles.
Acetaminophen in the Treatment of Acute Low Back Pain. For low back pain, acetaminophen can be effectively used as an analgesic (or pain killer). Doctor-written article on acetaminophen as a pain reliever for lower back pain.
NSAIDs comprise a large class of drugs with many different options. In addition to aspirin, there are currently several types of both non-prescription (over-the-counter) NSAIDs and prescription brands of NSAIDs. The three types of NSAIDs most commonly used to treat many types of back pain and neck pain include: 1  Ibuprofen (e.g. brand names Advil, Motrin, Nuprin). 2  Naproxen (e.g. brand names Aleve, Naprosyn). 3  COX-2 inhibitors (e.g. brand name Celebrex).