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.
Medicine choices. Medicines used to relieve the symptoms of spinal stenosis include: 1  Acetaminophen, which may relieve pain but doesn't reduce inflammation. 2  Nonsteroidal anti-inflammatory drugs (NSAIDs), such as naproxen and ibuprofen.3  Opiate pain relievers, to relieve severe pain that does not respond to other medicines. 4  Epidural steroid injections (ESIs) . Nonsteroidal anti-inflammatory drugs (NSAIDs), such as naproxen and ibuprofen. 2  They may relieve pain and reduce inflammation. 3  Opiate pain relievers, to relieve severe pain that does not respond to other medicines. 4  Opiates are usually used only for short periods of time, to help avoid side effects.