If a flexible screw is being used to convey the silica sand, it is important to use a screw that matches the silica sand's characteristics and other application requirements. Generally a screw with a round profile will be effective in moving a material with silica sand's features.
USES: Donepezil is used for the treatment of mild, moderate, or severe dementia associated with Alzheimer's disease. increased frequency of urination. stomach ulcers. MORE SERIOUS SIDE EFFECTS: Tacrine (Cognex), another anticholinesterase medication used in the treatment of Alzheimer's disease, is associated with liver toxicity.
Three cholinesterase inhibitors are commonly prescribed: 1  Donepezil (Aricept) is approved to treat all stages of Alzheimer's. 2  Rivastigmine (Exelon) is approved to treat mild to moderate Alzheimer's. 3  Galantamine (Razadyne) is approved to treat mild to moderate Alzheimer' s.