The recommended starting dose of LIPITOR is 10 or 20 mg once daily. Patients who require a large reduction in LDL-C (more than 45%) may be started at 40 mg once daily.The dosage range of LIPITOR is 10 to 80 mg once daily.LIPITOR can be administered as a single dose at any time of the day, with or without food.The starting dose and maintenance doses of LIPITOR should be individualized according to patient characteristics such as goal of therapy and response (see current NCEP Guidelines).IPITOR can be administered as a single dose at any time of the day, with or without food. The starting dose and maintenance doses of LIPITOR should be individualized according to patient characteristics such as goal of therapy and response (see current NCEP Guidelines).
Cell Membranes. Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike prokaryotes, eukaryotic cells also possess internal membranes that encase their organelles and control the exchange of essential cell components.
A cell membrane is composed of two layers of phospholipids. Each phospholipid molecule has a hydrophilic phosphate head and two hydrophobic lipid tails. The heads line up along the inner and outer surfaces of the cell membrane, while the tails fill the middle space.