The nuclear membrane, sometimes referred to as the nuclear envelope, is the membrane that encloses the nucleus. This bilayer membrane is made of lipids, and encases the genetic material in eukaryotic cells. The nuclear membrane is made up of a double lipid bilayer. There are two parts to these two layers: the inner and the outer nuclear membrane. There is a space between the membranes, which is called the perinuclear space. This 20-40 nm wide section of the membrane isconnected with the inside of the endoplasmic reticulum.
DRUG CLASS AND MECHANISM: Propoxyphene is a narcotic pain-reliever and cough suppressant but is weaker than morphine, codeine, and hydrocodone. The precise mechanism of action is not known but may involve stimulation of opioid (narcotic) receptors in the brain.
Pseudoephedrine (/ËsjuËdoÊ.É¨ËfÉdrÉªn/ or /ËsjuËdoÊËÉfÉ¨driËn/ ; PSE) is a sympathomimetic drug of the phenethylamine and amphetamine chemical classes.he IUPAC names of the two enantiomers are (1 S ,2 S)- respectively (1 R ,2 R)-2-methylamino-1-phenylpropan-1-ol. Synonyms for both are psi-ephedrine and threo-ephedrine. Pseudoephedrine is the International Nonproprietary Name of the (+)-form, when used as pharmaceutical substance.