Substance
Almost any form of substance may be amenable to sublingual administration if it dissolves easily in saliva. Powders and aerosols may all take advantage of this method. However, a number of factors, such as pH, molecular weight, and lipid solubility, may determine whether the route is practical. Based on these properties, a suitably soluble drug may diffuse too slowly through the mucosa to be effective. However, many drugs are much more potent taken sublingually, and it is generally a safer alternative than administration via the nasal mucosa. Due to the high cost of pharmaceuticals, some people opt to split their pills and take them sublingually in order to obtain the same therapeutic effects of oral administration while utilizing half the dose. This method is also extensively used by people attempting to abuse certain psychoactive drugs. One drawback, however, is tooth discoloration and decay caused by long-term use of this method with acidic or otherwise caustic drugs and fillers.
Read more about this topic: Sublingual
Famous quotes containing the word substance:
“All the old supports going, gone, this man reaches out a hand to steady himself on a ledge of rough brick that is warm in the sun: his hand feeds him messages of solidity, but his mind messages of destruction, for this breathing substance, made of earth, will be a dance of atoms, he knows it, his intelligence tells him so: there will soon be war, he is in the middle of war, where he stands will be a waste, mounds of rubble, and this solid earthy substance will be a film of dust on ruins.”
—Doris Lessing (b. 1919)
“True, I talk of dreams,
Which are the children of an idle brain,
Begot of nothing but vain fantasy,
Which is as thin of substance as the air,
And more inconstant than the wind, who woos
Even now the frozen bosom of the north,
And being angered, puffs away from thence,
Turning his side to the dew-dropping south.”
—William Shakespeare (1564–1616)