Enter into glucogenic pathway. Example: Glu, Ala, Val, Ser, Thr, Cys, Met, Asn, Gln, Asp, Glu, Arg, His, and Pro.
Aromatic waters are clear, saturated solutions of aromatic substances, which may be volatile oils or volatile solids in water. They are mainly used as the vehicle for oral liquid preparations due to their flavoring properties, for example, peppermint water. Some aromatic waters have preservative action and hence they are used as menstrum to extract crude drugs,…
A mixture is a liquid preparation intended for oral administration, in which the drug is dissolved, suspended or dispersed in a suitable vehicle. In general, several doses are contained in a bottle. A simple mixture contains only soluble ingredients. Advantages of a simple mixture are as follows: However, a simple mixture suffers from the following…
Purely ketogenic Example: Leu, which enters into the metabolic pathway of fat.
The side chain contains extra amino group, which has important basic properties to them. Example: Lys, Arg, and His
R—contains extra COO− group with dissociable behaviour. Example: Asp and Glu
Syrups are prepared by any of the following four general methods, depending upon the physical and chemical characteristics of the ingredients: Solution with the aid of heat: Sugar is added to the purified water and heated until it dissolves. Then, the other required heat-stable components are added to the hot syrup, the mixture is cooled and…
R—amino acid is soluble in water because it contains functional group that forms H2 bond with H2O. Example: Gly, Ser, Thr, Cys, Tyr, Gln, and Asn
R—group in this category is hydrocarbon in nature and thus hydrophobic (water repellent) and lipophilic. Example: Ala, Val, Leu, Ile, Pro, Phe, Trp, and Met
Syrups are concentrated, aqueous preparations of a sugar or sugar substitutes with or without flavoring agents and medicinal substances. Syrups containing flavoring agents but not medicinal substances are called flavored vehicles/syrups, for example, cherry syrup, cocoa syrup. Syrups containing medicinal agents are called medicated syrups, for example, chlorpheniramine maleate syrup. Most syrups contain the following…