10 Questions
Which type of pharmaceutical solution contains more than 60% sugar (sucrose)?
Syrups
What is the main solvent in elixirs?
Ethanol
Which type of pharmaceutical solution is prepared by extracting active constituents from crude materials?
Tinctures
For which route of administration are pharmaceutical solutions NOT given?
Intravenous
What is the main advantage of pharmaceutical solutions over solid dosage forms like tablets or capsules?
Faster absorption
What is the main reason for using water as a solvent for pharmaceutical solutions?
Availability, physiological compatibility, and lack of toxicity
Which type of water is used for drugs sensitive to carboxylation by CO2?
Carbon dioxide-free WFI
How is Water for Injection (WFI) obtained?
By sterilizing the distilled water using an autoclave
What approach can be used to improve the solubility of weak electrolytes or non-polar drugs?
Co-solvency
What are the fundamental considerations in the formulation of pharmaceutical solutions?
Solubility and stability
This lecture covers the conversion of drugs into pharmaceutical solutions, including solutions, syrups, and elixirs, which are liquid preparations containing chemical substances dissolved in a solvent or mixture of solvents. It provides an overview of common types of pharmaceutical solutions and their characteristics.
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