What distinguishes an elixir from other liquid medication forms?

An elixir is distinguished by being a clear liquid medication that is sweetened and contains alcohol. The presence of alcohol not only acts as a solvent to help dissolve certain medicinal compounds that may not be water-soluble but also has preservative properties. The sweetness often improves palatability, making it easier for patients to take the medication.

The other options don't accurately define elixirs. Elixirs are not made solely of plant extracts; they can contain synthetic medications as well. Additionally, elixirs typically have flavoring agents to enhance taste, contrasting with the option that states they contain no flavoring. Finally, elixirs do not have a gel-like consistency; rather, they are fluid, allowing for easy administration.