What is a solid dosage form made by compression called?

A solid dosage form made by compression is referred to as a tablet. This process involves compressing the active pharmaceutical ingredients along with excipients into a compact and solid form, which is then typically scored or coated depending on its intended use and release characteristics. Tablets are widely utilized in pharmaceuticals due to their convenience, stability, and the ability to tailor them for immediate or controlled release.

Capsules, while also a solid dosage form, are not made by compression but rather consist of a gelatin shell that contains the medication in powder or liquid form. Solutions are liquid dosage forms where the drug is dissolved in a solvent, and caplets are essentially tablets that are coated to resemble capsules, but they too are compressed and do not differ in composition from conventional tablets. Thus, the fundamental defining characteristic of tablets as a solid dosage form created through compression makes this the correct choice for the question.