Which of the following is a common medication form?

A common medication form refers to the various ways in which drugs can be formulated for administration to patients. Each option listed represents a valid form that medications can take.

Tablets are one of the most widely recognized and used forms of medication, as they are easy to manufacture, store, and prescribe. They can be formulated to release their active ingredient quickly or in a controlled manner over time.

Emulsions are another important medication form, particularly for drugs that are not water-soluble. This form allows for the mixing of oil and water, providing a stable dispersion that can enhance drug absorption and bioavailability.

Gaseous medication forms, such as inhalants or anesthetics, also play an essential role, especially in respiratory therapies and surgical settings. They offer rapid absorption and effects due to their delivery directly into the respiratory system.

Since the question asks for a common medication form and all the options provided denote legitimate forms of medication, the response that includes all options recognizes the diversity in pharmaceutical formulations, thus making them all common in different contexts.