Which of the following formulations can have the consistency of an ointment?

An emulsion is the correct choice because it can have a similar consistency to that of an ointment. Ointments are semi-solid preparations that are greasy and can provide a therapeutic effect when applied to the skin. Emulsions, which consist of a mixture of water and oil, can be formulated to have a viscosity that allows them to take on a semi-solid form. Depending on the proportions of the emulsifying agents and the physical characteristics of the ingredients used, emulsions can achieve that ointment-like texture.

In contrast, a syrup is a concentrated solution of sugar in water, and it does not possess the semi-solid consistency characteristic of ointments. An elixir is a clear, sweetened liquid containing alcohol and does not resemble the thickness or texture of ointments. Lastly, a tablet is a solid dosage form and obviously cannot have the same consistency as an ointment.