English to Spanish Medical Medical: Pharmaceuticals Drug formulary

Hola a todos:
Estoy traduciendo un formulario de medicamentos. Solo es una lista y no tengo mucho contexto.

Encontré esto en Internet para Pharmaceutical Aids

Pharmaceutical aids are the drugs or substances which have no or little pharmacological effect but they are essentially used in the preparation of pharmaceutical dosage forms" (like tablets, injections, emulsions, ointments.)
Alguna sugerencia?
Muchas gracias!