Are medicine prescriptions usually written in milligrams (mg) or grams (g)?

Medicine prescriptions can be written in either milligrams (mg) or grams (g), depending on the particular medication and dosage strength prescribed. It is more common for medications to be prescribed in milligrams, as they typically come in tablet or capsule form with standard dosage strengths measured in milligrams. However, some medications, particularly topical creams or ointments, may be prescribed in grams. The choice of units depends on the specific medication and the healthcare provider's preference.