Prescribed medication orders must contain specific information to effectively communicate treatment regimens to pharmacists. This includes the patient's name, drug name, strength, dose, form, administration route, quantity, prescriber information, and date. PRN orders require additional details like maximum daily dose and signs/symptoms prompting administration. Proper interpretation of prescriptions by pharmacists can prevent medication errors by understanding abbreviations and Latin terms used. Effective communication between all healthcare professionals is critical for safe and accurate patient care.