1. Oral administration is the process of delivering drugs by mouth through the alimentary tract, which can be done in either liquid or solid form sublingually or buccally. 2. The nurse must check for allergies, follow the rights of medication administration, and check for any issues before or after food. Proper preparation, administration technique, and monitoring of the patient is required. 3. Precautions include contamination prevention, following instructions specific to each drug, and ensuring the patient swallows and the medication effects are evaluated.