Please assess the completion status of the following clinical trial:

Trial Title: Prevention of Narcotic-Induced Nausea

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: DOUBLE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~1. Patient in Christian Care Emergency Department~2. Require intravenous narcotics for painful condition~3. ≥18 years of age~4. Able to visually rate amount of pain and nausea~Exclusion Criteria:~1. Hypersensitivity to promethazine or opioids~2. Patient requesting anti-emetic at enrollment~3. Narcotic administration in last 6 hours~4. Pregnancy or currently breast-feeding~5. Known seizure disorder~6. Medical Instability

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: None
- Healthy Volunteers: t

Study Arms:
- 1 (Type: PLACEBO_COMPARATOR): Patients will then be randomized to receive placebo, consisting of 10ml of normal saline solution to be administered intravenously with the narcotic
- 2 (Type: ACTIVE_COMPARATOR): Patients will be randomized to 6.25mg of promethazine, consisting of 0.25ml of promethazine diluted in 9.75ml of normal saline.

Based on this trial design, predict the completion outcome and termination type (if applicable).