class ConceptServiceImpl extends BaseOpenmrsService implements ConceptService {

	@Override
	@Transactional(readOnly = true)
	public List<Drug> getDrugsByIngredient(Concept ingredient) throws APIException {
		if (ingredient == null) {
			throw new IllegalArgumentException("ingredient is required");
		}
		
		return dao.getDrugsByIngredient(ingredient);
	}

}