Studies on information behaviour related to companion animal's (pet) health have been carried out in different contexts and there have been attempts to modify and idealize these information behaviours. The purpose of this study is to apply the Pet Health Information Behaviour Intervention model in an empirical context and elaborate the theoretical contribution of the model to information behaviour research in the context of pet care and management. All the variables of the proposed model were quantified and tested through case study research involving 20 participants. Each case consisted of a guardian who participated in the information intervention program with their cat(s) and/or dog(s) in a small animal hospital, with a follow-up interview after 2 weeks. The information prescription helped both the experienced Internet searchers and the less health literate guardians. The pet guardians were particularly appreciative of the advice on evaluating and using online health information. The higher guardian-pet bond, the more the participant used the tips to search online information. The information prescription helped the relationship with the veterinary professional through improved data gathering and perception of the professional-guardian partnership. The model will assist both information professionals and animal health providers to better design and evaluate information interventions that support pet welfare.