If you’re hoping to introduce Rose-Hip Vital Canine to use alongside an existing supplement or medication, or perhaps to replace one, it’s always best to do so gradually. We recommend using both products for a three-week period, and then assessing how your dog has responded. If you wish, slowly wean them off the original product after three weeks. Rose-Hip Vital Canine is perfectly safe to use alongside other medications, with no known side effects or contraindications.