My 3 Year Old Female Golden Retriever Was At The

My 3 year old female golden retriever was at the vet this morning. She received Primor 600 for a urinary tract infection, Chlorpheniramine 4 mg for a skin disorder, and also her lyme booster, rabies 3 year booster, and distemper 1 year. Since 5:00pm she has been freaking out, as if she is hallucinating and her eyes are extremely dialated. What can we do to calm her down.