Can you be allergic to prednisoneBest Answer: no they all contain a drug called diazinine which can lead to dehydration. . This product may contain inactive ingredients, which can . . Health Issues > Asthma . . . If it is almost time . . PRednisone raises your blood pressure. . taking prednisone, tell your doctor or pharmacist if you are allergic to it; or if you have any other allergies. Allergies can make you miserable, and, for now, they cannot be cured. Information . tell your doctor an... more