Hynidase Injection is used as a preservative in combination with other medicines. It helps the medicine to absorb completely by the cells in the body and increases the potency of the medicine. Generally, Hynidase Injection comes in combination with injectable medicines. It must be administered as per prescription under the supervision of the doctor or a nurse. Let your doctor know if you have any known allergies to this medication. It is a safe medicine and has minimal or no side effects. However, some patients might experience injection site reactions such as redness, swelling, and pain. Lrt you doctor know if they bother you.