Cox 1mg Injection is used in the treatment of nutritional deficiencies. It provides essential nutrients. It helps in recovering from the conditions which are caused due to deficient levels of Vitamin B12 in the body. Cox 1mg Injection is generally administered by a doctor or a nurse and should not be self-administered. Get the injections for as long as the doctor has prescribed. Complete the full course and do not stop using the medicine suddenly until the doctor says it is okay to stop. Common side effects of this medicine include allergy, flushing, anaphylactic reaction, dark-colored urine, and skin redness. If you experienced any of this that do no resolve on their own or get worse, speak with your doctor. Before you get this injection, let your doctor know if you have any preexisting medical conditions. Let your doctor also know about all the other medicines you are taking. In patients with kidney diseases, dose adjustment may be required. Discussed with your doctor. Do not consume alcohol while on treatment with this medicine.