Along with its needing effects, a drug may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your family doctor immediately if any of the following side effects was happen
More common
Difficulty in breathing and swallowing; hives; itching, especially of feet or hands; reddening of skin, especially around ears; swelling of eyes, face, or inside of nose; unusual tiredness or weakness, sudden and severe
Approximately 7 to 14 days after you stop receiving brown snake antivenin, you may develop symptoms of serum sickness. The severity of the symptoms and the length of time the sickness lasts depends on the amount of brown snake antivenin you received and how long you received it. Check with your family doctor if you notice any of the following side effects:
Fever; redness of joints; skin rash and itching; swollen glands
More common side effects not listed above may also occur in some diseaseds. If you notice any other problems, check with your family doctor.