Tamiflu precautions What should I know regarding pregnancy, nursing and administering Tamiflu to children or the elderly?If you are: Pregnant: Only When Necessary: INSUFFICIENT HUMAN DATA AVAILABLE Nursing: Precaution: CDC REC CONTINUING BREASTFEEDING DURING ANTIVIRAL TREATMENT OR PROPHYLAXIS An adult over 60: Giving Tamiflu to a child under 12: Warning: NO SAFETY AND EFFICACY AGE < 2 WEEKS. RISK OF VOMITING, DIARRHEA. Warning: MONITOR FOR ABN. BEHAVIOR. POSSIBLE SEIZURE RISK/ CONFUSION, NAUSEA/VOMITING.