Oscillococcinum (duck liver-heart)
Anas barbariae

Also known as Anas Barbariae. A widely used homeopathic preparation for the early stages of influenza. Best taken at the first sign of flu — fatigue, fever, body aches, and chills — to reduce severity and shorten recovery.
Key indications
- First sign of flu: fatigue, fever, body aches, chills
- Early influenza-like illness, especially in winter
- General flu symptoms without clear localizing features
Onset of cold or flu, winter damp, physical exertion
Rest, warmth, fluids
One dose of 200C at the very first sign of flu; repeat every 6 hours for the first day if needed. Use within the first 24–48 hours for best effect.
General guidance only. 200ck may be substituted for 200C potencies. Stop the remedy upon significant improvement. If no improvement after 2-3 doses in acute cases or after 4-6 weeks in chronic cases, try a different remedy. Consult a experienced practitioner if you feel you need additional help for serious or persistent symptoms.