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Oscillococcinum leading to angioedema, a rare adverse event
  1. Yusra Azmi,
  2. Mana Rao,
  3. Isha Verma,
  4. Abhinav Agrawal
  1. Department of Internal Medicine, Monmouth Medical Center, Long Branch, New Jersey, USA
  1. Correspondence to Dr Mana Rao, manarao{at}


Oscillococcinum is an alternative medicine prepared by serial dilution of wild duck heart and liver extracts. This preparation has been labelled as a ‘non drowsy, homoeopathic medicine’ that ‘reduces the duration and severity of flu and flu-like symptoms’. Clinical evidence exists to support this claim and the product has not previously been reported to cause any serious adverse drug reactions. We bring to light, however, a case of angioedema in our patient who was using oscillococcinum for flu-like symptoms. Consumers must therefore exercise caution at the outset of allergy symptoms.

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