Manufactured proprietarily by the Boiron Group, Oscillococcinum (also referred to as Oscillo) is a non prescription homeopathic remedy for the flu.

Highly popular outside of the U.S., it is best taken immediately at the onset of the flu and is thought to relieve symptoms such as fever, chills, body aches and pains.

It is usually sold in packages of 3 or 6 tubes, each tube containing a single dose. A dose is made of up small, sweet tasting granules that should be placed under the tongue to dissolve.

It contains the active ingredient anas barbariae hepatis et cordis extractum 200CK and the manufacturer states that it will not cause prescription drug interactions.