Forsythia comes from the fruit of the *Forsythia suspensa* shrub, a plant used in Chinese herbalism. The dried fruit is brewed as a tea or decoction. Concentrated liquid and powder extracts are also common. Many people take it at the first hint of a cold or respiratory discomfort. This herb is often paired with honeysuckle.
Anyone allergic to plants in the olive family should avoid forsythia. If you are pregnant or nursing, talk to a healthcare provider before using it.