Match the potential adverse effect to the correct herb. Headache, fluid retention, increased blood pressure, electrolyte imbalance, weakness, paralysis, and occasionally brain damage. Allergic reaction; gastrointestinal side effect. Headache, nausea, gastrointestinal upset, diarrhea, dizziness, allergic skin reactions, increased bleeding risk. Drowsiness; withdrawal symptoms if abruptly discontinued. A. Valerian B. Ginkgo biloba C. Echinacea D. Licorice