Piper methysticum (Kava Kava) has which primary actions?

• A. Anxiolytic
• B. Sedative
• C. Muscle relaxant
• D. Antispasmodic

Answer: (A)

An anxiolytic effect is the primary action of Piper methysticum. Kava kava is best known for calming nerves and reducing anxiety and tension, often described as producing a sense of relaxation without heavy cognitive impairment at typical doses. This anxiolytic effect is linked to kavalactones that modulate neural activity in limbic and GABA-related pathways, helping to quiet excessive neural firing associated with worry and stress. At higher doses, it can produce sedation and, to a lesser extent, muscle relaxation, but these are dose-dependent secondary properties rather than the main therapeutic outcome. So, while it may have sedative and muscle-relaxant effects, the primary and most characteristic action in clinical use is anxiolysis.