Herbal medicines approved by the Department of Health (DOH) include Sambong (Blumea balsamifera), Akapulko (Cassia alata), Niyog-niyogan (Quisqualis indica), Tsaang-gubat (Carmona retusa), Ulasimang bato (Peperomia pellucida), and Bayabas (Psidium guajava).