SEARCH Articles Figures Tables Antinociception action of Protium kleinii Protium and deuterium Protium compounds Protium exchange Protium heptaphyllum Protium kleinii Protium kleinii anti-inflammatory effect Protium kleinii antinociceptive effect Protium properties Protium-deuterium exchange Protium/deuterium/tritium kinetic isotope Protium/deuterium/tritium kinetic isotope effects