1. Linalool (Linalol), a natural compound of the essential oils, has been shown to have antinociceptive, antimicrobial, and anti-inflammatory properties. 2. Linalool was protected against LPS/GalN-induced liver injury through induction of antioxidant defense via Nrf2 activating and reduction inflammatory response via NF-κB inhibition. 3. Linalool biosynthesis and accumulation might be involved in plant defense against bacterial and fungal pathogens and be associated with field resistance to citrus canker. 4. Linalool significantly increased the expression of antioxidant enzymes regulated by Nrf-2 and diminished lung tissue levels of several pro-inflammatory cytokines, including tumor necrosis factor α (TNF-α) and interleukin (IL)-6.

D-Cycloserine (RO-1-9213) is a broad spectrum antibiotic used as a second line agent for treatment of drug resistant tuberculosis, always in combination with other antituberculosis agents.

Piracetam (UCB-6215), a cyclic derivative of the neurotransmitter gamma-aminobutyric acid (GABA), is used in therapy of the extensive cognitive disorders.

Decanoic Acid (Caprynic acid) acts as a non-competitive AMPA receptor antagonist.

(-)-Aspartic acid (L-Homoproline) is an endogenous amino acid existing in invertebrates and vertebrates. It can regulate testosterone synthesis and is an agonist of NMDA receptor.

Memantine hydrochloride (Memantine HCl) is an AMANTADINE derivative that has some dopaminergic effects. Memantine hydrochloride has been proposed as an antiparkinson agent.

Quinolinic acid (QUIN) is an endogenous N-methyl-D-aspartate (NMDA) receptor agonist synthesized from L-tryptophan via the kynurenine pathway.

Omberacetam (Noopept) is a synthetic dipeptide that has been shown to produce positive nootropic and cognitive effects in animal models by a mechanism similar to other related racetam compounds.