An H1 histamine receptor antagonist that substantially inhibits HCV replication by suppression of NS4B's RNA binding (IC50=24 nM) with little toxicity for the host cells.

(+)-Camphor is an ingredient in cooking, and as an embalming fluid for medicinal purposes.

RQ-00203078 is a highly selective, potent and orally available TRPM8 antagonist (IC50 values are 5.3 and 8.3 nM for rat and human channels respectively).