Drug Gene Type Source (R)-alpha-Methylhistamine HRH3 Text_Mining(Agonist) TTD (R)-alpha-Methylhistamine HRH3 Text_Mining(Inhibitor) TTD (R)-alpha-Methylhistamine HRH4 Text_Mining(Agonist) TTD (R)-alpha-Methylhistamine HRH4 Text_Mining(Inhibitor) TTD (R)-alpha-Methylhistamine VDR Potency=79.4328(uM) D4 PubChem