P. RadomyosD. BunnagT. HarinasutaMahidol University2018-10-122018-10-121984-01-01Arzneimittel-Forschung/Drug Research. Vol.34, No.9 B (1984), 1215-1217000441722-s2.0-0021194375https://repository.li.mahidol.ac.th/handle/20.500.14594/30711A clinical trial of praziquantel ((2-cyclohexylcarbonyl-1,2,3,6,7,11b-hexahydro-4H-pyrazino[2,1-a]isoquinol in-4-one, EMBAY 8440, Biltricide®) in human opisthorchiasis was carried out at the Hospital for Tropical Diseases, Bangkok, from April 1979 to January 1983. After treatment, stools were collected for 3 consecutive days. In the search for worms, a sedimentation method was used and examinations under the stereoscopic microscope were performed. The helminths recovered were stained and identified. Of 411 patients examined, 332 patients had one or more species of helminths in the stools. Some of them had not been observed before in man. Details are given in this paper.Mahidol UniversityPharmacology, Toxicology and PharmaceuticsArticleSCOPUS