Abstract
The infection of Metagonimus yokogawai has been known to be present nationwidely and endemic in some parts in Korea. In order to select a highly effective compound against Metagonimus infections, the therapeutic effects were observed in 156 cases who were treated with several anthelmintic i.e. bithionol, niclosamide, niclofolan and praziquantel. All of the above drugs showed highly effective to the treatment of metagonimiasis by a single or two medication days. The egg reduction rates were in the range of 80.2 to 100 per cent. However, relatively low cure rates(8.3 to 37.5 percent) were observed in the groups treated by two doses of 30 mg/kg of bithionol, a single day treatment with 100 mg/kg of niclosamide and two doses of 1.0 mg/kg of niclofolan. On the other hand, the high cure rates were observed at the following dose rates of each drugs, i.e. the cure rate of 66.7 percent was obtained at two doses of 100 mg/kg of niclosamide, 88.9 percent of cure rate was observed at two doses of 2.0 mg/kg of niclofolan and a single dose of 10 and 20 mg/kg of praziquantel were shown as 85.0 percent and 88.0 percent of cure rates respectively.
But the complete radical cure was obtained in the group treated by two doses of 20 mg/kg of praziquantel in 10 metagonimiasis cases. From the above results praziquantel was shown as the most highly effective against metagonimiasis and it was well tolerated without any side effect. Therefore, praziquantel is a very promising drug for mass treatment against metagonimiasis.
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- Acute Niclofolan Intoxication Led to Stillbirth: A Case Report
Rui Li, Liang Wang, Hai Zhang, Meng He
Drug, Healthcare and Patient Safety.2025; Volume 17: 1. CrossRef - Fishborne zoonotic heterophyid infections: An update
Jong-Yil Chai, Bong-Kwang Jung
Food and Waterborne Parasitology.2017; 8-9: 33. CrossRef - Praziquantel Treatment in Trematode and Cestode Infections: An Update
Jong-Yil Chai
Infection & Chemotherapy.2013; 45(1): 32. CrossRef - Foodborne Intestinal Flukes in Southeast Asia
Jong-Yil Chai, Eun-Hee Shin, Soon-Hyung Lee, Han-Jong Rim
The Korean Journal of Parasitology.2009; 47(Suppl): S69. CrossRef - Chemotherapy for major food-borne trematodes: a review
Jennifer Keiser, Jürg Utzinger
Expert Opinion on Pharmacotherapy.2004; 5(8): 1711. CrossRef - Food-borne intestinal trematode infections in the Republic of Korea
Jong-Yil Chai, Soon-Hyung Lee
Parasitology International.2002; 51(2): 129. CrossRef - Paragonimiasis: a view from Columbia
Iván D Vélez, Jorge E Ortega, Luz E Velásquez
Clinics in Chest Medicine.2002; 23(2): 421. CrossRef - Intestinal trematodes of humans in Korea: Metagonimus, heterophyids and echinostomes
J Y Chai, S H Lee
The Korean Journal of Parasitology.1990; 28(Suppl): s103. CrossRef - Application of PMR Spectrometry in Quantitative Analysis of Praziquantel in Pharmaceutical Preparations
S. Z. El-khateeb, N. A. El Ragehy, F. I. Khattab, A. K. S. Ahmad
Spectroscopy Letters.1990; 23(4): 505. CrossRef - Studies on intestinal trematodes in Korea XVIII. Effects of praziquantel in the treatment of Fibricola seoulensis infection in albino rats
Soon Hyung Lee, Jong Yil Chai, Byoug Seol Seo
The Korean Journal of Parasitology.1985; 23(1): 41. CrossRef - Praziquantel(Distocide) in treatment of Clonorchis sinensis infection
Byong Seol Seo, Soon Hyung Lee, Jong Yil Chai, Sung Tae Hong
The Korean Journal of Parasitology.1983; 21(2): 241. CrossRef - Praziquantel
Peter Andrews, Herbert Thomas, Rolf Pohlke, JÜRgen Seubert
Medicinal Research Reviews.1983; 3(2): 147. CrossRef - The biology and toxicology of molluscicides, bayluscide
P. Andrews, J. Thyssen, D. Lorke
Pharmacology & Therapeutics.1982; 19(2): 245. CrossRef - Therapeutic field trial with praziquantel (Biltricide) in a rural population infected with Clonorchis sinensis
Han Jong Rim, Young Man Lee, Joon Sang Lee, Kyoung Hwan Joo
The Korean Journal of Parasitology.1982; 20(1): 1. CrossRef - Clinical evaluation of praziquantel(Embay 8440; Biltricide) in the treatment of Paragonimus westermani
Han Jong Rim, Yoo Shin Chang, Joon Sang Lee, Kyoung Hwan Joo, Won Hyuk Suh, Moriyasu Tsuji
The Korean Journal of Parasitology.1981; 19(1): 27. CrossRef - Clinical evaluation of the therapeutic efficacy of praziquantel (Embay 8440) againstClonorchis sinensisinfection in man
Han-Jong Rim, Kwang-Sa Lyu, Joon-Sang Lee, Kyoung-Hwan Joo
Annals of Tropical Medicine & Parasitology.1981; 75(1): 27. CrossRef - Experimental study on the therapeutic effect of praziquente1(Embay 8440) in rats experimentally infected with Clonorchis sinensis
Han Jong Rim, Joung Hwan Ha, Soo Jin Kim
The Korean Journal of Parasitology.1980; 18(1): 65. CrossRef