Praziquantel 600mg tablets
Requires a prescription from a doctor or prescriber
Praziquantel is a pyrazino-isoquinolein derivative from the thioxantonic group used as a broad anthelmintic spectrum.
Safety information for pregnancy and breastfeeding
Pregnancy
Published studies have not identified an association between praziquantel use during pregnancy and major birth defects, miscarriage, or adverse maternal or fetal outcomes.
Mutagenicity studies of praziquantel published in the scientific literature are inconclusive.
Always consult your doctor or midwife before taking any medicine during pregnancy or while breastfeeding. Source: DrugBank (CC BY-NC 4.0).
Official documents, adverse reaction reporting, and safety monitoring
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Official medicine documents
Safety monitoring data
Yellow Card reports
The MHRA Yellow Card scheme collects reports of suspected side effects from healthcare professionals and patients. View the Drug Analysis Profile (iDAP) for real-world adverse reaction data.
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Suspected adverse reactions reported for Praziquantel
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Interactive Drug Analysis Profiles for all medicines
Report a side effect
Submit a Yellow Card report to the MHRA
Data from the MHRA Yellow Card scheme. A reported reaction does not necessarily mean the medicine caused it. Contains public sector information licensed under the Open Government Licence v3.0.
EudraVigilance
The European Medicines Agency (EMA) collects suspected adverse reaction reports from across the EU/EEA through the EudraVigilance system. Search for safety data on this medicine.
View EudraVigilance report
Suspected adverse reactions reported for Praziquantel
About EudraVigilance
Learn about EU pharmacovigilance and safety monitoring
EudraVigilance data is published by the European Medicines Agency (EMA). A suspected adverse reaction is not necessarily caused by the medicine.
2 branded products available
WHO defined daily dose (DDD)
3 gram
Not a recommended dose. The DDD is the assumed average maintenance dose per day for a drug used for its main indication in adults. It is a statistical measure used for research and comparison purposes only.
Source: WHO Collaborating Centre for Drug Statistics Methodology, distributed via the NHS dm+d supplementary BNF/ATC mapping files (NHSBSA). Contains public sector information licensed under the Open Government Licence v3.0.
Therapeutically similar medicines
Similarity is based on WHO Anatomical Therapeutic Chemical (ATC) classification and on a factual NHS dm+d therapeutic-grouping code prefix. Source data: NHS dm+d via TRUD (OGL v3.0), WHO ATC/DDD Index.
NHS prescribing volume and spending trends
Check stock at pharmacies and supply information
Pharmacy stock checkers
Search for this medicine at major UK pharmacy chains. These links open the retailer's own website — results depend on their current online catalogue.
Supply & safety information
Official UK regulator monitoring and safety alerts
Pharmacy links redirect to the retailer's own search and do not represent real-time stock levels. Shortage and safety information sourced from MHRA drug safety updates (gov.uk, Crown Copyright under OGL v3.0).
Codes for healthcare professionals and prescribing systems
These codes are used by healthcare IT systems and prescribers to identify this medicine.
NHS UK identifiers
Browse tools
SNOMED CT and dm+d codes from NHS TRUD (Technology Reference data Update Distribution), licensed under the Open Government Licence v3.0. BNF code shown is the factual mapping value distributed by NHS Business Services Authority (NHSBSA) in the dm+d supplementary file under OGL v3.0; it is not affiliated with, nor licensed from, the publishers of the British National Formulary. ATC codes from the WHO Collaborating Centre for Drug Statistics Methodology (whocc.no).
Active and completed clinical studies from ClinicalTrials.gov
Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine (NLM), National Institutes of Health (NIH). Data accessed via ClinicalTrials.gov API v2. Trial information is provided for research purposes and does not constitute medical advice.
Academic studies and reviews for this medicine's active substance
Showing the 50 most relevant studies.
Reviews & meta-analyses: 27 · Randomised trials: 17 · 1999–2026
Showing the 50 most relevant studies, sorted by most relevant.
J. Zwang, P. Olliaro
PLoS Neglected Tropical Diseases, 2014
Muhubiri Kabuyaya, M. Chimbari, S. Mukaratirwa
Infectious Diseases of Poverty, 2018
N. Vale, M. Gouveia, G. Rinaldi, et al.
Antimicrobial Agents and Chemotherapy, 2017
J. Zwang, P. Olliaro
Parasites & Vectors, 2017
M. Fukushige, M. Chase-Topping, M. Woolhouse, et al.
PLoS Neglected Tropical Diseases, 2021
R. Bergquist, J. Utzinger, J. Keiser
Infectious Diseases of Poverty, 2017
Hector H. Garcia, I. Gonzales, Andres G. Lescano, et al.
The Lancet. Infectious diseases, 2014
Resende Gondim Jasmineiro Pitanga J, Marmori Cruccioli M, Carneiro PHT, et al.
2026
Dumevi CY, Kyei GB, Tetteh-Quarcoo PB, et al.
2025
Background: Schistosomiasis is a neglected tropical disease with high endemicity across Africa. As a waterborne parasitic disease, the population at highest risk includes school-age children, although adults are also affected. The rationale for this review is to assess the effectiveness of the various schistosomiasis control interventions implemented across Africa. Methods: A targeted systematic search for studies published from January 2000 to August 2023 in African Journals Online, ScienceDirect, PubMed, World Health Organization Database, Cochrane Library and Web of Science databases was conducted. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was followed in the screening of the studies conducted from 2000 to 2023. Results: A total of 165 articles (out of an initial number of 9791) that met the inclusion criteria were reviewed in this study under the broad subthemes: pharmacological and nonpharmacological interventions. Praziquantel is the most widely implemented control measure for both preventive and curative purposes across the 35 countries surveyed in this study. Praziquantel either was the sole control strategy (18/35; 51.4%) or was used in conjunction with one or more other interventions (5/35; 14.3%). Studies conducted in 14 countries did not specify the type of schistosomiasis interventions used. Research on schistosomiasis in Africa and its control measures is primarily funded and supported by the WHO and other international research initiatives (49.1%), national governments (17.6%) and private researchers (33.3%). Ineffective coordination at the local, national, regional or continental levels; inconsistent and donor-driven mass drug administration and lack of an effective approach that integrates pharmacological and nonpharmacological control strategies are major bottlenecks hindering the elimination of schistosomiasis across Africa. Conclusion: There is a paucity of data on a systematic approach by the national governments of Africa that effectively integrates pharmacological and nonpharmacological control strategies to meet the 2030 elimination roadmap targets.
Abstract licence: CC BY
Hamdan F, Lamberton PHL, Trippler L
2026
- Praziquantel
- Anthelmintics
- Food-Drug Interactions
BackgroundPraziquantel is the drug of choice for parasitic diseases such as opisthorchiasis, schistosomiasis, and taeniasis. The U.S. Food and Drug Administration and World Health Organization (WHO) advise administering praziquantel with food to increase absorption and decrease side effects. However, there is a scarcity of evidence on the impact of food, and different types of food, on treatment outcomes. This review aims to address this knowledge gap by (i) examining how pre-treatment food intake is reported in humans, and characterising the types of food provided, if any, and (ii) assessing whether the presence and/or type of food impacts four key treatment outcomes in humans: absorption, metabolism, treatment-associated side effects, and drug efficacy.MethodsWe will search the following databases: Embase (via Ovid), MEDLINE (via PubMed), Web of Science Core Collection, Cochrane Central Register of Controlled Trials (CENTRAL), and African Index Medicus (via Global Index Medicus), and trial registries including clinicaltrials.gov and the WHO International Clinical Trials Registry Platform (ICTRP). Additionally, we will perform citation and grey literature searching and will contact researchers to obtain information on ongoing and unpublished relevant research. The search strategy is constructed using two core concepts: (i) praziquantel, and (ii) the outcomes of interest (pharmacokinetics, treatment-associated side effects, and drug efficacy). In Covidence, two review authors will independently screen the retrieved studies based on pre-defined inclusion/exclusion criteria and extract data using a standardised form. Risk of bias will be assessed using the Risk of Bias 2 (RoB 2) tool for randomised controlled trials and the Risk of Bias In Non-randomised Studies of Interventions (ROBINS-I) tool for non-randomised studies. Data will be synthesised narratively, and random-effects meta-analyses will be conducted to estimate the effect of food on the outcomes of interest, where appropriate. The certainty of evidence will be assessed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) framework.DiscussionThis review has the potential to enhance treatment outcomes for individuals and communities living in endemic regions for schistosomiasis and other parasitic diseases treated with praziquantel. Our findings will be of direct relevance for WHO guidelines and, therefore, can help improve the design and impact of future targeted treatment and mass drug administration (MDA) programmes.Systematic review registrationPROSPERO CRD420251024296.
Abstract licence: CC BY
Sources: aggregated from Europe PMC (EMBL-EBI), OpenAlex, Crossref, PubMed and other open scholarly databases. Retracted articles are excluded. Study information is provided for research purposes and does not constitute medical advice.
Pharmacology and chemical data from DrugBank
Key facts
Drug status
Approved
Major interactions
None known
Half-life
0.8 to 1.5 hours
Mechanism
Although the exact mechanism of action is unknown, praziquantel was hypothesized…
Food interactions
2 warnings
Human targets
1 target
Data: DrugBank · CC BY-NC 4.0
Pharmacokinetics at a glance
Absorption
80%
Half-life
0.8 to 1.5 hours
[L50021]
Protein binding
80%
[A263176]
Volume of distribution
40 mg/k
[A263181]…
Metabolism
[L50021]
Elimination
80%
[L50021]…
Clearance
40 mg/k
[A263181]
Pharmacokinetic data: DrugBank · CC BY-NC 4.0
[L50021]
Known interactions with other medications. Always consult a healthcare professional.
Showing 50 of 627 interactions
[L40268]
Published studies have not identified an association between praziquantel use during pregnancy and major birth defects, miscarriage, or adverse maternal or fetal outcomes. In animal reproduction studies conducted in pregnant rats and rabbits no adverse developmental outcomes were observed with oral administration of praziquantel during organogenesis at approximately 0.65 times (rats) or 1.3 times (rabbits) the highest recommended human daily dose of 75 mg/kg/day, based on body surface area.
[L50021]
Mutagenicity studies of praziquantel published in the scientific literature are inconclusive. Long-term oral carcinogenicity studies in rats and golden hamsters did not reveal any carcinogenic effect at doses up to 250 mg/kg/day (about half of the human daily dose based on body surface area).
Praziquantel had no effect on fertility and general reproductive performance of male and female rats when given at oral doses ranging from 30 to 300 mg/kg body weight (up to 0.65 times the human daily dose based on body surface area).
[L50021]
Increased exposure of antigens on the worm surface was also observed, but little research has been done to elucidate on the mechanism of action.[A1664]
Secondary effects are inhibition of glucose uptake, lowering of glycogen levels and stimulation of lactate release. The action of praziquantel is specific to trematodes and cestodes; nematodes (including filariae) are not affected.[L40268]
Praziquantel is active against schistosoma (for example, Schistosoma mekongi, Schistosoma japonicum, Schistosoma mansoni and Schistosoma hematobium), and infections due to the liver flukes, Clonorchis sinensis/Opisthorchis viverrini. Published in vitro data have shown a potential lack of efficacy of praziquantel against migrating schistosomulae.[L50021]
An interesting quirk of praziquantel is that it is relatively ineffective against juvenile schistosomes. While initially effective, effectiveness against schistosomes decreases until it reaches a minimum at 3-4 weeks. Effectiveness then increases again until it is once again fully effective at 6-7 weeks.[A1664]
How the body processes this drug — absorption, distribution, metabolism, and elimination
[L50021]
[L50021]
[A263176]
[A263181]
[L50021]
[L50021]
[A263181]
Proteins and enzymes this drug interacts with in the body
Enzymes involved in drug metabolism — important for understanding drug interactions
Proteins that carry this drug through the body
PMID:19021548
Major calcium and magnesium transporter in plasma, binds approximately 45% of circulating calcium and magnesium in plasma (By similarity).
Potentially has more than two calcium-binding sites and might additionally bind calcium in a non-specific manner (By similarity). The shared binding site between zinc and calcium at residue Asp-273 suggests a crosstalk between zinc and calcium transport in the blood (By similarity). The rank order of affinity is zinc > calcium > magnesium (By similarity).
Binds to the bacterial siderophore enterobactin and inhibits enterobactin-mediated iron uptake of E.coli from ferric transferrin, and may thereby limit the utilization of iron and growth of enteric bacteria such as E.coli .
PMID:6234017
Does not prevent iron uptake by the bacterial siderophore aerobactin PMID:6234017
ATC P02BA01
Chemical identifiers
CAS, UNII, InChI Key and database cross-references
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Chemical identifiers
CAS, UNII, InChI Key and database cross-references
Linked compound data from DrugBank Open Data (CC BY-NC 4.0)
Praziquantel
Additional database identifiers
Drugs Product Database (DPD)
2092
ChemSpider
4722
BindingDB
74574
HUGO Gene Nomenclature Committee (HGNC)
HGNC:17890
GeneCards
HPGDS
GenBank Gene Database
D82073
GenBank Protein Database
3046817
Guide to Pharmacology
1381
UniProt Accession
HPGDS_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2596
GenAtlas
CYP1A2
GeneCards
CYP1A2
GenBank Gene Database
Z00036
Guide to Pharmacology
1319
UniProt Accession
CP1A2_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2621
GeneCards
CYP2C19
GenBank Gene Database
M61854
GenBank Protein Database
181344
Guide to Pharmacology
1328
UniProt Accession
CP2CJ_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2637
GenAtlas
CYP3A4
GeneCards
CYP3A4
GenBank Gene Database
M18907
Guide to Pharmacology
1337
UniProt Accession
CP3A4_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:2638
GenAtlas
CYP3A5
GeneCards
CYP3A5
GenBank Gene Database
J04813
GenBank Protein Database
181346
Guide to Pharmacology
1338
UniProt Accession
CP3A5_HUMAN
HUGO Gene Nomenclature Committee (HGNC)
HGNC:399
GenAtlas
ALB
GeneCards
ALB
GenBank Gene Database
V00494
GenBank Protein Database
28590
UniProt Accession
ALBU_HUMAN
DrugBank citations
If you use DrugBank data in your research, please cite the following publications:
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Structured knowledge from the free knowledge base
ATC classifications (Wikidata)
Linked open data from Wikidata (Q424145), a free and open knowledge base operated by the Wikimedia Foundation. Data is available under the Creative Commons CC0 1.0 Public Domain Dedication. WHO INN from the World Health Organization.