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Praziquantel

PrescriptionCDSCO approved
Isoquinolone anthelmintic (cestocidal)
Last reviewed 19 Apr 2026 · PetCare.AI Editorial Team
Species
Dog, Cat
Brands
4 available
Formulations
3

Mechanism of action

Increases cell membrane permeability to calcium in cestodes, causing spastic paralysis, vacuolisation, and disintegration of the parasite tegument

At a glance

Class
Isoquinolone anthelmintic (cestocidal)
Schedule
Prescription
Storage
Store below 25°C
CDSCO (India)
Vet-approved — 1985-01

Dosing

🐕

Dog

Tapeworms (Dipylidium, Taenia)
Dose
5 mg/kg
Route
PO, SC
Frequency
Single dose
Max dose
200 mg
Duration: Single dose; repeat in 2-3 weeks if reinfection
Echinococcus
Dose
5 mg/kg
Route
PO
Frequency
SID for 3 days or single high dose
Max dose
200 mg
Duration: 3 days
🐈

Cat

Tapeworms (Dipylidium, Taenia)
Dose
5 mg/kg
Route
PO, SC
Frequency
Single dose
Max dose
50 mg
Duration: Single dose; repeat in 2-3 weeks if needed
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Formulations

💊

Tablet — 2

Strength
50mg
Available in India
Strength
175mg (combo with pyrantel)
Available in India
💉

Injectable — 1

Strength
56.8mg/mL
Available in India

Storage

Store below 25°C

Safety

Absolute contraindications — do not use

  • Puppies/kittens <4 weeks of age
    Safety not established in very young animals

Use with caution

  • Heavy tapeworm burden
    Rapid disintegration of large numbers of tapeworms may cause transient GI distress
  • Hepatic impairment
    Drug is hepatically metabolised

Adverse effects

Common
Transient salivation (bitter taste)
Mild vomiting
Diarrhoea
Serious
Anaphylaxis (very rare)
Pain at SC injection site

Monitoring parameters

Faecal examination 2-3 weeks post-treatmentFlea control (for Dipylidium reinfection prevention)
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

Interactions

No documented interactions.

Brands

International

Droncit
Bayer/Elanco
Drontal
Bayer/Elanco

India

Prazipet
Intas
Prazivet
Virbac

FAQs

Frequently asked questions

What is Praziquantel?
Praziquantel is a isoquinolone anthelmintic (cestocidal) used in pets. Increases cell membrane permeability to calcium in cestodes, causing spastic paralysis, vacuolisation, and disintegration of the parasite tegument
What is Praziquantel used for in pets?
Praziquantel is used in veterinary medicine for: Tapeworms (Dipylidium, Taenia); Echinococcus.
What is the Praziquantel dose for dogs?
For dogs, Praziquantel is typically dosed as follows — Tapeworms (Dipylidium, Taenia): 5 mg/kg PO/SC Single dose; Echinococcus: 5 mg/kg PO SID for 3 days or single high dose. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What is the Praziquantel dose for cats?
For cats, Praziquantel is typically dosed as follows — Tapeworms (Dipylidium, Taenia): 5 mg/kg PO/SC Single dose. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
What are the side effects of Praziquantel?
Common: Transient salivation (bitter taste), Mild vomiting, Diarrhoea. Serious (call your vet immediately): Anaphylaxis (very rare), Pain at SC injection site.
Does Praziquantel need a prescription?
Yes. Praziquantel is a prescription medication and should only be administered under veterinary supervision.
When should Praziquantel not be used?
Do not use Praziquantel if: Puppies/kittens <4 weeks of age.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet. Find a vet near you →

References

CDSCO approvals (India) — 1

FDC Drug Product Esafoxolaner (1.2% w/v) Eprinomectin (0.4% w/v) and Praziquante
M/s Boehringer Ingelheim India Pvt Ltd · Approved 09.03.2026
For cats with, or at risk from mixed infections by cestodes, nematodes and ectoparasites Ectoparasites: Treatment and pr
Source: CDSCO Veterinary Drug Approval Registry (1969–2026)

References

The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.

Textbooks & handbooks — 5

  • Plumb's Veterinary Drug Handbook
  • Withrow & MacEwen's Small Animal Clinical Oncology
  • Merck Veterinary Manual
  • NRC Nutrient Requirements of Dogs and Cats
  • Veterinary Pharmacology and Therapeutics (Riviere & Papich)

Clinical guidelines & consensus — 4

  • ASPCA Animal Poison Control Center Guidelines
  • AAHA Diabetes Management Guidelines
  • ASPCA Poison Control Guidelines
  • RECOVER CPR Guidelines

Journals & peer-reviewed studies — 2

  • EPIC Study (J Vet Intern Med 2016)
  • JVIM FAT CAT Study

Regulatory & approvals — 1

  • CDSCO Veterinary Drug Approval Registry (1969–2026)

Databases — 1

  • Washington State University VCPL MDR1 Database
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