Drug interactions
Conivaptan + Praziquantel
Severity: Moderate
Conivaptan and Praziquantel: moderate interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Conivaptan is a CYP3A4 inhibitor that may raise praziquantel concentrations. Increased exposure could intensify dizziness, somnolence and gastrointestinal effects. Conivaptan is given only short-term in hospital, which limits overlap.
What this interaction means in plain words
Conivaptan and Praziquantel can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Conivaptan inhibits CYP3A4, reducing the metabolic clearance of praziquantel.
What to do
Monitor for praziquantel adverse effects such as dizziness and sedation. Defer elective praziquantel treatment until conivaptan is stopped if feasible.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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Other interactions of Praziquantel
- Enzalutamide + Praziquantel Contraindicated
- Praziquantel + Rifampin Contraindicated
- Amobarbital + Praziquantel Major
- Apalutamide + Praziquantel Major
- Butabarbital + Praziquantel Major
- Butalbital + Praziquantel Major
Frequently asked questions
Can I take Conivaptan with Praziquantel?
MediHelp rates the interaction as moderate. Conivaptan and Praziquantel can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. Conivaptan is a CYP3A4 inhibitor that may raise praziquantel concentrations. Increased exposure could intensify dizziness, somnolence and gastrointestinal effects. Conivaptan is given only short-term in hospital, which limits overlap.
How serious is the interaction between Conivaptan and Praziquantel?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for praziquantel adverse effects such as dizziness and sedation. Defer elective praziquantel treatment until conivaptan is stopped if feasible.
What other medicines interact with Praziquantel?
MediHelp also lists interactions of Praziquantel with, for example, Enzalutamide, Rifampin, Amobarbital. The full list is on the Praziquantel page.
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