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Choose the species
One selection filters the source overview, clinical facts, reports and dose calculator. Literature references are not species-filtered.
Choose one species for its overview and dose calculator, or all species to browse the full evidence.
Source overview
Recorded excerpts for one species. Each dose remains a separate source entry; no regimen is selected.
Choose one species to view its source overview. All-species evidence remains available below.
View full clinical evidence and sources ↓Clinical evidence
Pending clinical review (PROPOSED)Rule-based (RULE_BASED)— applies to the facts and dose entries in this species selection; individual source records retain their own status.
Dose regimens2
This calculator performs arithmetic only on the sourced dosing field shown for each result — it does not verify the field's accuracy, does not select which field to use for a patient, and does not replace a veterinarian's order. Not for clinical use. Confirm every result against the primary source before dispensing.
Choose one species above to view its dose calculator.
Adverse effects12
These are counts of spontaneously reported events, not proven adverse effects, causal relationships, or incidence rates.
Bars compare report counts within each species; they do not show incidence.
More reportsFewer reportsDog
- Discomfort NOS1 reports
- Elevated C-reactive protein1 reports
- Injection site complication NOS1 reports
- Injection site discharge NOS1 reports
- Injection site reaction NOS1 reports
- Injection site reddening1 reports
- Injection site serosanguinous discharge1 reports
- Lack of efficacy - NOS1 reports
- Leukocytosis NOS1 reports
- Platelet disorder NOS1 reports
- Surgical site disorder1 reports
- Thrombocytopenia1 reports
Literature references17
References are linked to this drug. Species applicability is not recorded here, so the species filter does not narrow this list. Imported dates do not retain their original precision; confirm dates in the original citation.
- Remifentanil attenuates LPS-induced hepatic injury by modulating NRF2/HO-1 and necroptosis-related gene expression.
Study summary not available in the imported record. Open the original citation to review the study.
- Effects of opiranserin (Unafra) on mechanical nociceptive thresholds in Beagle dogs: a randomized crossover study.
Study summary not available in the imported record. Open the original citation to review the study.
- Intraoperative analgesic efficacy of the ultrasound-guided subcostal oblique transversus abdominis plane block for the Mercedes incision in dogs undergoing hepatectomy.
Study summary not available in the imported record. Open the original citation to review the study.
- Lidocaine and remifentanil for ventricular tachycardia suppression in a dog: A case report.
Study summary not available in the imported record. Open the original citation to review the study.
- Perioperative analgesic efficacy of quadratus lumborum block versus transversus abdominis plane block in dogs undergoing laparoscopic ovariectomy: a prospective randomized clinical trial.
Study summary not available in the imported record. Open the original citation to review the study.
Sources: PubMed, National Library of Medicine; openFDA, U.S. Food and Drug Administration; Plumb DC. Plumb's Veterinary Drug Handbook. 7th ed. PharmaVet Inc; 2011.