Case report: Treatment of cyclobenzaprine ingestion in two dogs with intravenous intralipid therapy

TL;DR

This case report describes how two dogs with cyclobenzaprine poisoning were successfully treated using intralipid emulsion and supportive care.

Contribution

This is the first documented case series showing successful treatment of cyclobenzaprine toxicity in dogs using intralipid emulsion.

Findings

Both dogs showed clinical signs like tremors, tachycardia, and hypertension after cyclobenzaprine ingestion.

Intralipid emulsion, along with decontamination and supportive care, resolved all clinical signs in both dogs.

No significant clinicopathological abnormalities were observed in either dog.

Abstract

The objective of this case series is to describe the clinical signs and outcome of cyclobenzaprine ingestion in two dogs treated with intralipid emulsion (ILE) and supportive care.

Two dogs presented for evaluation of cyclobenzaprine ingestion. A 4-year-old female spayed Rat Terrier (dog 1) presented within 4 h of ingestion of cyclobenzaprine (between 9.7 and 25.9 mg/kg). The dog experienced abnormal behavior, agitation, tremors, tachycardia, and hypertension. There were no significant clinicopathological abnormalities. The dog was treated with ILE, cyproheptadine, and activated charcoal. All clinical signs resolved after treatment. A 5-month-old female intact mixed-breed dog (dog 2) presented after ingestion of an unknown amount of cyclobenzaprine 2–3 h prior to presentation. The dog experienced dull mentation, tremors, loss of gag reflex, tachycardia, and hypertension. There were no significant clinicopathological abnormalities. Orogastric decontamination was performed via gastric lavage, and activated charcoal was given via orogastric tube, followed by ILE. All clinical signs resolved after therapeutic intervention.

This is the first report documenting clinical signs of cyclobenzaprine toxicity in two dogs followed by successful treatment with gastric emptying, ILE, and supportive care.