Lantana

Yes, lantana (Lantana camara) is toxic to cats. It contains triterpenoids that can cause vomiting, diarrhea, lethargy, weakness, and in cases of large or repeated ingestion, potential liver damage.

The most common signs are vomiting and diarrhea, usually accompanied by lethargy and weakness. Labored breathing has also been reported. Liver injury is rare and generally requires either a large single ingestion or repeated exposure over time.

Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian as soon as possible. Do not induce vomiting unless a veterinarian explicitly instructs you to do so.

Onset timing and dose thresholds are not well documented for cats. A single small nibble is less concerning than large or repeated ingestion — the ASPCA notes that liver failure is typically linked to long-term or high-volume exposure rather than one episode. If your cat has been browsing lantana repeatedly, mention that history when you call your vet or ASPCA Animal Poison Control (888-426-4435).

Yes, lantana (Lantana camara) is considered highly toxic to dogs. It contains triterpenoids that can cause gastrointestinal and liver damage, and any suspected ingestion warrants immediate veterinary attention.

The most common signs are vomiting, diarrhea, loss of appetite, lethargy, and weakness. Labored breathing has also been reported. With large or repeated ingestions, liver injury can develop, which may appear as yellowing of the gums or eyes (jaundice).

Call ASPCA Animal Poison Control at (888) 426-4435 or your veterinarian immediately. Do not induce vomiting unless a veterinarian specifically instructs you to — prompt professional guidance is the priority.

A single small ingestion usually causes GI signs only; liver failure is uncommon but is linked to large or repeated ingestions. If your dog has been getting into lantana more than once, treat it as urgent and call your vet right away, since cumulative exposure is when serious liver injury becomes a real risk.