Jump to section

What is Lantana Poisoning?

Although lantana originated in Central America, it can now be found in Florida, Georgia, North Carolina, and South Carolina. In these states, reports of lantana poisoning are common in areas where the plant grows wild. Lantana of the Verbenaceae family is a beautiful flowering plant that may be yellow, orange, red, or blue and white. Some lantana produce blue-black berries, which are the most toxic part of the plant. Unfortunately, the mortality rate is high in the more serious cases. If you think your dog may have eaten any part of a lantana plant, see a veterinary medical professional immediately even if you have not noticed any symptoms, as this is a life-threatening emergency.

Lantana poisoning in dogs is common in the southwestern United States in places where it is allowed to grow wild. The toxic property in lantana is a triterpenoid, which is extremely toxic and dangerous to your dog as well as other animals and children, if consumed. Triterpenoid can damage your dog’s hepatic system (gallbladder, bile ducts, and liver). While the entire plant of the lantana is poisonous, the berries are the most toxic. Not all lantana have berries, but those that do are dark blue (almost black) and very small (1/4 inch) that are grouped in small clusters. Some experts believe that the berries are safe if they are completely ripe, but scientists have proven that all berries from the lantana can be fatal.

Lantana Poisoning Average Cost

From 392 quotes ranging from $200 - $800

Average Cost

$400

Symptoms of Lantana Poisoning in Dogs

The initial symptoms of lantana poisoning, weakness and appetite loss, are evident within the first 24 hours of consumption. More serious symptoms will begin to develop over the next several days, such as bloody diarrhea, paralysis, and jaundice (yellowing of the skin and eyes) from damage to the liver. The symptoms of lantana poisoning vary depending on how much your dog ate, what part of the plant was consumed, and what kind of lantana it is. Some of the most commonly reported symptoms are:

  • Bloody diarrhea
  • Death
  • Depression
  • Frequent urination
  • Inability to move (paralysis)
  • Loss of appetite
  • Liver failure (dark urine, weakness, yellowing of the skin and eyes - jaundice)

  • Sensitivity to the sun (photosensitization)
  • Shock
  • Swelling of the abdomen
  • Vomiting

 Types

Lantana (lantana camara) is in the Verbenaceae family in the order of the lamiales. Some of the other common names for lantana are red sage, wild sage, yellow sage, shrub verbena, and viburnum lantana. Lantana can grow to over six feet tall, but they are most commonly about three to four feet on average. There are approximately 150 types of lantana, but the most common in the United States are:

  • Lantana camara
  • Lantana depressa
  • Lantana hirsuta
  • Lantana horrida
  • Lantana splendens
  • Lantana strigocamara
  • Lantana montevidensis
arrow-up-icon

Top

Causes of Lantana Poisoning in Dogs

The cause of lantana poisoning is consuming a toxic amount of lantana. The toxic principles in lantana are:

  • Pentacyclic triterpenoids (Lantadene A, Lantadene B)
  • Pentacyclic triterpene acids (Icterogenin, Dihydrolantadene A, reduced lantadene)
arrow-up-icon

Top

Diagnosis of Lantana Poisoning in Dogs

If you can, bring a portion of the lantana plant with you to the veterinarian so they can determine which type it is because some are more toxic than others. This will help the veterinarian get a definitive diagnosis to decide on a treatment plan. During the physical examination, the veterinarian will check your dog’s reflexes, weight, height, body temperature, breath sounds, blood pressure, respiration and pulse rate. Tell the veterinarian all of the details about the incident, like how much and what part of the plant your dog ate. You should also have your dog’s health history and vaccination records, and if you have noticed any unusual behavior or appetite changes.

Some tests that will be performed are a biochemical profile, complete blood count, urinalysis, blood urea nitrogen (BUN), electrolyte levels, liver enzymes, and glucose levels. The blood tests will show an increase in bilirubin and the hepatic enzymes AST and SDH. Imaging done with x-ray, CT scan, MRI, and ultrasound may also be necessary. To determine if your dog is dehydrated, a packed cell volume (PCV) test should be done as well.

arrow-up-icon

Top

Treatment of Lantana Poisoning in Dogs

An effective treatment usually consists of providing IV fluids and electrolytes, an activated charcoal lavage to absorb the toxins and empty the stomach, and antibiotics in case of infection. There may be supportive treatments required for any complications, such as inflammation of the liver or kidney damage. Hospitalization may be necessary in serious cases.

arrow-up-icon

Top

Recovery of Lantana Poisoning in Dogs

Chances for your dog’s recovery are good if treated quickly. Once your dog is allowed to go home, continue the medication and limit the amount of sunlight due to photosensitivity. Unfortunately, if treatment is not done before liver damage occurs your dog’s chances are poor. Be sure to remove all lantana from your property wherever your dog is allowed to go and call your veterinarian if you have any concerns.

arrow-up-icon

Top

*Wag! may collect a share of sales or other compensation from the links on this page. Items are sold by the retailer, not Wag!.

Lantana Poisoning Average Cost

From 392 quotes ranging from $200 - $800

Average Cost

$400

arrow-up-icon

Top

Lantana Poisoning Questions and Advice from Veterinary Professionals

Need pet health advice? Ask a vet

question-icon-cta

Ask a Vet

dog-name-icon

dog-breed-icon

Poodle mix

dog-age-icon

Ten Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

thumbs-up-icon

1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

Has Symptoms

Liver Problems

We believe our Bichon-poo ate Lantana. She didn’t eat for a week and became very ill by the time we realized she must have eaten Lantana. The vet put her on antibiotics and sub-cut fluids for a week. She acts better but her liver numbers have worsened and I have to hand feed her to get her to eat. The vet has now put her back on an antibiotic since she finished it last week. He also started her on a steroid, plus he’s putting her on liver support, which should be here this week. She acts so much better than when she was at her sickest but her bloodwork is not good. Can she fully recover?

Sept. 6, 2020

Owner

answer-icon

Dr. Kate D. MA VetMB MRCVS

recommendation-ribbon

1 Recommendations

Hello, We have been talking in the live chat about your case, and I just wanted to send you some resources related to recovery from liver toxins and lantana: https://wagwalking.com/condition/lantana-poisoning https://wagwalking.com/condition/liver-toxins https://veterinarypartner.vin.com/default.aspx?pid=19239&id;=9758237 https://vcahospitals.com/know-your-pet/nutrition-for-dogs-with-liver-disease I will continue talking to you in the chat. Thanks.

Sept. 7, 2020

Was this experience helpful?

dog-name-icon

dog-breed-icon

Labrador Retriever

dog-age-icon

1year

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

thumbs-up-icon

1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Unknown severity

Has Symptoms

Poor Appetite Some Diarrhea

Josie has eaten some lantana leaves. She is not exhibiting severe symptoms but is not interest in food and has had some diarrhea. Is there action I should take before we can see the vet.

Aug. 2, 2020

Owner

answer-icon

Dr. Gina U. DVM

recommendation-ribbon

1 Recommendations

Hello Thank you for your questions. Lantana leaves can be toxic to the liver, so her inappetence may be related to that. I recommend that you take her to a veterinarian as soon as possible. There is not really anything that you can do at home. Good luck.

Aug. 2, 2020

Was this experience helpful?

dog-name-icon

M'Lady Love Williams

dog-breed-icon

Chihuahua

dog-age-icon

12 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

thumbs-up-icon

1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

Has Symptoms

None At This Time

My 12 year old Chihuahua was sniffing around the Lantana in my flowerbed just minutes ago. I saw her chewing on a leaf and scolded her, made her stop. I don't think she swallowed any. However after reading this page I'm really worried. Could one leaf cause her to become ill and die...especially since I don't believe she swallowed any?? I'm keeping an eye on her, so far she is acting normal. She came in drank water and is now laying in her bed snoring away. All normal. What exactly should I watch for other than erratic breathing? Diarrhea is often something she deals with, so I need other signs, please. There are no berries on the plant at this time.

Sept. 10, 2018

M'Lady Love Williams' Owner

Was this experience helpful?

dog-name-icon

Little Tex

dog-breed-icon

Labrador Retriever

dog-age-icon

3 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Moderate severity

thumbs-up-icon

5 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Moderate severity

Has Symptoms

Multiple

My 3 year old lab starting having seizures in March, 2018 (age 2.75). He was put on Keppra, 750 mg., bid after his second seizure. Blood work was negative for “poisoning”. We have both Sago Palm and Lantana. He had normal liver function on blood work. He was sent to a neurology Vet who doubled the Keppra dose to 3000 mg. q.d. About 6 wks later, he started vomiting and had bloody diarrhea and would not eat anything. He had an abdominal X-ray which showed acute gastritis. He was hospitalized for two days-got IV Flagyl and Amoxicillin. He almost died but recovered fully. Three Vets said this could be due to toxicity from the high dose Keppra, but the neurologist states it is not even remotely possible. We cut back the Keppra to 750 bid. He has had no other Gi symptoms but continues seizures about every three weeks. The neuro Vet prescribed phenobarbital, but we don’t want to give it due to possible liver damage. Is it possible this could be the lantana? Would poisoning from this show up on blood work? They assured me this would not be poisoning from Sago, but we didn’t discuss Lantana. He loves to eat nut grass around the plants as does our other lab. She has never been sick. I’ll mention that his brother (litter mate) had PRAA at birth-not a really healthy litter. Thank you so much for any advice you can give me. I plan to take him to TAMU for a work-up when we can afford it.

Aug. 13, 2018

Little Tex's Owner

answer-icon

recommendation-ribbon

5 Recommendations

Lantana poisoning may also result in liver failure but is less common (more common with livestock) and is not as toxic as sago palm; small quantities of Lantana may cause gastritis. I cannot say what the cause of the gastrointestinal symptoms were but generally Keppra (levetiracetam) side effects result in lethargy than anything else. Regards Dr Callum Turner DVM www.petpoisonhelpline.com/poison/lantana/ www.vin.com/veterinarypartner/default.aspx?pid=19239&catId;=102894&id;=4952949

Aug. 14, 2018

Was this experience helpful?

dog-name-icon

Sydney

dog-breed-icon

Rottweiler

dog-age-icon

5 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

thumbs-up-icon

3 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

Has Symptoms

Done

Out rottie has been eating lantana for over a year now. No sign of reaction. Was just informed that lantana is poisonous to dogs. What should we do? Should we remove the lantana or leave it there? We have a dozen plants without berries.

Feb. 19, 2018

Sydney's Owner

answer-icon

Dr. Michele K. DVM

recommendation-ribbon

3 Recommendations

Thank you for your email. You are probably quite fortunate that you haven't had any problems with the Lantana plant so far. Lantana can be highly toxic to dogs, even fatal. It would be best to immediately block the plant so that Sydney can't access it.

Feb. 19, 2018

Was this experience helpful?

dog-name-icon

Gracie

dog-breed-icon

Chihuahua

dog-age-icon

10 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

thumbs-up-icon

1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Fair severity

Has Symptoms

My chihuahua goes NUTS over lantana! She really seems to enjoy it... and she is well fed otherwise! It made her throw up a little. But just to be on the safe side, I now keep it out of her reach. But I'm remembering how a cat I once had loved lantana too. And even when he was sick unto death, he wanted lantana - even when he was refusing all other food. Consequently, I'm wondering if lantana has some medicinal quality we're not aware of, something they know instinctively. Especially chihuahuas, for I understand lantana grows wild in Mexico. And chihuahuas supposedly originated in Mexico.

dog-name-icon

Riley

dog-breed-icon

Boxer/Rotti

dog-age-icon

4 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical severity

thumbs-up-icon

1 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical severity

Has Symptoms

Jaundice
Jaundice Weekness
Jaundice Weekness Anemia

My dog Riley was diagnosed as having IMHA. He passed away from this at 4 yrs old. He used to bite off the flowers from Lantana plants constantly on our walks as we passed by. I always wondered if he was poisoned from these plants and if it caused the IMHA disease or if that was a false diagnosis. After reading this page I am even more convinced it may have had something to do with it. Wish I knew then what I know now. I miss my baby tremendously ever day!

dog-name-icon

Red

dog-breed-icon

Rottweiler

dog-age-icon

3 Years

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical severity

thumbs-up-icon

8 found helpful

pill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filledpill-rating-filled

Critical severity

Has Symptoms

Vomiting

I lost my 3 year old Rottweiler in July to DKA, Pancreatitis and liver failure. I had caught him eating the lantana in my backyard so I pulled all 7 plants out. It was a few months later that he became fatally ill and was in the ICU for 4 days. It's been 5 months and every day I wonder what happened to make him so sick so young. I've always wondered if the lantana could have done this?

Lantana Poisoning Average Cost

From 392 quotes ranging from $200 - $800

Average Cost

$400

How can we help your pet?