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Melatonin for dogs Dosage chart by weight

Melatonin is a natural remedy and sedative hormonal supplement for dogs mainly used to treat Dogs Anxiety, Hyperactivity and restlessness, noise anxieties, sleeplessness, and many other disorders. Many pet owners around the globe often ask about How much Melatonin for dogs? what is the safe Melatonin for dogs Dosage chart by weight?

In this article, our experts will let your know about all the possible aspects of Melatonin for dogs, and we hope you will find the answers to all of your questions after reading the article. You can use the table of content for smooth navigation.

How Much Melatonin for Dogs?

Melatonin is a sedative hormonal supplement mainly used for dogs anxiety, a safe dose depends on the size, body weight, and overall health conditions. The safe amount of Melatonin for dogs by weight is 1 mg or 1 ml for a 1-10 lbs puppy, 1.5  mg or 1.5 ml for 11-25 lbs, 2-3  mg or 2-3 ml for a 26-100 lbs and 3-6 mg or 3-6 ml for a 100lbs and above. Do not overdose your canine with the medication. Before offering any medicine to you pet please contact your veterinarian for a gentle advice.

Melatonin for dogs dosage Chart by weight:

Dog WeightMelatonin dose in MgMelatonin dose in ml
5-10 lbs1 mg1 ml
11-25 lbs1.5 mg1.5 ml
26-100 lbs2-3 mg3 ml  
100 lbs and above3 to 6 mg3-6ml

Please remember always give any medication with your vet advice only because your vet may better know to prescribe the safe dose for your canine after observing the overall health performance and body weight.

Because canine medicine and supplements, include different doses for different health conditions, are based on the conditions being treated.

Make sure You should not administer the supplement more than three times per day.

What does Melatonin do for Dogs?

Melatonin is a naturally occurring hormone supplement primarily produced and released by the pineal gland mainly at night used to treat a variety of canine conditions. Humans mostly use this medicine to control the sleep-wake cycle and in the treatment of insomnia

Melatonin for dogs usually works as a sedative. The medicine works by increasing and controlling the naturally occurring neurohormone produced by the pineal glands.

Is melatonin safe for Dogs?

Yes, in moderation, and giving a correct dose of Melatonin is safe for dogs. This is true that The FDA disapproves Melatonin for dog use. However, around the world, veterinarians often prescribe the supplement over the counter to treat many canine issues such as Anxiety, Hyperactivity, restlessness, noise anxieties, sleeplessness, and many other disorders.

Like other medications, Melatonin also has rare but some side effects such as increased heart rate, itching, Gastric issues, and Fertility changes.

Please remember first seek professional vet advice before giving the medicine to a pregnant dog or if your dog has on other medication because some medicine reacts differently with other medicine.

Pros and Cons of Melatonin for Dogs:


  • Melatonin is used to calm canines for noise anxiety, separation anxiety, thunderstorms, fireworks anxiety, etc.
  • Helps improve your pet’s mood.
  • Calming down and soothing anxious dogs.
  • It helps to reduce any kind of phobias or panic.
  • It helps to calm frightened and hyper dogs.
  • Regulate a dog’s sleeping pattern.
  • It can be used to treat epilepsy and Alopecia.
  • Helps in Canine Cognitive Dysfunction.
  • Helps reduce restlessness.
  • Melatonin promotes hair growth.
  • Melatonin can be used in the  treatment of Cushing disease.

Side Effects:

The side effects of Melatonin for dogs are more minor and rare. However, they may cause the below-mentioned side effects in your canine.

  • Digestive upset.
  • Female reproductive cycle change.
  • Confusion.
  • Increase heart rate.
  • Itching.
  • Sedation.
  • Fertility changes.

How to give Melatonin to Dogs?

  • Give medicine with your vet’s advice only.
  • You can give the tablets orally or in their favorite food.
  • Avoid giving melatonin to pregnant dogs and puppies under 12 weeks old.
  • Start the medicine in moderation, offer a less amount, observe your canine if they tolerate it well, then gradually increase to the safe dose.
  • If you observe any side effects or changes in the behavior, stop the medication and contact your vet for gentle advice.
  • Melatonin comes in various forms, such as a tablet, liquid, capsule, and powder form. You can give it with or without food.
  • Always Chose Specially formulated melatonin supplements for dogs.
  • Do not give the supplement that contains toxic ingredients for dogs such as xylitol etc.
  • The best time to give the supplement is dogs immediately before bed to provide a whole night of sleep.
  • First, confirm with your vet if you have a permanent dog or if your puppy is on other Medication.
  • Do not exceed the medicine from three times a day.
  • Do not give the medicine if your canine is allergic to the Medication.

Overdose Toxicity:

Overdosing any medication is toxic for both humans and pets and can put you and yours canine in many health issues. Do not overdose your puppy with melatonin.

Below are some of the possible overdosing side effects of melatonin in dogs.

  • Vomiting
  • Diarrhea
  • Seizures
  • Increased Heart Rate
  • Comma
  • Death


Is melatonin safe for dogs? Yes, Giving melatonin in moderation and giving the correct dose by body weight is safe for dogs. The FDA does not approve this natural supplement for dogs.

However, many vets often used the medicine over the counter for many puppy disorders such as anxiety, stress, sleeping disorders, restlessness, hyperactivity, etc.

Melatonin can also help your canine in Canine Cognitive Dysfunction. It promotes hair growth and can be used in the treatment of Cushing’s disease.

Always give the medicine with your vet’s recommendation only there are some rare side effects associated with the supplement. Do not overdose because overdosing on any medication is forbidden for both humans and pets.


How much time it Melatonin to work in Dogs?

Melatonin usually starts working in dogs within 10 to 15 minutes after ingesting. And its effects may last for about 8 to 10 hours.

Can you give a dog too much Melatonin?

No, overdosing on any medicine is toxic and can lead your dog to a severe health issue. Do not give too much Melatonin to your canine. Always follow the safe dose and precaution for any medication.

The best idea to serve any medicine that includes Melatonin is to contact your vet first. Because The FDA disapproves Melatonin for canine use. However, veterinarians usually prescribe the medication over the counter.

too much melatonin for dogs

Can I give my dog 10 mg of melatonin?

No, 10mg of Melatonin is not recommended for every dog. The ideal and safe dose of Melatonin depends on the body weight of the pet. Before offering any medication, first, learn about the safe amount of the medicine for your furry friend.

The ideal and safe dose of Melatonin for canine is below.

  • 1 ml or 1 mg for a 1-10 lbs.
  • 1.5  ml or 1.5 mg for 11-25 lbs.
  • 2-3  ml or 2-3 mg for a 26-100 lbs.
  • 3-6 ml or 3-6 mg for a 100lbs and above.
10 mg of melatonin for dogs

Is 5 mg of melatonin too much for a dog?

Before giving Melatonin to your dog, know about the safe dose of Melatonin for dogs by weight. You can not offer 5 mg of the supplement to the dog without considering their body weight. Can I give my dog 5mg of Melatonin? You can provide 5mg of Melatonin only to a dog weight 100 lbs and above. The safe amount of Melatonin for canine by weight is as follows.

  • 1 mg for 1-10 lbs.
  • 1.5  mg for 11-25 lbs.
  • 2-3  mg for a 26-100 lbs.
  • 3-6 mg 100lbs and above.
5 mg melatonin for dogs

Can Melatonin cause seizures in dogs?

Giving the ideal and safe dose of melatonin is safe for dogs, and you can give it to your canine with your vet’s advice only. However, overdosing on the supplement can cause some side effects such as seizures.

What can I give my dog to sleep at night?

Melatonin supplements have been used in humans to treat sleep disorders. In addition, many veterinarians often prescribe Melatonin for canine diseases such as sleeping disorders, stress, anxiety, restlessness, and fear.

Can I give my dog CBD oil and Melatonin together?

Yes, Melatonin and CBD oil both have many powerful properties that can aid your dogs in many ways. According to pet experts, Melatonin and CBD oil have many similar benefits such as calming, comfort, and peaceful and restful sleep.

However, please remember self-medication may harm your canine. If you plan to use Melatonin and CBD oil, first contact your vet for gentle advice. Your vet will suggest the best after observing your puppy’s overall health condition. 

CBD oil and Melatonin for dogs

Can dogs take Melatonin to calm them down?

Yes, Melatonin is a natural supplement usually prescribed to calm hyper or aggressive dogs, and you can safely give them the correct dosage by body weight. These supplements can aid your canine in many ways.

Its calming effects will help relieve many dog disorders such as fear, thunderstorm anxiety, hyperactivity, sleeping disease and restlessness, epilepsy, and hair loss. 

melatonin for calming dogs

Can Melatonin hurt my Dog?

Yes, the wrong product of Melatonin can hurt your dog. Giving the right product and a safe dose of Melatonin is suitable for dogs.

However, feeding a wrong product containing toxic ingredients such as xylitol or overdosing on the supplement can hurt your canine and lead them to health issues such as increased heart rate, vomiting, diarrhea, and even seizures.

Will Melatonin make a dog sleepy?

Yes, Melatonin has sedative and drowsiness properties that can make your dog sleepy. The best way to use the supplements for your canine is to follow the safety precaution and correct dosage. Always introduce medicine to your puppy with your vet’s advice only.