Proper Dosages Of Melatonin For Dogs
- Dogs weighing under 10 pounds: 1 mg
- Dogs weighing between 10 to 25 lbs: 1.5 mg
- Dogs weighing between 26 to 100 lbs: 3 mg
- Dogs weighing over 100 lbs: 3 to 6 mg
The medication shouldnt be given more than three times a day. Your veterinarian may have different recommendations about dosages of melatonin. Its best to consult your vet first.
Before using melatonin, a natural supplement or medication for your dog, you should always discuss it with your veterinarian. Although melatonin is safe, your vet is the best judge of how it should be used for your dog. Hormones and natural supplements can curb anxiety and stress. By using behavior modification techniques along with melatonin, new behaviors can be learned. Stressful and anxious habits can be changed into positive behavior.
When Should You Give Your Dog Melatonin
If youre going to use melatonin to help your dog relax before bed or feel less anxiety before a procedure, administer the appropriate dose approximately two hours before bedtime or veterinary appointment. This time frame allows for the melatonin to be absorbed into your dogs body for maximum effectiveness by the desired time.
If you’re ready for more sign up to receive our email newsletter!
Uses Of Melatonin For Dogs
Melatonin for dogs generally works as a sedative by supplementing the naturally occurring neurohormone produced by the pineal glands. Its often used to calm dogs who suffer from different types of anxiety, such as separation anxiety or noise anxiety caused by fireworks, thunderstorms, etc.
Melatonin may possibly reduce any kind of phobias or panic, and some dogs have been entirely cured of their fear of loud noises with use of this supplement. However, it may not cure every dog in every situation.
Supplements can also be used to treat dogs who are hyperactive or those who have epilepsy, and there is some evidence that it may treat certain types of alopecia.
Some pet parents give melatonin to dogs to help them sleep at night, especially older dogs who might have disrupted sleep patterns. Canine Cognitive Dysfunction is a condition in dogs thats similar to Alzheimers in humans, and it makes it difficult to sleep.
Melatonin helps reduce restlessness and aids sleep, and its effects usually last for about eight hours.
If your dog suffers from any of these conditions, you must seek your vets guidance before trying melatonin.
You May Like: High Estrogen Birth Control Side Effects
Melatonin For Dogs Dosage: How Much To Give A Dog
You should always consult your veterinarian before using melatonin and follow the melatonin dosing regimen he or she provides, but the AKCs website recommends the following dosages:
Dogs less than 10 pounds: 1 milligram
Dogs between 10 and 25 pounds: 1.5 milligrams
Dogs between 25 and 100 pounds: 3 milligrams
Dogs weighing more than 100 pounds: 3 to 6 milligrams
Keep in mind that youll want to be extremely careful when administering melatonin to small dogs, as small differences in the amount of melatonin given can be much more serious than it would be with larger dogs.
Also remember that melatonin should never be given to a pregnant animal or lactating females, nor puppies under 12 weeks of age.
Recommended Melatonin Dosage For Dogs

What kind of melatonin should you use for your dog, how much should you give them, and how should you administer the supplement?
Once again, you will need to talk to your vet about these questions. As far as choosing a brand, youll want to find one that isnt cut with a number of other active ingredients and always avoid supplements that include xylitol. For the most part, melatonin supplements have a shortlist of ingredients that are safe for dogs to consume but you should still talk to your vet about the brand youve got before you use it.
Determining the proper dosage will depend on your dogs weight.
A general rule of thumb is that a dog that weighs less than 10 pounds should take 1 milligram. Dogs that weigh 10 to 25 pounds can have 1.5 milligrams. Dogs that are between 26 and 100 pounds can have up to 3 milligrams and dogs over 100 pounds may be able to have up to 6 milligrams.
However, the weight alone cannot determine your dogs dosage. Other factors such as preexisting conditions must be taken into consideration. No matter the size of the dosage, you should never give your dog melatonin more than 3 times a day.
It tends to take about 15 to 20 minutes for melatonin to kick in and the effects will last about 8 hours. If you are using it to help your dog sleep through the night, you can give it to her immediately before bedtime and it will do the trick.
Also Check: Treatment For Low Cortisol Level
Melatonin And Older Dogs
As dogs age, they often develop arthritis, which can be extremely painful and cause them to lose sleep. It is not a good idea to give pain relievers to a dog, as they can be very upsetting to their stomachs. Melatonin is a wonderful alternative, because it is so gentle. This is a more natural way to relieve a dogs pain, without leaving behind the side effects you would see from other medications, such as anti-inflammatory medication. The melatonin will help a dog with arthritis to sleep better, which helps them feel better in the long run.
Can I Give My Dog Melatonin For Hair Loss
To answer this question, lets begin by briefly reviewing the role melatonin plays. In addition to improving sleep-wake cycles, melatonin helps regulate seasonal shedding cycleswhere animals lose their winter coat in the spring and grow a thick coat in the winter.4
The mechanism by which melatonin is involved in regulating hair growth is not fully understood. However, it is believed that melatonin either works by directly stimulating the hair follicle or by stimulating other hormones within the brain that would affect fur growth.3,4
We know that melatonin levels increase with exposure to darkness. It makes sense, then, that we can see seasonal changes in systems that are affected by melatoninsuch as the skin and furwhen the days get shorter and longer.
In dogs, melatonin may be helpful in managing two conditions that cause hair loss: seasonal flank alopecia and alopecia X. In both cases, the condition is considered cosmeticthe dog either has a thinner fur coat than normal or the dog has lost fur entirely. Dogs with these conditions are typically not itchy.
However, there are other diseases where hair loss can occur such as hypothyroidism in dogs and Cushings disease in dogs. These conditions should both be ruled out prior to relying on melatonin as a primary treatment.2
Recommended Reading: Is Taking 10mg Of Melatonin Safe
Melatonin Worked Wonders For My Pomeranian Patient
Finally, since I like to talk about dogs and not just conditions, lets meet a 4-year-old neutered Pomeranian named Elvis. Despite having a doting owner who adored him, Elvis looked like hed been rescued from a grooming incident that had gone awry. He had a mane of rust-colored fur around his neck, but his body was bald. Patches of his skin had turned to a blackish leather and his tail looked like that of an opossum with mange.
We did a full work up with labs to try to get to the bottom of what was causing Elviss hair loss. All of his bloodwork results pointed away from the normal dog endocrine diseases which can cause hair losslikeCushings disease in dogs and hypothyroidismand toward a diagnosis of alopecia X.
How Does Melatonin Work For Dogs
To better understand how melatonin works, it is important to find out the natural process of how melatonin is synthesized and how it works.
Production of melatonin: Melatonin is synthesized in three major sites of the body
- Pineal gland A glandular nervous tissue that protrudes in the region of the brain called mid-brain behind a very important structure of the brain called superior colliculi.
- Retina The retina, a layer of tissue located behind the inside part of the eye next to the optic nerve, also produce melatonin.
- Gastrointestinal tract Studies have shown that the gastrointestinal tract produces more melatonin compared to the pineal gland. The amount produced is estimated to be about 500 times more than the amount produced by the pineal gland.
The principal source of melatonin is dietary tryptophan, one of the essential amino acids required by the body. Tryptophan is also a precursor for the synthesis of serotonin.
Synthesis and regulation
Naturally, the synthesis and release of melatonin are regulated by the amount of light entering the eye. This means that, during the day or in the presence of light, you can detect little to no levels of melatonin in blood.
However, when the eyes are closed such as at night when trying to sleep, melatonin reaches peak production levels. This literally explains the relationship between melatonin and sleep regulation.
Effects on reproduction
Other physiologic functions
Other medications used to treat anxiety in dogs
Amitriptyline
Read Also: What Is Melatonin Side Effects
Melatonin Products For Dogs
There is no shortage of over-the-counter melatonin products on the market, and there are even versions marketed specifically for dogs. But some are clearly better than others.
Our top pick for most owners will be these 3 milligram K9 Choice Melatonin tablets, which are priced affordably and receive positive endorsements from most owners. If you have a really small dog, youll probably want to opt for the 1 milligram tablets instead.
If your dog doesnt take pills readily, you may want to go with a liquid product. Wed suggest the Ironpowers Super Concentrate.
As always, make sure youre shopping for dog-safe supplements that do not contain artificial sweeteners or any other potentially harmful additives.
Melatonin And Seizure Disorders
Using melatonin as an additional therapy for seizures has received mixed reviews. There is some evidence that in dogs who had a high number of nighttime seizures, melatonin helped reduce the number of seizures.3
Some studies in humans have shown melatonin lowers the seizure threshold, meaning seizures happen less frequently. However some other studies in humans have shown melatonin to increase the risk of seizures.5,6
Studies in dogs showed no significant difference in levels of melatonin in dogs with or without seizure disorders.
Therefore, it is important to talk with your veterinarian or veterinary neurologist if your dog has seizures and youd like to learn more about melatonin for this condition.
Don’t Miss: How To Fix Your Hormones
Drug Interactions And Risk Factors Of Melatonin For Dogs
“Is melatonin safe for dogs?”
If your dog is currently on any medications or is undergoing any treatment for a known illness, you must consult your vet before beginning any kind of supplementation. Melatonin shouldn’t be given to pregnant dogs or puppies as to avoid any potential risks.
There’s a chance that melatonin can interact with other medicines, so if your dog is being treated with other medication, be sure to check with your vet if it is safe to use in combination. For example, a research specifies that melatonin contributes to insulin resistance in dogs with diabetes, which can have dangerous implications for your pup’s health.
Supplements aren’t always regulated in all countries, so it’s crucial to check ingredient labels before giving your dog melatonin. Many brands of melatonin supplements for humans contain xylitol, a sugar substitute, which is toxic to dogs and can cause some serious health problems if given to your dog. If you’re unsure of which brand to use, check with your vet, who will be able to recommend one that is safe for your dog.
How Does Melatonin Affect Dogs

Melatonin seems to have a calming effect on dogs, like it does on humans. In a study of healthy dogs getting ready for a surgery, those that were given melatonin before the procedure were more calm and required less initial anesthesia Trusted SourceNational Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.pubmed.ncbi.nlm.nih.gov.
In addition to calming effects, melatonin has been shown to be beneficial in other ways for canines. In another study of dogs, those who were administered melatonin experienced less initial anesthesia Trusted SourceNational Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.pubmed.ncbi.nlm.nih.gov compared to those that did not take melatonin. In a separate study, dogs that were given melatonin after castration were better able to regulate hormones Trusted SourceNational Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.pubmed.ncbi.nlm.nih.gov that are usually out of balance after castration.
Recommended Reading: Signs Of High Cortisol At Night
What Is Melatonin Used For
Melatonin is effective for a variety of health issues. The primary reasons for using melatonin are:
- Sundowner Syndrome
- Weight gain after surgery
People understand the implications of eating disorders. However, eating disorders like anorexia can have severe effects on dogs. When a dog stops eating, problems with the heart and lungs, shortness of breath, and jaundice may occur. However, when a dog starts eating something different like your cats food, it likely isnt anything to be concerned about.
Melatonin can be helpful for dogs who suffer from different types of anxiety. Dogs that are home alone a lot when their owners are at work often suffer from separation anxiety. Your dog can experience less stress due to loud noises such as thunderstorms with melatonin, and it can potentially help calm your dog during fireworks. Many veterinarians use a holistic approach to canine medicine and anxiety issues. When a dog has a reaction to their owner leaving, gets overly enthusiastic upon their return, or suffers from stress when they hear loud noises, melatonin may help.
Signs that a dog may be experiencing cognitive dysfunction include:
- Changes in the waking-sleeping cycle
- Accidents in the house
- Interactions with family and other pets changes
- Activity level decreases
- Moments of disorientation happen more frequently
Canine cognitive dysfunction is sometimes referred to as Sundowners Syndrome. The condition is a process thats progressive in aging pets.
Your Dog Has Insomnia
Who knew that people werent the only ones who could suffer from insomnia? Insomnia is the inability to fall asleep, stay asleep, or sleep soundly. Too many nights of disrupted or unrestful sleep can lead to other issues throughout the day, such as an increase in anxiety or feelings of lethargy.
Dogs who suffer from insomnia often have cognitive dysfunctions that disrupt their natural biorhythms. This can lead to unusual sleeping schedules or limited sleep overall. In this case, owners may use melatonin to help their dogs sleep through the night and feel more alert and active during the day.
Also Check: How To Boost Your Testosterone
Can A Dog Overdose On Melatonin What To Look For What To Do
It is possible for a dog to overdose on melatonin, which is why its vital to get a vet to work out the correct dosage.
A small overdose is unlikely to cause anything more than a slight stomach ache and sleepiness, but a larger overdose could be very serious.
Make sure that you dont leave the medication where your dog can reach it, that you write down the time you gave your dog their tablet so you dont forget and give them a double dose, and that you communicate with any other humans in the household so you dont accidentally both give your pup the medication, not realizing the other has also done so.
However, if these measures fail or something else goes wrong and your dog gets too much, you should know what to do.
The following symptoms may indicate a significant overdose of melatonin:
- High blood pressure
If you suspect your dog has had too much melatonin contact your vet immediately or call the ASPCA poison control hotline on 426-4435.
Why Do People Take Melatonin
People who struggle with insomnia often find relief from sleeplessness by taking melatonin. However, its not as though you need to be tossing and turning all night, every night to benefit from taking melatonin. People who have anxiety, or who have work schedules which constantly interrupt sleep, or who are just jetlaggedmay all be able to enjoy more satisfying rest from taking melatonin.
Read Also: What Are Signs Of Low Testosterone
When Should I Administer Melatonin
Melatonin takes approximately 30 minutes to kick in, so youll want to administer it to your dog roughly half-an hour before a thunderstorm or any other stressful event you are looking to help your dog manage.
For sleep assistance, melatonins should be provided in the evening. As a rule of thumb, its best to provide the melatonin alongside a meal or snack, since ingesting it on an empty stomach may result in intestinal distress.
What Are Good Treats For 8
It is essential to be aware of what your 8-week-old puppy needs so that you can prepare the right food, toys, or activities. For example, your new arrival will need to transition from milk and food to solid foods. You will have to introduce them slowly and ensure they get enough nutrients. You should also avoid giving them too many calories as their diet has not yet stabilized.
It is also essential to ensure that your puppys paws are protected. Avoid walking them on hard surfaces or slippery areas as they will be more prone to falling and injuring themselves. A good pair of shoes should do the trick.
If you are a new puppy parent, you will want to ensure they have their bedding so they can settle down at night. Be careful of older dogs that may see your puppies as competition.
You May Like: Can I Take 6mg Of Melatonin