Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Can Dogs Have Melatonin? Info & Side Effects

dog medicine

Melatonin is a hormone that naturally occurs in the body and is thought to help regulate sleep patterns. Melatonin supplements can help humans get a better night’s sleep, and they have also been shown to treat issues like separation anxiety and stress in dogs. Melatonin has sedative properties, so it can help your dog get a good night’s sleep, too. So, yes, melatonin can be a safe supplement to administer to dogs. Here is what you should know about the supplement and how to use it when giving it to your canine companion.

divider dog faces oct 2024

Reasons to Give Melatonin to Your Dog

Separation and noise anxiety are two extremely common reasons that veterinarians recommend melatonin supplements for dogs. According to the American Kennel Club,1 melatonin supplementation can also be utilized for problems such as cognitive dysfunctions, blindness, and even seasonal alopecia. Some dogs benefit from occasional use, like during a holiday when fireworks are set off. Other dogs benefit from daily use to help with cognitive problems or sleep disruptions.

Side Effects of Melatonin Supplementation in Dogs

Fortunately, there are no serious side effects to worry about when administering melatonin supplements to your dog. Any that do occur are rare and typically short-lived. The most common side effect is drowsiness, which should be expected. Melatonin might interact with other medications your dog is taking, so always check with your vet before giving it to your dog.

Some dogs may also develop an upset stomach, a bit of confusion, or an increased heart rate after taking melatonin—all of which are temporary. However, it is important to note that melatonin supplements have not been approved by the FDA for use in animals, and research is limited when it comes to the effects of melatonin in dogs. Still, most veterinarians consider the supplement to be a safe treatment option for most canines.

owner giving medicine tablet to his sick dog
Image By: Creative Cat Studio, Shutterstock

Melatonin Dosage for Dogs

Melatonin comes in various forms and dosages. There are pills, gummies, and liquid supplements available that are designed just for dogs. You’ll need to figure out what form your dog likes and then determine their dosage based on the reason for the treatment.

Most dogs do well with between 1 and 6 milligrams of melatonin every 24 hours, but it’s best not to guess. Your veterinarian can recommend a dosage based on your dog’s history, health, and the reasons for treatment in the first place. They can also recommend a schedule to follow at home.

Too much melatonin can lead to problems like itchiness, diarrhea, high blood pressure, and even seizures. Therefore, follow your vet’s recommended dosage and administration schedule. Melatonin supplements come in over-the-counter and prescription versions. Your vet may prescribe a product or allow you to choose a commercial one.

Before giving any new medication to your dog, we recommend you consult a veterinarian for the best advice on which would be the best treatment for your pup.

Did you know you can talk to a vet online? Click on the image or button below to schedule a call: PangoVet_Mention-in-Content Savings V1


divider dog faces oct 2024

Final Thoughts

Dogs can benefit from melatonin supplementation in various ways. The type and amount of melatonin that any dog receives should be based on their actual need, not a “guesstimate,” so it’s important to work with your veterinarian before you administer any supplements to your dog.


Featured Image Credit: LightField Studios, Shutterstock

How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.

Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

How to Potty Train a Basset Hound: 8 Vet-Approved Tips

With their long ears and mournful expressions, Basset Hound puppies are quite irresistible. If you’re preparing to welcome one of these sweet, playful...

8 Best Ear Wipes for Dogs in 2025: Reviews & Top Picks

Pet parents know how easy it is for your dog’s ears to get caked up with all kinds of dirt and debris. That’s...

Why Your Dog Is Chewing Everything & How to Stop It

One of the most frustrating things for any dog owner is when you’re your dog won’t stop chewing on everything. It’s not uncommon...

9 Best Dog Water Bottles in 2025 – Reviews & Top Picks

You wouldn’t head out for a hike without ensuring you have enough snacks and water to get you through. The same rule applies...

More related

Mauzer (Miniature Schnauzer Maltese Mix) – Info, Pictures, Care & More

The Mauzer is a designer dog breed that is a combination of a Miniature Schnauzer and a Maltese. These dogs are known for...

How to Groom a Toy Poodle: 10 Vet-Reviewed Tips & Tricks

When you adopt or buy a Toy Poodle, you know that grooming will be a must! If it is a task you want...

How Penny Turned Me Into a Dog Lover

Hi, I’m Savanna! Read my introduction to learn more about me and my spunky Chihuahua mix, Penny. Cat person vs. dog person is...

My Dog Ate Plastic: Should I Be Worried? (Vet Answer)

You’ve just gotten home and found trash strewn throughout your living room. The kitchen trash can is on its side, and your pooch...

Keep reading

Can Dogs Eat Raw Salmon? Vet-Verified Nutrition Facts & Advice

Salmon is packed full of healthy nutrients and is considered by some to be one of the healthiest protein sources since it provides essential vitamins and is a great source of omega-3 fatty acids. But what about raw salmon? Is...

Can Dogs Eat_salmon

Can Dogs Eat Water Chestnuts? Vet-Verified Facts

It can be hard to tell which foods are good for your dog and which are dangerous. Before feeding your dog any new food, it is best to consult your vet to ensure that you are making a good decision...

Can Dogs Eat_water chestnuts

Can Dogs Eat Liverwurst? Vet-Verified Nutrition Facts & Risks

Liverwurst is a type of sausage made primarily of liver, spices, and other ingredients. If that sounds like something your dog might enjoy, you’re not wrong, but can dogs eat liverwurst? Liverwurst often contains toxic ingredients, so you’ll need to...

Can Dogs Eat_liverwurst

Bone Meal in Dog Food: Is It Healthy for Your Dog?

If you’ve ever spent any time reading the ingredients list on dog food labels, then you might have noticed one particular ingredient cropping up occasionally: bone meal. So what is bone meal, and is it good for dogs? The short...

belgian malinois food bowl eating patient

KOHA Dog Food Review 2025: Pros, Cons & Recalls

Review Summary KOHA Pet Food manufactures premium food for dogs with allergies and food sensitivities. Several things set KOHA apart from most premium dog food brands. First, KOHA doesn’t sell dog food through retail stores like PetSmart or online retailers...

Dogster_KOHA Dog Food Review

Can Dogs Eat Pop-Tarts? Vet-Verified Risks & Alternatives

If your dog is like most, they are not discerning when it comes to what they eat. They may not go after those pieces of lettuce that you accidentally drop on the kitchen floor while making a salad, but they...

Can Dogs Eat_Pop Tarts

8 Best Just Food For Dogs Alternatives in 2025: Reviews & Top Picks (Vet-Reviewed)

Fresh dog food delivery services have crashed into the pet industry like a tidal wave, and with good reason. If you are a pet owner, odds are that you have contemplated feeding your beloved pets these human-grade foods; perhaps you...

Dog eating Nom Nom Fresh Dog Food

Can Dogs Have Sushi? Vet-Verified Facts & FAQ

Your pet is one lucky dog if you’re wondering whether you can give your pet sushi. The sushi market has skyrocketed in recent years, with sales jumping over 23% from 2021 to 2022. People view it as a healthy alternative...

Dogster-Can-Dogs-Have-Sushi