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.

Do Antibiotics Make Dogs Tired? Vet Reviewed Side Effects & FAQ

owner giving medicine tablet to his sick dog

Antibiotics are one of the most commonly prescribed drugs for pets, and it’s essential to understand their role in helping our dogs, why your veterinarian may have prescribed them, and what the common side effects are. There are many types of antibiotics and there are some that can indirectly cause tiredness as a side effect. We’ve put together all this information for you, and you’ll learn how antibiotics affect your favorite pet.

divider dog paws 4 oct 2024

What Do Antibiotics Actually Do?

Antibiotics are used to treat bacterial infections. Vets prescribe them if they believe an infection is unlikely to clear up on its own. When it’s left untreated, a bacterial infection can become more severe and lead to complications.

Not only are antibiotics one the most common types of medications prescribed, but there are also many types available and different classes. The various classes of antibiotics work in different ways against bacteria.

pet owner giving pill medication to dog
Image Credit: Jus_Ol, Shutterstock

Common Canine Antibiotics

You may find you recognize some of the names of antibiotics; dogs can be infected by many of the same bacteria we can, so it makes sense that you’ll see a crossover between their medication and ours.

Medications you might see are:
  • Amoxicillin
  • Amoxicillin/Clavulanate
  • Cephalexin
  • Enrofloxacin
  • Gentamicin
  • Metronidazole
  • Sulfamethoxazole-Trimethoprim
  • Tetracycline

However, don’t be tempted to self-diagnose or treat your animal yourself. Using antibiotics when they aren’t required leads to antibiotic resistance, which is dangerous for humans and pets. Several organizations, such as the World Organization for Animal Health (OIE), have outlined how important it is to use antibiotics wisely to sustain their viability as treatments.

Do Antibiotics Make Dogs Tired?

Antibiotics usually aren’t the direct cause of a dog’s tiredness. However, they can indirectly cause tiredness due to some of the side effects that taking antibiotics can have, including nausea, vomiting, and diarrhea, which can all lead to feeling tired due to the effects on the body. It’s important to be aware of the potential side effects of a certain antibiotic and monitor your dog while they are taking antibiotics.

Can a Dog Overdose on Antibiotics?

Another important consideration is, can a dog overdose on antibiotics?

The answer is not only yes, but according to the Pet Poison Helpline, these are signs to look out for:
  • Diarrhea
  • Discolored teeth
  • Drooling
  • Inappropriate drinking or urinating
  • Loss of appetite
  • Skin lesions
  • Tremors
  • Vomiting

There are hundreds of antibiotics, and they each have a unique function and specific dosing range. If you believe your dog has ingested too much of an antibiotic or has ingested one prescribed to a human, contact your vet immediately.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your dog — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

Possible Side Effects

Some antibiotics cause nausea, vomiting, diarrhea, and a loss of appetite, and you notice these effects within a day or two of starting the antibiotic. Feeding your dog when administering antibiotics can minimize these side effects. However, it is possible for your vet to switch your dog to a different antibiotic or give them something else alongside the antibiotic to relieve the gastrointestinal upset.

Dogster_Website dividers_v1_Jan 18 2024-01-TEST

Do Antibiotics Make Dogs Urinate More?

Peeing more often may not be due to the antibiotic itself but could be a downstream effect of increased thirst to compensate for, say, the diarrhea that has led to dehydration from the fluid loss. Many medications also recommend giving your dog plenty of water to stop the tablets from getting stuck in the esophagus, and increased water intake results in more urination.

White-brown shih tzu dog pee in the green bush
Image Credit: artartty, Shutterstock

Allergic Reactions

Dogs can suffer from allergic reactions to antibiotics, but it is relatively uncommon. Just like humans, dogs can develop an allergic reaction at any time, so be aware that a past tolerance does not mean there won’t be an allergic reaction in the future.

The signs of an allergic reaction range from mild to severe, but the possible signs include a rash, hives, or swelling. Your dog could also experience difficulty breathing, seizures, excessive salivation, vomiting, and diarrhea. If you notice these signs, get your dog to the vet immediately.

Neurological Effects

Another relatively uncommon, though possible, side effect are neurological effects. These include head tilting to one side and balance problems. It’s crucial when your dog is on medication to monitor them closely so you can take the appropriate action if something goes wrong.

divider dog paws 4 oct 2024

Conclusion

Antibiotics are not directly responsible for your dog’s tiredness, but they arguably play an indirect role as they help your pet recover. It’s essential to follow the vet’s treatment instructions carefully to avoid an adverse reaction and look for any unusual signs while your dog is on an antibiotic. Also, be sure to provide healthy meals, fresh water, and plenty of love to your pup.

See also:


Featured Image Credit by: Creative Cat Studio, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.


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

Can Cats and Dogs Mate? Vet-Verified Facts & Info

Multi-species households with cats and dogs may be concerned if their pets are mounting one another. Will they wind up having a litter...

Can Dogs Eat Salsa? Vet Approved Facts & FAQs

Salsa is a spicy relish composed of tomatoes, peppers, herbs, limes, onions, and spices. It’s usually paired with tortilla chips as an appetizer,...

How to Handle a Dog’s Teen Rebellious Phase: 8 Tips & Tricks

After 20,000+ years of domestication, it’s little surprise how much modern dogs fit in with their human families. They act like our children,...

Do Dogs Have Tonsils? Vet-Verified Canine Anatomy Facts & Info

Dogs have a lymphatic system which is part of their immune system. Tonsils are a part of this lymphatic system, and they can...

More related

10 Red Dog Breeds: Big, Small & Fluffy (With Info & Pictures)

As far as the color of a dog’s fur is concerned, nothing is more attractive than a young dog’s red coat. Surprisingly, dogs...

How to Train a Guard Dog: 5 Vet-Approved Steps & Breed Selection Tips

Dogs are truly man’s best friend, and any dog owner knows what a rewarding experience it is to have a dog by your...

12 Common Prescription Anxiety Medications for Dogs (Vet Answer)

Most dogs are so happy-go-lucky that you could never imagine any of them experiencing something like anxiety. But the fact of the matter...

Ichthyosis In Golden Retrievers: Vet Explains the Signs, Causes & Care

Skin conditions in dogs are a hot topic these days. Many dogs experience allergies, skin infections, itchiness, discoloration, hair loss, etc. But what...

Keep reading

Bully Max High Performance Dog Food Review 2026: Pros, Cons, Recalls, & FAQ

Review Summary Bully Max is an American company that specializes in food and supplements for high-performance dogs made with high-quality ingredients. The food is high in calories, protein, and fat and is quite effective at adding muscle to dogs that...

Dogster_Bully Max High Performance Dog Food Review

Can Dogs Eat Acorns? Vet-Verified Facts & Safety Guide

Dogs love exploring their surroundings and trying new things. So, it’s not uncommon for them to become curious about natural snacks like acorns and the nuts of oak trees (Quercus species). But as pet owners, it’s important to understand the...

Can Dogs Eat Acorns

Can Dogs Eat Goji Berries? Vet-Verified Facts & FAQ

If there’s one so-called superfood that’s made a big splash in the last few years, it’s goji berries. Known for their sour flavor and bright red color, goji berries are a popular addition to salads, smoothies, or a super snack...

Can Dogs Eat_goji berries

Can Dogs Eat Mussels? Vet-Approved Benefits & Safety Tips

Dogs can eat mussels in moderation. Mussels are high in protein and other nutrients that may benefit your dog; however, they don’t provide everything your dog needs, so they should only be considered an occasional treat. It’s best to steam...

Can Dogs Eat_Mussels

Is It Alright if My Dog Only Eats Wet Food? Vet-Approved Facts & FAQ

We all want to ensure that we are feeding our dogs a well-balanced diet that meets all their nutritional needs. Not only are there an overwhelming number of choices for dog food brands and food varieties, but there is a...

dog eating wet food

Can Dogs Eat Pomegranates? Vet-Verified Nutrition Facts & Info

Pomegranate is widely billed as being a superfood for humans, thanks to the diverse range of vitamins and minerals it contains, and the concentration of them. They are particularly known for being high in fiber and potassium as well as...

Dogster-Can-Dogs-Eat-Pomegranates

Nature’s Logic Dog Food Review 2026: Pros, Cons, Recalls, and FAQ

Review Summary Nature’s Logic was founded in 2006 by Scott Freeman. Freeman conjured up dog food that uses 100% natural ingredients without using cheap, synthetic vitamins. In 2005, the first batches of dry dog and cat food were sent to...

Dogster_Nature’s Logic Dog Food Review

10 Best Dog Food Toppers in 2026: Reviews & Top Picks

Providing nutritious food and treats for your canine is vital for maintaining a healthy lifestyle. High-quality meals were once a niche market, but now, premium brand companies enjoy record sales. Although high-end pet food is typically produced with fewer fillers...

cute corgi dog eating dry dog food