CBD Dosing for Dogs: Choosing & Calculating the Right Dose

cannabis cbd dogs dosing correctly boulderholisticvet blog post

In this article, I am going to walk you through how to calculate a dose of CBD for your dog.

My favorite CBD product is HempRx by Rx Vitamins for Pets. For small dogs, I recommend starting with the HempRx Soft Chewz or the HempRx oil. If your pup is 20 lb or larger, I recommend using the HempRx Forte to save money. This version is twice as concentrated with over twice the volume.

Products with high levels of CBD are expensive.

For this reason, it is most economical to find the smallest dose that is effective for your dog. There are no industry wide established doses for dogs currently. As the cannabis market expands, more resources will be dedicated to research in optimal dosing for dogs.

Choosing A Dose

I start with 0.2 mg/kg twice daily and work up to 0.5 mg/kg or higher twice daily. The HempRx Soft Chewz for Small Dogs contains 1 mg per chew, while the HempRx Soft Chewz for Dogs contains 3 mg per chew. HempRx oil contains 0.5 mg per drop and the HempRx Forte contains 1 mg per drop.

It is safe to increase the dose past 0.5 mg/kg twice daily. Often for pain, seizures or severe inflammatory disease, I increase to 2-3 mg/kg twice daily. For reference, all of my animals are on 2 mg/kg or more twice daily. I definitely have the HempRx Forte in my fridge! If your dog tolerates CBD, the only downsides to a higher dose, is a higher cost. 

Calculating a Dose

If you want to skip the calculations, I have a dosing chart here. However, if you want to calculate the dose yourself, here is how.

Step 1: Convert your pup’s weight from pounds (lbs) to kilograms (kg). You can do this by dividing the weight in pounds by 2.2. Let’s start with an 40 lb dog.

40lb (division sign) 2.2 = 18 kg

Step 2: Multiply the number of milligrams (mg) in the dose by the number of kilograms (kg). If the dose is 0.2 mg/kg, you would multiply 18 kg x 0.2 mg to get 3.6 mg. I would round this up to 4 mg.

0.2 mg x 18 kg = 3.6 mg per dose, round to 4 mg per dose

Step 3: Use the concentration of the CBD product you are using to calculate the volume of oil you should administer. Depending on the product you are using, this is easier said than done. If you are using HempRx or HempRx Forte, it’s REALLY simple! HempRx has 0.5 mg per drop. HempRx Forte has 1 mg per drop. For example if you need to give your pup 4 mg of CBD twice daily. You could use 8 drops of the HempRx or 4 drops of the HempRx Forte twice daily.

If you are using another product, you need to know how many milligrams (mg) of CBD is in each milliliter (mL) of oil. Unfortunately there are a few companies that refuse to disclose this information. It is impossible to know if the dose you are using is therapeutic. For this reason, I don’t recommend these products.

Once you know how many milligrams of CBD are in each milliliter (ml) you can calculate the dose volume. For example, HempRx has 15 mg of CBD per milliliter (mL) of oil. If I have calculated my dose to 4 mg of CBD twice daily, I simply divide 4 by 15 to get the number of milliliters of oil I need to give my kitty.

HempRx has 15 mg/ml of CBD Dose of CBD is 4 mg twice daily 4 mg (divided by sign) 15 mg = 0.266 ml Dosing past one tenth of a milliliter is difficult. Don’t do it!

I would round 0.266 mls to 0.3 mls. For this volume, you could use a 1 milliliter syringe and draw back to 0.3 mL mark. If you prefer to use the dropper in the bottle, you could estimate a third of the dropper. This assumes the dropper holds 1 mL of liquid. For reference 1 milliliter (mL) is equal to a cc.

Is your head spinning with numbers and units of measurements yet? Feel free to post questions in the comments below!

Sending you and your pet all of my love,

87
Share Your Thoughts

avatar
42 Comment threads
45 Thread replies
3 Followers
 
Most reacted comment
Hottest comment thread
44 Comment authors
Claire Primo, Veterinary Nurse for BHVLinShawn StephensMisty OrangeAnika Clark Recent comment authors
  Subscribe  
newest oldest
Notify of
Joanne
Guest
Joanne

I have started my 13 yo labradoodle on hempRx forte cbd oil. She was diagnosed with Cushings disease in early September, started on Vetoryl, and has panting and weakness /discomfort in her hind quarters. She weighs 36 lbs and I started her on 4 drops 2 times a day one week ago. So far i haven’t noticed an improvement in her discomfort and wondered how long I should wait until increasing the drops. Also when I do, should I gradually increase by 1 drop a day,-so 5 drops in am and 4 in the pm.? Thank you for your guidance.

Jacquie Edie, Veterinary Nurse for BHV
Member
Jacquie Edie, Veterinary Nurse for BHV

Hi Joanne, I am so sorry to hear that your labradoodle is panting and uncomfortable. I know how difficult this must be for you both! I think a week is a fair trial to see if your girl will respond to the low end of the dose range. You can certainly try gradually increasing her dose until you find the right amount for her. It is safe to increase by 1 drop twice daily, every other day until you find the lowest effective dose. It is also ok to start increasing by 1 drop each day if you prefer. If… Read more »

Alisha
Guest

I sure am glad I decided to get a smaller dog – this CBD stuff ain’t cheap!

Thanks for the dosage guide, by the way 🙂

Denise Gamble
Guest
Denise Gamble

My dog has had wobblers surgery and a spinal stroke. He is 145 pounds and your dosing chart does not cover that weight. He walks about 85% normal and is 7 yrs old this month. I feel he could benefit from your products but am not sure which one. I know he has some inflammation and pain. I am not sure because of his size and the amounts he would need if I could ever afford it but if you have some thoughts that would be great. Thank you,

Frankie Renda
Guest
Frankie Renda

Hi, I want to try this for my 13 year old King Charles Cavalier who has arthritis and wobbly legs and weighs 8.2kg but am worried about what type to give, how much, and the best place to purchase this from

Jane
Guest
Jane

We adopted our Pit Bull/ Mastif mix 8 months ago-80 lbs. He has serious vision issues and is partially blind in one eye. He is anywhere from 6 to 8 yrs old. 3 months after we had him he got Leptospirosis and was in2 different hospitals for 7 days- serious liver, kidney issues. He survived but has had periodic behavior issues since then. A day care facility which we had to remove him from thought he had a seizure after an incident of snapping at another dog. He has also been aggressive towards dog walkers who he was fine with… Read more »

Jayson
Guest
Jayson

I have a bottle of CBD Hemp oil 2000mg/30 ml. I was told there is 66mg per ml of CBD. I have a dog who has severe anxiety when going outside and worse when he goes to the groomer or the vet. How many drops should I give him a day? Thank you!

Jennifer Bomhard
Guest
Jennifer Bomhard

Regarding dosage… Yes, my head is spinning a bit!! To be sure I have this correct… I just purchased oil that says it has 3mg CBD per serving and the serving size is 15 drops, so that would be 1mg per every 5 drops. My dog weighs about 80 lbs. If I double you 40 lb example above, I would be giving him 8mg, so 40 drops? That seems excessive. I should add that this CBD was purchased at the grocery store for human consumption, which would assume at least 150 lbs, I would suppose. Please help if you have… Read more »

Lauren Pointer
Guest
Lauren Pointer

Hi there! Thank you for the helpful information on dosage. Do you think my 10 year old Yorkie who developed a murmur in the past 6 months, would benefit from having CBD oil? I hear it’s good for the heart for anti-inflammatory properties.

SANDRA LENNY
Guest
SANDRA LENNY

I WOULD LIKE TO START GIVING CBD TO MY 14 YEAR OLD BOSTON TERRIER WHO HAS CUSHING AND SEVERE ARTHRITIS IN HER FRONT LEGS. WITH TAKING VETEROYL IS GIVING CBD OK?? OR SHOULD I STOP THE VETEROYL WHILE I TRY THE CBD??

Chris
Guest
Chris

I’m trying to figure this out and any help would be amazing! My German Shepherd has seizures and was told by my vet that cbd might help. Trying to figure out how much to give him. He is a bit over 70lbs (32kg) and I got a 30ml bottle of 1000mg. The place I bought it from said 3-4 drops 2 times a day but that seems like a lot?

Jeff Weber
Member
Jeff Weber

We have a 12 1/2 year old 4lb Yorkie. She has issues with her hide hips, knees and a disk issue towards her back half. I want to start her on CBD. My question is: she had been on prednisone .5 mg for a year now. Once I start the CBD should I stop the prednisone? We live in East TN and I have not asked our vet yet, but don’t expect him to agree with CBD. This area is very western medicine. Thank you for your opinion.

Donna Ahlers
Guest
Donna Ahlers

Hi, I have a 32 lb mini labradoodle that suffers from anxiety during storms and fireworks. I purchased 1000mg/30ml cbd oil and am juat having a heck of a time figuring out how much to give him. There is 1.7mg in one of their drops. Is 1-2 drops for the situation what I would be using?

Sandra
Guest
Sandra

Hi
On another reply, you state that for an 80 lb. dog, it’s ok to give 9-18mg of CBD. I use the 250mg strength and I tend to measure by drops. How many drops would that be? (I’m dosing her 2x a day)
Thanks!

Todd Lainhart
Member
Todd Lainhart

I just bought a bottle of HempRX oil, and am wondering how to administer it. For my (55 lb) dog, I will to start out with 10 drops, 2x a day. Any suggestions on how to administer it? I tried putting some drops in a pill pouch, but he spat that out. My fear is that I’ll put it on food, and he’ll reject it (and I would have wasted the oil and the food). Typically I would inject something like this (he takes a prescribed liquid NSAID) between his cheek and gums, but trying to get the dosage from… Read more »

Fabianni Builes
Guest
Fabianni Builes

What if I have CBD that is 140mg and my dog is 35kgs

Leah
Guest
Leah

Hello! My dog recently stopped going up the stairs and jumping up on anything. He’s almost 10 and i can tell he’s uncomfortable and I want to try this first. He’s about 15 pounds. I just purchased CBD oil to put in his food. It is 300mg and 30mL, 10mg per 1mL. Can you help me out please?
Thank you so much for all this information! I just want him to be comfortable again and I really don’t want to medicate him with pain killers.

Ed Kozlowski
Guest
Ed Kozlowski

I have a 70lb. Dog and a 250mg. bottle of Pet CBD oil made by WI Hemp Scientific.
The dropper has 4 Marking levels.
25ml. /50ml. / 75ml. /and 1.
How much do I give my pet?
I’m giving him one half dropper once to twice daily for Acl Pain.

Amy
Guest
Amy

I have an 11 year old chihuahua. She ranges between 3.5 and 3.7 lbs. I bought a bottle of pet cbd oil, for anxiety, 200mg cbd in a 15 ml bottle. What should her dose be?

Kim
Guest
Kim

Please help! My head is spinning lol

My dog is 75lbs and the CBD oil that I got has a concentration of 10.3mg/ml .

How much would I give my girl per day?

Thank you!

Lisa Scarbrough
Guest
Lisa Scarbrough

My dog is 75 lbs. My mind is spinning on trying to calculate how may mg to give her. Can you assist? Your help is appreciated.

Sara
Guest
Sara

I have a 13.5 yr old maltese who weighs 10.2 lbs and has an autoimmune disease called Evan’s Syndrome. He has been treated with prednisone for the last 4 months, but the side effects are starting to kill him. Hes experiencing extreme nausea and vomiting. We have lowered his prednisone to 2.5mg twice a day and started him on 11:1 of cbd with thc twice a day. We give him .5ml x2 a day roughly equaling 5.5mg of cbd with 1/2mg of thc. His nausea and vomiting has not stopped yet on day 3 of administration. are we giving him… Read more »

Mike
Guest
Mike

Hey everyone, my dog was recently diagnosed with cancer and was wondering about giving him cbd oil. I’ve done some research and found out that I need thc as well. Just wondering on potency and how much is safe to give. He weighs 116 lbs

Renee
Guest
Renee

Hi, I have a 7 year old English Golden Retriever with arthritis in his elbow and hip. He’s been on CBD oil, but I want to make sure that I am giving him the correct dose. He weighs ~90 pounds. We give him NuLeaf Naturals CBD oil 1450mg/30ml, which has 2.4 mg for 1 drop. Their pet bottle says if your pet weighs over 75lbs to give 8+ drops 1-2 times a day and the directions for use say 2-3 drops per 20lbs. So, is it appropriate to give our dog 9 drops two times a day? Thanks for your… Read more »

Michelle
Guest
Michelle

I have a 5lb Chihuahua who is 15, slowed down and tail is tucked – confused by all the options out there – some say 125mg, to 750mg etc – how do I pick the right strength and can you over medicate ? How long on average does it take to see results for pain/aging in tiny dogs.
Are there any risks or side effects ?

Gerri
Guest
Gerri

Hi. The CBD oil I have is 9.93 mg/ml. How much would I give to a 60 lb Chow

I’m using Edison Cannabis. She is threatened by storms and fireworks

Thank you
Gerri

Michelle Abracinskas
Guest
Michelle Abracinskas

Hi, my beagle has sore ACLs in both legs and the vet recommended CBD oil but it is very confusing. Sadie is 49 lbs and a year old, what would you recommend?
Thank you so much for your time, michelle

Erica
Guest
Erica

Dr. Angie, Thank you for this great article! I am looking for some information on using CBD as a way to treat my dog’s situational anxiety during thunderstorms. I am having some difficulty finding if CBD is something I’d give him at the onset of his anxiety or if it is something I’d give him daily in hopes of helping with the situations that make him anxious. I’m not looking for him to be extra mellow or tired, just trying to find a way to calm him during storms. Please let me know how you would recommend dosing CBD for… Read more »

Kay M
Guest

Hi, My 4 yo is 104 lbs. I bought CBD that is 18.5mg/ml. I’m from Canada so I just bought from the licensed shop and did not get a pet version. my vet recommended I not. How much of a dose should I be giving her? she has a torn acl and is on 6 weeks rest before we determine if she needs surgery. this would be number two for her.

Bryana
Guest
Bryana

Hi there,

I have two dogs with epilepsy that I want to use CBD with. Im a little confused with the math 🙂 The chart says for my 9lb shitzu to do 1-2 mg twice a day and my 12 pomeranian 1.5-2.5mg twice a day. However when I do the math in the article Im getting 8mg twice a day for the shitzu and 11mg for the pomeranian? What am I doing wrong? Thank you so much for your help!!!!

DANIEL LARIOS
Guest
DANIEL LARIOS

Hello, I have a human grade 30ml cbd bottle of 1000 mg of cbd with 33.33 mg per ml. My dog weighs 48 lbs how much cbd do I give him? I do not have a syringe but I can buy one if necessary. The dropper that comes in the bottle goes up in increments of .25, .50, .75 , 1.0 ml

Claire Primo, Veterinary Nurse for BHV

Hi Daniel,

Good question! Dosing can feel so confusing!

Here is our dosing chart. For your pup’s weight, we would start with 5-10mg twice daily. Can the company tell you how many mg of CBD are in each drop, and then we can figure out how many drops you will need to give each day?

Warmly,
Claire

CYNTHIA WOHLWEND
Guest
CYNTHIA WOHLWEND

My beagle is 14 years old and is drinking and urinating every 2 hours. She was tested for cushings and has had blood work done. The vet has been trying to figure this out but has no answers. I started her on the paws chews givng her 1/4 chew twice a day at 10mg of cbd per chew. she weights 28 pounds. Does this seem to be ok. I have some hemp drops but she hates the drops cuz they are mint flavored. I don’t think hemp oil contains real cbd.. your thoughts

Claire Primo, Veterinary Nurse for BHV

Hi Cynthia,

Good question!

Here is our dosing chart! For her weight, we would recommend 3-6mg of CBD twice daily. So 1/4 of the chews that you are using would be 2.5mg (the very low end). You could definitely work up to 1/2 chew if you wanted or needed to!

CBD is a derivative of the hemp plant! The HempRx that we carry has 0.50mg of CBD per drop.

I hope this helps! Keep us posted!

Hugs,
Claire

CYNTHIA WOHLWEND
Guest
CYNTHIA WOHLWEND

can you cut chews in 1/2

Claire Primo, Veterinary Nurse for BHV

Hi Cynthia,

Yes, you can! I’m not sure how well the CBD will be distributed in the area that way, but it’s absolutely worth a try! That would be a small dose, and my guess is you could move up to one treat if desired!

Let us know how it goes!

Warmly,
Claire

Jen
Guest
Jen

I did the math based on Forte for my 98 pound dog but I come up with 45 mg per dose which is way more than the Pet Dosing Chart indicates. Am I calculating something wrong? Here’s my math: 98#/2 = 44.5kg. 1.0mg x 44.5kg = 44.5 (45mg per dose). This would be 45 drops. The 90# weight dosage is 10-20 drops and 110 weight dosage is 13-25 drops. Please help. I’m confused!

Claire Primo, Veterinary Nurse for BHV

Hi Jen,

Your math is perfect!

Our dosing chart’s low end starts with 0.25mg/kg twice daily and the high end is 0.50mg/kg twice daily. That said, there’s nothing wrong with the dosing that you did at 1mg/kg either!

I hope this helps!

Warmly,
Claire

Amy
Guest
Amy

Hi, I’m terrible at maths and am totally lost with the calculations. I need it in simple terms, how many drops, how many times a day. I have an 8 year old American bulldog cross staffy who weighs 30kg, he has just been diagnosed with mast cell cancer (I’m hoping to of caught it early) so I have rushed out a brought a 10ml bottle of 10% CBD, 1000mg. I have no idea what any of that means though, please could you help me in terms of how many drops and how often.
Many thanks
Amy

Claire Primo, Veterinary Nurse for BHV

Hi Amy, I get it! The math can be confusing! I am so sorry to hear about your pup’s mast cell cancer – but I am hopeful that you caught it early too. For cancer patients, we usually start at 0.50mg/kg twice daily on day 1 and work up to 1mg/kg twice daily by day 3. For your pup’s weight that is 15mg twice daily on day 1, and 30 mg twice daily by day 3. Does the bottle you purchased have the amount of milligrams of CBD per drop? This is the information that you will need! If you… Read more »

Mckenna Ryan
Guest
Mckenna Ryan

I have a 12 yo Golden Retreiver with mild seizures, unpredictable. I also have HempMy Pet CBD Oil with a dropper in ml. Danny is 94lbs: how much should I start him off at in ml? so confusing.

Claire Primo, Veterinary Nurse for BHV

Hi McKenna,

It can be confusing!

Here is our dosing chart. For your pup’s weight, we would start at 10-20mg twice daily. Does the HempMy Pet have the amount of mg in each drop? This will help you calculate the correct dose!

I hope this helps! Keep us posted!

Warmly,
Claire

kay
Guest
kay

Adopted a 15 lb bichon from the local shelter. He is very fearful. It is obvious he was abused during his first 3 years of life.(guestimate) I have some 250 mg cannabidol oil and am math challenged and cannot figure out the dosage. Please help. Thanks

Claire Primo, Veterinary Nurse for BHV

Hi Kay,

The math can get confusing! Have you checked out our dosing chart here. For your pup’s weight, we would start with 1.5-3mg of CBD twice daily. Will the company/brand of the CBD bottle you have tell you how many mg of CBD are in each drop? From there, you can know how many drops to give your boy.

I hope CBD helps! Please keep us posted!

Warmly,
Claire

Deidre
Guest
Deidre

Hi I have a 20kg, 9 year old female German Shep and she is experiencing joint pain. I bought 100mg CBD oil that has 3.3mg of CBD per 1ml (15 drops). Please help and let me know how much CBD oil I can give her per day

wendy
Guest
wendy

I am ” old school” and find these metric conversions from millimeters to milligrams confusing! How many millilitres of cbd can I give to a 95lb golden retriever.? To all math people, I appreciate the help. Please don’t ask me to convert….just need to know millilitres.
Thanks

Claire Primo, Veterinary Nurse for BHV

Hi Wendy!

The amount depends on the product that you are using, and how many mg of CBD are in each drop or millileter1

Are you using HempRx or HempRx Forte?

We are here to help!

Warmly,
Claire

Anika Clark
Guest
Anika Clark

Hello Dr. Angie my dog has been having pain and the vets don’t know what’s causing it now she been throwing up and literally falling over can’t breathe from the foamy substance that gets stuck we have tried so many meds and it’s getting worse I was told to try CBD oil I purchased the trublu the bottle is 250 mg the dropper says 1ml how much CBD do I give my 14 pound pug / Chihuahua mix how many droppers full 1 or half I’m not sure please help. Sincerely worried pet mom

Claire Primo, Veterinary Nurse for BHV

Hi Anika,

I am so sorry to hear that your pup is so sick! Have you veterinarians made any further suggestions for diagnostics or plans to go forward? How scary!

Here is our dosing chart. For your pup’s weight, we would start at 1.5-3 mg of CBD twice daily.

Are you able to call the CBD company and ask them how many mg of CBD are in each drop? That information will be so helpful for you! Without it, we really can’t know how much many drops to give!

Hugs,
Claire

Misty Orange
Guest
Misty Orange

I have a golden retriever that has cancer and is having seizers from it. I want to try cbd gummies or oil. He weighs between 50 and 60 lbs how much should I give him

Claire Primo, Veterinary Nurse for BHV

Hi Misty,

I am so sorry to hear about your pup’s cancer diagnosis and seizures.

Here is our dosing chart. On the far left, you’ll see the CBD dosing for non-HempRx products. This is the column for you! For your pup’s weigh, we would start with 6-12mg twice daily. Usually for cancer patients (at your dog’s weight), we would start with 6 drops twice daily on day 1, working up to 12 drops twice daily by day 3.

I sure hope this helps! Will you keep us posted?

Hugs,
Claire

Shawn Stephens
Guest
Shawn Stephens

I have a 100 pound German shepherd hound mix with epilepsy. How much CBD should I be giving him

Claire Primo, Veterinary Nurse for BHV

Hi Shawn,

Good question!

Here is our dosing chart. For 100#, you will want to give 13-25mg of CBD twice daily.

I hope this helps!

Warmly
Claire

Lin
Guest
Lin

My dog weighs 6 lbs. The CBD level is 20.7/ml.
The thc is .78mg/ml. What dosage might be appropriate to start with? He is also on phenobarbital 15 mg.

Claire Primo, Veterinary Nurse for BHV

Hi Lin!

Here is our dosing chart.

For your pups size, we recommend starting with 0.75mg-1.5mg of CBD twice daily. For dogs on anti-seizure meds, we recommend starting on the low end (0.75mg twice daily).

I hope this helps!

Warmly,
Claire

dr angie pet homepage square boulderholisticvet

Hey there, I’m Dr. Angie

I help empower pet owners to become medical advocates for their pets.

Let's get started!

What would you like to read?

“FREE” Cannabis for Pets Quick Start Guide

Learn how cannabis can help your dog or cat live a better life.
pawprints boulderholisticvet

FREE SHIPPING* ORDERS OVER $100

MORE INFO HERE >

FREE SHIPPING* ORDERS OVER $100

MORE INFO HERE >
pawprints boulderholisticvet
This site requires anonymous cookies and various 3-rd party services to function properly. To continue using Boulder Holistic Vet, you must consent to our Cookie & Privacy policies.

tHE mIRACLE HERB

20% off flash sale... today only!

USE "TMH2019" AT CHECKOUT

tHE mIRACLE HERB

20% off flash sale... today only!

USE "TMH2019" AT CHECKOUT

"FREE" Cannabis for Pets Guide >>>

Are you curious about how to get started with using Cannabis for your Dog or Cat? Grab my free guide below!

Enter your information below and choose what type of pet owner you are to sign up: