Panacur For Cancer Update: New Study, Doses, Regimens
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Panacur (Fenbendazole) has been successfully used to treat cancer in people, dogs and cats. This is the suggested doses, and regimens for animals.
New Study
Anti-cancer effects of fenbendazole on 5-fluorouracil-resistant colorectal cancer cells: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9437363/
My cat has lung cancer and they want to put him to sleep this Saturday. How long does this take to work? I don’t want to kill my cat! Where can I get the powder. My vet only has the liquid and won’t get the powder for me. They just don’t care.
Hi Karla, the liquid is fine to use – otherwise you can get it on Amazon.
I hate to be a moron, but with Panacur liquid how much would I give a 9.5 pound cat. When I get the powder how much would I give of that? The math just befoggles me, but I haven’t been sleeping because I am so worried about my cat.
Dr. Jones’ suggestion is 50mg/kg – about 22mg/lb. For a 10lb cat, that would be 220mg. The granules are 222mg / g, so 1 g of the capsules will work. For the liquid, at 100mg / ml, for your cat, 2.2 ml.
Hi Michael, my cat is 7kg, if i buy the granules one, how much do i give him. He is diagnosed with liver cancer.
It would be 350mg for your cat, so roughly 1 and a half granules/packets.
Order panacur c on tractor supply website they ship pretty fast
Michael – Am asking you directly since your provided all the replies here. Btw, I have no way to contact Andrew Jones which is why I am asking you here.
My 9-year-old, 8.5lb (~4kg) female cat has what is very likely squamous cell carcinoma. No biopsy was done but this is the most likely diagnosis. The vet (not very competent) said she saw tumor growth in my cat’s mouth about a month or so ago. There has been significant soft tissue loss on her lower front left jaw such that a significant concave “hole” now exists.
I cannot decide what Fenbendazole dosage regimen to put her on. Since Sept. 9 I have given her liquid Fenben (the only product available in this tiny country). I did not precisely follow the “3 days on followed by 4 days off” protocol for various reasons. Mostly I did but some days I had to give her half the dose and I gave her Fenben on more than 3 days in a row.
The process of tissue loss must stop very soon for my cat have a chance to survive. Should I do 2ml. of liquid Fenben 3 days on followed by 4 days off or give her .4ml each day? I tend to think in her condition that Fenben daily (maybe one day off per week to rest her liver) might be better. But daily the dosage is greatly reduced compared to the 3 on/4 off dosage regimen. So I am in a quandary.
Would you suggest which of these two dosage regimens you think is better or recommend a third dosage regimen? I would very much appreciate it.
Hi David, unfortunately I don’t have any suggestions more than what Dr. Jones has provided. There isn’t an established protocol that we know works, so all I can say is to follow the regimen – 3 days on, 4 off, of the higher dose.
Hi – I came across your site while researching fenbendazole. If Panacur helps cancer and tumors, has anyone tried this for cushings disease? My 12 year old dog, 19 adrenal has been diagnosed with early onset Cushings and has 2 enlarged adrenal glands, which my vet said means it’s caused usually by a tumor on the pituitary gland. I’m working with my vet to try this for a month and see if it’s ALP numbers improve. Thanks!
Hello, If the test comes back positive for cancer cells, (from a newly discovered lump on her rear upper thigh area) how much liquid fenbendazole should I give my 14 year old cat? She weighs 7.2 lbs. And for how long?
Hi there. My 11 month old Rhodesian Ridgeback was just diagnosed with Nephroblastoma. His mass on his kidney is quite large already and the prognosis is bleak. I have fenbendazole here but have read a couple of different treatment options and was curious what you would suggest for him. He’s 100 lbs.
Hi. My 10 year old, 20kg female dog has cancerous lesions on her tummy. I have panacur paste and am not sure how to measure 880mg (which is what I’m lead to believe must be her daily dose) in paste. I have thus far been giving her a small squirt of paste (like a pencil eraser amount) every morning and evening for 7 days. I will now give her a 2 day rest and then continue for another 7 days. Please let me know via my email address if this is ok. I have asked around and I’m not getting any hard and fast confirmation. No one seems to really be sure if this is right or wrong and the vet poo poo’s the idea of panacur healing cancer so he is not helpful.
I’m also giving her 30 drops of pet CBD oil every evening and 15 drops every morning. I was also giving her curcumen and quercetin capsule every morning and evening but she has grown wise to this and I’m running out of ways of tricking her into taking this so she actually hasn’t had these for the last couple of days – whatever I do she seems able to detect the capsule and she spits it out. Please can someone help me URGENTLY. My email address is (removed) – in case you don’t pick this up in my information below. Thank you. So very grateful for your input
Hi Wendy with the suggested regimen of 3 days on and 4 off, the suggested dose for your dog would be 1000mg per day (at 50mg/kg). There are other regimens that others are trying (a lower dose, daily regimen). The paste (10%) is usually 100mg fenbendazole / g of paste, so that would be 10 grams of the paste (roughly 40% of a 25g tube). The lower dose would be about 200mg per day, every day – we’ve had reports of that working better for some pets (they seem better on the days they have the treatment).
DISCLAIMER: Any information we provide through our support desk is for educational purposes only and is not intended to replace the advice of your own veterinarian.
Put the paste on a front leg or a place she can lick it off in grooming herself. Not on her paw because she’ll just fling it off. You might have to be sneaky putting it on her forearm, but thats a pretty good place. If its the flavored paste, she’ll more likely lick it all off
My cat was just diagnosed with renal lymphoma and has tumors on both of his kidneys making them double in size. Also some possible metastasis into lungs. The doctor says he has about a month to live without chemo and I am wondering if it would even be worth trying this drug for him or if it would harm him? Please let me know your thoughts.
Hi, my 10yo Great Dane was diagnosed w/hemangiosarcoma which gives him maybe 2mos w/us…. I read about fenbendozole and have treated him 3 days on and 4 days off for 3wks…how long should I do this protocol or would it be better to give him lower doses daily?? Thank you!
Hi Allie, Dr. Jones suggests trying that protocol for a month. If it’s working you can continue, or you can try the lower daily doses (roughly 200mg per day). Some have seen that the lower dose, daily regimen works for their pets. One person who contacted us has had his dog (lab) on that protocol for over 2 years (and his dog is still doing well).
Michael, I’ve read the comment from the lab owner under one of Dr. Jones’ videos. The lab owner, IIRC, advised he was using fenbendazole along with krill oil. I know that Dr. Jones has advised about krill oil, but I cannot find the dosage he recommended. Do you know what it is?? My cat has lymphoma, and has been on the high dosage Fenbendazole for a month. I would like to add the krill oil to his regimen
Hi Jane, his recommended starting dosage for Omega 3 in krill format is 500 mg per 10lbs body weight daily.
Thank you, Michael, for your reply. I found Dr. Jones’ recommendation on one of his videos. My cat was diagnosed with Lymphoma at the beginning of October 2023. I started him on Panacur right away…3 days on/4 off, and have recently added krill to the regimen. He had been on prednisolone previously, to encourage his appetite, as he has always been a picky eater, and he continues on the prednisolone, as well. . His lymph nodes (mandibular) have not reduced as yet, nor visibly spread elsewhere. I understand that the Panacur is not a magic bullet (but hope that it might be!), but I feel that at least I’m trying something to try to help him. One thing to remember is that, unlike humans, our pets do not know that they have cancer, and so are not affected by the psychology of that knowledge. We live in hope.
Something to think about, steroids release glucose which can feed the cancer cells. My cat is on a low dose himself and I’m going to chat with the vet and see if the benefits out weigh the negatives.
Hi,
We have a 3 year old, 110 lb (50 kg) Maremma Sheepdog that just got a cancerous tumour removed from his left hip 3 weeks ago (his initial cithology report showed sarcoma cancer cells). They did x-ray and ultrasound and he doesn’t show any presence of cancer inside his internal organs. However, the oncologist who saw him recommended a full course of chemotherapy to prevent metastasis, due to the malignant carcinoma found in the histopathological testing from the whole tumour. We are not comfortable on giving him this chemotherapy treatment, due to the severe side effects that it can bring, so we want to try this alternative treatment. Our question is, do we give him the same dosage for prevention as it is given for treatment? Meaning, do we give him a high dosage of 50 mg/kg (3 days on, 4 days off), or something closer to 1 mg/kg (daily) for metastasis prevention?
Also, how about Mebendazole and Ivermectine, and what dosages?
We thank you greatly for this wonderful source of information and for your help.
Hi Michael,
Can you please advise us on the prevention dosage of Fenbendazole, as noted above?
Regards.
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
I have a great pyranees that has osteo sarcoma in her front leg. She would not have quality of life with a front leg amputation. She is on turkey tail mushroom and mega mushroom, Panacur at 19 cc. Do you feel there would be any benefit with castor oil wrap and or cool laser therapy? She is on an organic diet. Any suggestions are welcomed.
Here’s another suggestion that you can try:
Make a tea with one tablespoon chaga powder with 2 ounces of almost boiling water. Steep, covered, for 30-40 minutes.
To a blender, add:
* Chaga
* Chaga tea
* 1/4 oz castor oil
* 1/2 ounce neem oil into a bullet blender or use a stick blender.
Pulse-blend to make a paste. Add additional chaga powder to achieve paste consistency. Apply to tumor, cover with gauze andleave overnight.Apply this daily. Mixture will last for 2-3 days in the refrigerator.Use vet wrap to keep gauze in place. You can also use chaga paste as a poultice 2-3 times daily.
In conclusion, while the thought of your dog getting an MCT is frightening, remember, knowledge is power. By knowing what to look for and understanding the treatment options available, you can ensure your furry friend gets the best care possible.
Best Wishes,
Dr Andrew
P.S. Most Mast Cell Tumors are Grade 1 and can be cured with surgery, or monitored and 1st treated with alternative remedies. If you have a breed at higher risk, then be more aggressive (i.e. boxer, the Rhodesian ridgeback, the pug, the Boston terrier, the pit bull terrier, the Weimaraner and Shar-pei).
P.P.S. If you have a lump on your pet, an arthritic pet, a dog with cognitive dysfunction, I encourage you to try my CBD for dogs and cats.
Check our store for Ultimate CBD details:
https://drjonesnaturalpet.com/supplements/dr-jones-ultimate-cbd-oil.html
Thank you so very much, I’ll get right on this. She has no pain and is eating like a horse, she gets venison, brown rice , vegetables with turkey tail mushroom and vitamins and pro biotic. She has been on the pancur regiment for two sessions so far. I’m keep a journal and will gladly share if needed.
Deborah – My 7 yr old lab was just diagnosed with Osteosarcoma on his from leg. We are going for more testing next week to confirm diagnosis. Do you mind me asking how things are going for your sweet girl. Do you have any tips or info to share?
I am not a doctor and this is for information only. I kept her on the pancur for a month. Her tumor has gone from golf ball size up to a softball size. I am taking a course from Yummy.Doctor on canine cancer and following the canine cancer protocol! This involves a lot of homeopathy, dmso and mms. Organic diet, colloidal silver and allot of herbs among a few ingredients. She is tolerating it well and actually started to bark again.
Please respond with Dr Jones opinion about castor oil wraps and or cool laser therapy for osteo sarcoma. Also is 19 cc the correct amount for a great pyr weighing 38 k. I have her on 3 on and 4 days, turkey tail mushroom and mega mushroom.
We have a Maremma sheep dog of 9 years who suddenly developed a neoplasia in his front leg and already has a hard bump hurting him. We give him Metacamp in order to be pain free and able to walk. We started also CBD oil full spectrum 30mg, curcumin in food, quercetin 300mg, and boswellia serrata and Carterii essential oils which I apply topically (these oils have shown anticancer properties). After some research I came across Fenbendazole and I talked about it to our vet, so today we will start that as well and will follow your instructions i.e. 3 days on 50mg/kg (our dog weights 32 kg so 1500mg) 4 days off, then again for 30 days. After that we will keep him on lower dosage. Thanks for your precious videos. Best wishes for the New Year from Switzerland!
Hi, my Border Collie was Recently Diagnosed with Lymphoma.
She is 14.5kg I’ve worked it out to be 9.5ml of liquid Panacur for her weight. Is this correct?
Thanks
Hi Jane, at 50mg/kg, for a 14.5kg dog that would be 725 mg, liquid is 100mg/ml so the amount would be 7.25ml.
Is it safe to give an elderly dog panacur as a preventative? TIA!
Yes it is
My 5 lb cat has cancer. A friend suggested Fenbenzadol as a treatment. What’s the dosing for the powder or liquid. Your advice would be greatly appreciated.
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
I have a 45 pound dog and a 75 pound dog both with cancer. I would need over 1000 mg for the small dog and 1700 for the big dog. That seems like an awful lot of medication and I’m not sure where to get it in that quantity
My dog is 200lbs how much of the
Granule panacur should I give him. He has been diagnosed with lymphoma
Thank you
Hi, Dr. Jones’ suggestion for the 3 days on and 4 off regimen is 50mg/kg, if the granules are 222mg, your 200lb dog would need about 4500 mg, which would be 20 granules. The other protocol is to give it daily, at a much lower dose, but most start with the 3 on and 4 off schedule.
Hello, I have the paste and a 24 pound dog just diagnosed with stomach tumors. What would be the dosage in mils (a 3 or 6 mil syringe)? I want to try the every day dosage for awhile.
I’m in the US and am having a hard time converting from metrics. Is there a cheaper way to admister it as I am on a limited income.
Also, what about CBD?
Thank you, I do appreciate your help.
Katy
My 11 year old Border Collie mix just had a hemangiosarcoma removed. Vascular invasion was not detected. Clear radiographs and abdominal ultrasound. The oncologist feels it is a one off and unlikely to reoccur. I would like to put him on preventative Fenbendazole as a precaution. I would prefer to use pills if possible. Do you have any suggestions on how I should proceed? Thank you in advance.
Crystal
Is the dosing for prevention the same as for treatment?
Thank you!
Yes it is
Hello
I have a beautiful 50kg (110lb) Portuguese Mountain Dog with aggressive osteosarcoma which has spread 🙁
I live in the UK and currently have the Panacur granules – they are 22.2% and contain 3 x 4.5g sachets per packet. Each 4.5g sachet contains 999mg of Fenbendazole, however, I am confused as to what dosage to give him due to his size? I believe he would need a 2500mg dosage and thought I had worked it out to 2 and a half of these size sachets a day for 3 days then 4 days off, but I feel like this may be quite a lot for him?!
I am wondering if the FenBen tablets would suit him better perhaps?
Any help would be gratefully received.
Thanks so much
Nina
Here’s an article that can help:
Bone Cancer was always one of those cancers that I neverwanted to diagnose in practice… no real good treatment options, and for most dogs it has already spread by the time it is diagnosed.
So prevention is key. But what you feed your dog can play a big role in this.
Most of us now know the benefits of supplementing our own, less than ideal diets… well the same thing applies to your dogs.
Your dog on kibble is not getting as many beneficial nutrients that can help support their immune system, preventing serious disease in the first place.
Our supplement, Ultimate Canine ADVANCED Health Formula, has a 10, 000% increase in probiotic levels, additional Antioxidants, 400% more Colostrum, 100% INCREASE in Essential Fatty Acids.
You should see ALL the ways it can help your dog here:
http://www.thedogsupplement.com/advanced%5D
This is the X-ray of a dog with Bone Cancer:
Osteosarcoma in Dogs
This is bone cancer, common in medium- to large-breed dogs. The bones of the legs are most commonly affected. Most dogs first intermittently limp, then progressively limp more often as the tumor grows from the inside of the bone out. At that point you may see a swelling at the end of the bone, and it is firm and painful to touch.
VETERINARY DIAGNOSIS AND STAGING. Your vet will perform blood tests, X-rays, and possible bone biopsy, although the X-rays are generally diagnostic.
BISPHOSPHONATES. Bisphosphonates are used to treat osteoporosis and to help lower high calcium seen in certain types of cancer in people. The most common bisphosphonate is oral alendronate (Fosamax). In bone cancer, bisphosphonates can inhibit osteoclasts (cells that cause bone lysis), as well as directly kill bone cancer cells, and be a great source of pain control. If used, you need to discuss this with your veterinarian. The dose is 40 mg per day (large-breed dog) or 70 mg every other day.
ALTERNATIVE TREATMENTS: This can include previous treatments I have discussed for Canine Cancer including Dandelion Root Tea Tincture, Panacur, Turkey Tail Mushroom, Cannabidiol/THC, Melatonin and 95% Curcumin.
Immunotherapy Study
A new non profit called The Canine Cancer Alliance is seeing some promising results with a new form of immunotherapy against dogs with Bone Cancer (osteosarcoma).
They are located in Washington State, and currently accepting dogs with Osteosarcoma as part of the study.
EGFR/HER2 Vaccine Study
A new cancer immunotherapyis available for dogs with tumors associated with EGFR/HER2 overexpression
Potential benefits of cancer immunotherapy for pups
* May stop or slow recurrence and spreading of cancer
* May help when surgery is not possible, or if chemotherapy doesn’t work
* May reverse cancer metastasis
How does it work?
Safely activates the immune system against cancer cells that are over-expressing EGFR and HER2 proteins.
The vaccine has already been given to over 600 dogs. Minimum side effect reported.
May help with many different cancer types. Preliminary data for osteosarcoma and hemangiosarcoma published.
Limitations and challenges
Today’s immunotherapy cannot guarantee every dog will become a long-term survivor.
Researchers are investigating different ways to safely enhance the efficacy and increase the number of responders.
Study Locations
Bridge Animal Referral Center (BARC) in Edmonds WA is now enrolling patients in the study. Please contact the clinic to inquire about the enrollment criteria and to make an appointment.
Call (425) 697-2272
Washington State University Veterinary Teaching Hospital in Pullman WA is enrolling patients with osteosarcoma.
The treatment option includes VAX + Radiation therapy.
Call (509) 335-0711
Contact info@ccralliance.org if you have any questions.
Best Wishes,
Dr Andrew
P.S. Osteosarcoma is so difficult to treat – in practice there are so few options, and unfortunately it has almost always spread by the time it is diagnosed. So good to see potential alternatives.
Can you please advise on preventing protocol dosing?
Hi, in the case of fast moving cancer has anyone done more then the 3 days of Panacur for their dog? Anyone done a week straight?
Thanks!
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
Hi for the daily option,
Is it 200 mg per 10lb?
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
After watching the video it looks like the daily low dose option would be about 2mg/lb. I am quite unsure, though, if this is a low dose treatment option or meant as a low dose maintenance (after cancer is gone). That would equate to 20mg/10lb. I have seen mentioned the daily cancer fighting option reduced to about 200mg a day and I believe that is regardless of weight because some animals may not tolerate it well given in the larger dosages.
what about horses? I have an approx 900 lb horse with a large lesion ( sarcoma ? ) below his anus.
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
If there’s a Panacur for horses it is better to have that.
Hi, my female Doberman has a mammary tumor that has grown little by little for about a year. Would this protocol help with that? She’s around 80lbs so how much should be given and how often? Thank you!
Yes, it would definitely help. Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.
Can a 22kg dog taking Panacur also take a Iramine antihistamine and some turmeric? Thanks
Yes, it is safe as there are no other medication contradicts Panacur
Is is safe to give the dosage for 3 days on/4 days off for a returning hemangiosarcoma?
Yes it is safe
Thank you very much!
Greetings all and thank you for the light at the end of the tunnel Dr. Jones!
my 9.3 pound cat was diagnosed with lymphoma and her liver. she is currently on steroids, gabapentin, a series of appetite stimulants, and denamarin. This is the fourth day on the prednisolone and day seven for everything else. In your opinion, should I discontinue everything else or keep her on some? i’m getting ready to order the panacure and I’m not sure how long it will take to arrive. I ordered some apricot seeds and oil today that should be delivered tomorrow and I am not even sure what kind of dosage to use with those… this is so disheartening to watch my baby waste way. Please help?
Barbie
So if I am reading this correctly ( to be sure before giving dose to my pet)
At 130lbs of body weight, I will be administering the entire tube in one dose? I am using the 23g/100mg package of paste. And then 1 entire package each day for 3 days on 4 days off.
How much Panacur liquid for a 7 lb. Cat at the high dose, 3 days on 4 days off. How much for low dose continually?
I thought about 1.75 ml? Would that be right? Thank you
Here is Dr. Jones’ advice on Panacur (Fenbendazole) for cancer:
The regimen for cancer is 50 mg/kg of body weight (or 23 mg per lb), once daily for 3 days on / 4 days off.
If Panacur (Fenbendazole) is in liquid form, it has a concentration of 100 mg/ml. For example, a 50 lb dog would receive 11.5 ml (1150 mg) per day for 3 days on / 4 days off.
If Panacur is in the form of granules or packets (222 mg/g), a 50 lb dog would get 5 granules, or 5 of the 1 g packets (5 g total).
If giving Panacur in paste form (100 mg/g), a 50 lb dog would receive 11.5 grams of Panacur.
Dr Jones suggests trying this for a month to see if your pet will respond.