Corvental-D Capsules for Dogs

Corvental-D Capsules for Dogs
100mg » Priced per Capsule

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  • 100mg » Priced per Capsule £1.52
  • 200mg » Priced per Capsule £2.00
  • 500mg » Priced per Capsule £3.86

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Corvental-D capsules are given to dogs to treat congestive heart failure and bronchitis. Most commonly they are prescribed by vets for chronic wheezing and coughing associated with lower airway disease, which is more common in small terrier breeds of dog. A significant improvement in respiratory function can be seen.
Treatment is normally given once daily with food. Dogs to be treated should be weighed so that an accurate dose of Corvental-D can be calculated and given.

Corvental-D is a slight stimulant to the nervous system and can be associated with restlessness and excitement if overdosed. It is sometimes advised not to give Corvental-D immediately before a general anaesthetic. If vomiting occurs, the dose should be reduced in future, or treatment should be stopped.

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Medication Datasheets

Reviews (7)

Summary of Reviews for Corvental-D Capsules for Dogs

Overall 5
Ease Of Use
Value For Money
Absence Of Side Effects
7 out of 7 (100%) customers would recommend this product.
5 stars (6 reviews)
4 stars (1 reviews)
3 stars (0 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Corvental-D Capsules for Dogs
Verified Purchase

By on 15 June 2017

My 13 year old Lakeland terrier has been diagnosed with long term bronchitis causing constant coughing, both distressing for her and for us. Since taking corvental she has improved enormously and coughs very little. We are so relieved and very pleased with the relief it has given her.

Customer recommends this product

55 Drugs for the dog
Verified Purchase

By on 1 August 2016

we were recommended to order the tablets on line to save money, by our vet. They seem to work, and are a good price.

Customer recommends this product

55 Corvental D
Verified Purchase

By on 2 July 2016

Exactly the same product that I used to buy direct from the vet only, a lot cheaper.

Very pleased.

Customer recommends this product

55 Beneficient medication
Verified Purchase

By on 4 May 2015

Siggy has been taking Corvental for several years he is an old dog and it seems to have prolonged his quality of life. Purchasing from VioVet has been easy and very cost effective.

Customer recommends this product

55 corvental ~D
Verified Purchase

By on 16 March 2015

very good medication helps my dog breath he has westie lung disease
no reservations about using this it works i would recommend this to anyone

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Corvental-D Capsules for Dogs, including answers from our team.

13 July 2021 at 6:36pm


Lucy G

Can the capsule be opened and put directly onto the food as my dog is so fussy taking pills - he won’t have them in any food I.e cheese etc and he sniffs them out in his bowl?

If not any suggestions on how to get dogs to swallow them?

  • VioVet Staff

I have contacted the manufacturer who have advised the following:

Can I split the

The capsule is gelatine and contains small spheres. It is the spheres
themselves that provide sustained release of the active ingredient and
so the gelatine. Therefore, it may be split to
obtain an accurate dose; the capsule pulls in half relatively easily.
We have no specific data on the
administration of the product when sprinkled onto food.  The client
would need to be advised to only offer a small amount of food and ensure
the whole dose was eaten. 
It would be wise to avoid getting the spheres too wet.

21 June 2021 at 8:01pm

Laryngel paralysis


Will this medicine help my dog with Laryngel paralysis, which is affecting his ability to run without gasping for breath and in hot weather causing distress for him and also us. If you know of another medicine you supply which would be more effective please let me know. Appreciate your help. Bev

  • VioVet Staff

This medication helps reduce the physical response of coughing. Laryngeal paralysis is a weakness in the larynx itself and so Corvental is unlikely to help in this instance. I strongly advise discussing treatment for this with your vet. If the signs are this severe then surgical intervention to 'tie back' the larynx may be the best approach.

11 May 2021 at 8:59pm

Corvental d


is there a cheaper alternative to corvental D

  • VioVet Staff

There is no alternative brand to Corvental D, which contains Theophylline. This is the only version available on the veterinary market.

12 February 2021 at 5:42pm



would it be advisable to start/try Serrappeptase tablets with Corvental-d?

  • VioVet Staff

Corvental is a prescription only medication so I strongly advise running any treatments past your vet before adding anything new to their treatment protocol. Serrappeptase is an enzyme that anecdotally reduces inflammation in certain diseases, however there is no solid evidence yet to say whether it is safe for use in our pets or whether it does/doesn't do this.

8 October 2020 at 1:16pm

Can I use Turmeric?


Would there be a problem with giving our elderly border collie Canine Gold, which contains turmeric, along with Corvental-D?

  • VioVet Staff

Corvental-D is safe to use alongside supplements, such as Canine Gold. The ingredients are different and should not interact.

8 August 2016 at 5:00pm

Corvental OD

Sue Ferguson

  • VioVet customer since 2016
  • From: Merseyside, United Kingdom

My 41.6kg male labrador has accidentally had 2 500mg capsules today 12 hrs apart. Breakfast and supper. (Stupid humans). Will get be ok? Called vet. No reply vet. Receptionist said they would call back ...

  • VioVet Staff

Hi Sue,

Please accept my apologies for the delay in our response, I really hope that you have heard back from your vet in the meantime and your dog did not experience any side effects.

Normally, the maximum recommended dose per kg of bodyweight is 20mg. With each 500mg tablet, your dog receives approximately 12mg/kg, so if he had been given 2 x 500mg in one go he would have received 24mg/ that day, which is slightly over the recommended maximum. The fact that he received the 2 capsules 12 hours apart would have reduced the chances of exceeding this maximum dose, because his body would have already started to eliminate the drug (usually, about half of the amount is eliminated within 8-9 hours).

If this happens again I would again contact your vet for advice and watch out for the following signs and take him to the vet if you are concerned: restlessness, agitation, excitement, twitching, vomiting, diarrhoea, excessive thirst, sedation, reduced appetite and excessive volume and frequency of urination.

I hope this has been helpful.

Kind regards,


29 January 2014 at 8:47pm

Side effects

Carol Cunningham

My dog almost died after being prescribed corvental -D 200mg capsules for a cough. He developed a dangerously high temperature, stopped eating and appeared to be depressed and losing the will to live. After a week on the medication, luckily my husband and I rushed him back to the vet where he was given a series of antibiotics. We do believe if we had not taken our dog back to the vets when we did he would not be here today. Like us humans dogs are individuals and may react differently to prescribed drugs. Why sell such a medication which could possibly do much more harm than good and possibly be fatal, to our four legged friends who cannot complain of the side effects, and whom have to rely on, in my dogs case, his vigilant owner before it was too late for him?

  • VioVet Staff

I am sorry to hear about your dog. I think you should talk to your vet about the possibility of the Corvental causing the problems. If this might be the case, then there is an official reporting mechanism for suspected adverse reactions to veterinary drugs. These should be reported to the Veterinary Medicine Directorate so that they can be looked into. If a drug is thought to be causing trouble, it will be withdrawn from the market. Please go to to report this very easily on the official website. If you have any trouble with this, email [email protected] and we will help you. However, the truth is that Corvental is unlikely to cause a high temperature or the other symptoms you describe. A chest infection on the other hand could easily do so. The fact that you mention your vet giving antibiotics suggests that your vet thought an infection was involved. If this is the case then it is possible that the Corvental was of no benefit, but it is unlikely to have been the cause of your dog's illness. I wonder what the initial diagnosis was when your dog went onto Corvental and if this diagnosis could be questioned. Again these are matters for your vet.

On a more general note, any individual could potentially react to Corvental, especially if accidentally overdosed. This is true of all drugs. Some drugs are more likely to cause harm than others, but no drugs should ever be given if the risk outweighs the possible benefit. In your case it seems that the antibiotics helped your dog, but on another day a different dog could react badly to that same antibiotic. How then would dogs like yours be treated? We need drugs, but should use them carefully and appropriately. A correct diagnosis is also vitally important, or the drugs do not have a chance to work. Then an appropriate treatment plan has to be started. That is where the skill of your vet comes in, but withdrawing drugs too readily might cause a lot more harm than good. Please do report the matter to the VMD if you feel that would be helpful, but talk to your vet first.

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