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Zycortal Zycortal Zycortal
4ml Bottle for Injection (25mg/ml) 4ml Bottle for Injection (25mg/ml) 4ml Bottle for Injection (25mg/ml)

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  • 4ml Bottle for Injection (25mg/ml) £67.99


Zycortal is a new treatment for Addison's disease (hypoadrenocorticism) in dogs. It is given by injection at approximately 1 month intervals. The precise dose and frequency is calculated by your vet in response to blood test results and clinical assessments made durong the initial phases of treatment.

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:00am - 6:00pm
  • Sat: 9:00am - 1:00pm
  • Email: [email protected]

All prices include VAT where applicable.

Medication Datasheets

Delivery Information

Reviews (47)

Summary of Reviews for Zycortal

Overall 5
Ease Of Use
Value For Money
Absence Of Side Effects
47 out of 47 (100%) customers would recommend this product.
5 stars (39 reviews)
4 stars (7 reviews)
3 stars (1 reviews)
2 stars (0 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

55 Max
Verified Purchase

By on 2 January 2020

Life saving

Customer recommends this product

55 highly recommend
Verified Purchase

By on 4 October 2019

exactly the same product as supplied by the vets, just at a much better price, we buy it and the vet injects it.

Customer recommends this product

55 Exactly what I ordered and needed and arrived exactly when you said it would, completely satisfied!
Verified Purchase

By on 5 June 2019

Exactly what I needed and ordered and the price is wonderful!

Customer recommends this product

55 Zycortal liquid injection for treatment of Addison’s disease
Verified Purchase

By on 7 May 2019

Poppy responds well to this treatment, having injections every 5 weeks. Viovet price means that keeping Poppy healthy is more affordable for us.

Customer recommends this product

55 Zycortal
Verified Purchase

By on 24 April 2019

Excellent product, reliable company (Viovet) fast shipping.

Customer recommends this product

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Q & A

Below are some recent questions we've received regarding Zycortal, including answers from our team.

16 May 2017 at 2:58pm

Shelf life

Abigail Newell

  • VioVet customer since 2009
  • From: Hertfordshire, United Kingdom

Can you tell me the shelf life of a 4ml bottle of Zycortal please. Thank you.

  • VioVet Staff

Shelf life of the veterinary medicinal product as packaged for sale: 3 years

Shelf life after first opening the immediate packaging: 120 days

8 June 2016 at 12:29am

Syringe and needle

Cathy Forrester

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

Does the syringe and needle come with it or do I need to buy them separately. Thank u.

Also can you tell me how I go about sending the pricrption. Can I send it by recorded delivery and where do I send the pricrption to.

Sorry this is the first time I'm ordering a pricrption drug online so I'm not quit sure how to go about it.


  • VioVet Staff

This product is just the liquid for injection, there are no syringes or needles supplied. It is normally administered by a vet who will have such things to hand anyway. If your vet considers that you can administer this yourself, he/she should give you full instruction on how to do this. Some vets will provide the prescription so that you can buy the medication more economically, then you can take it to the veterinary premises and a nurse or vet can inject it for you for a nominal fee. This depends on the individual vets. If you are to inject this yourself, you can buy syringes and needles from the website. (A 21g x 5/8" needle is normally used on a 1ml or 2ml syringe, depending on the dose to be given.) Personally I would be very wary of you giving the injection yourself unless you have proper training or experience to do this, but that decision is down to the vet writing out the prescription. Some people are giving the injections very successfully thensleves (just as they are for diabetic dogs).

Once you have a written prescription from your vet, you can scan it in and email it to us, or take a photo of it with your mobile phone and email that to us.You can fax it or upload it to the website when placing the order, or you can post it to us. The possibilities are endless! Details are all on the website. When we receive a copy of the prescription we might well ring your vet just to check that all is well before we supply against it. Your simplest option is to email it to us using [email protected]