How do I buy prescription medication?

Specific (VetXX) FSD & FSW Struvite Dissolution Cat Food

Specific (VetXX) FSD & FSW Struvite Dissolution Cat Food
Wet » 28 x 100g Alutrays

  • Special Offer Wet » 28 x 100g Alutrays £28.00


Specific FSD & FSW Struvite Dissolution is complete and balanced diet which, due to the reduced amount of magnesium and phosphorus, is especially composed to help with the prevention of struvite stones and crystals in adult cats.The precipitation of struvite (magnesium ammonium phosphate) in the lower urinary tract is promoted by high concentrations of magnesium, ammonium and phosphorus in the urine and an alkaline urinary pH. Struvite Dissolution also induces a low pH, which will prevent the formation of struvite.

Omega fatty acids EPA and DHA are present to help support a healthy skin and coat for the cat.


  • Struvite dissolution - The diet has a reduced content of magnesium and phosphorus (components of struvite crystals) for dissolution of struvite stones and reduction of recurrence of struvite crystals and stones
  • Urine pH control - A urine pH at 6.0 – 6.3 dissolves existing struvite crystals and minimises the risk of precipitation of new struvite crystals
  • High urine volume - The increased sodium content promotes that the cat will drink more. This is associated with reduced urinary mineral concentrations and increased urinary frequency
  • Skin, coat & joint support - EPA and DHA are both omega-3 fatty acids with a beneficial effort on the maintenance of healthy skin, coat and joints



Maize protein, animal fat, maize starch, eggs, potato protein, rice, fish meal, wheat, minerals, vitamins and trace elements, powdered cellulose, hydrolysed chicken and turkey protein, methionine, sunflower oil, taurine.

Antioxidant: EC approved additives: BHA, BHT, propyl gallate. It contains no artificial colours or flavouring.


Pork, beef, fish, maize, sunflower oil, eggs, minerals, fish oil, yeast, ammonium chloride, rice, powdered cellulose, psyllium husk, vitamins and trace elements, taurine.

It contains no artificial antioxidants, colours or flavouring.



Nutrient Contents
per 100 g
per MJ
Energy kJ 1955
Protein g (crude) 30 15.3
Fat g (crude) 26.4 13.5
Carbohydrate g (NFE) 26.6 13.6
Fibre g (crude) 1.4 0.7
Calcium g 0.55 0.28
Phosphorus g 0.45 0.23
Magnesium g 0.06 0.031
Sodium g 0.78 0.4
Omega-3 fatty acids g 0.37 0.19
Ratio n-3:n-6 01:06:00 01:06:00
Water g 8


Nutrient Contents
per 100 g
per MJ
Energy kJ 547
Protein g (crude) 10.6 19.4
Fat g (crude) 8 14.6
Carbohydrate g (NFE) 4.1 7.5
Fibre g (crude) 0.6 1.1
Calcium g 0.15 0.29
Phosphorus g 0.13 0.24
Magnesium g 0.014 0.026
Sodium g 0.25 0.46
Omega-3 fatty acids g 0.3 0.55
Ratio n-3:n-6 01:07:00 01:07:00
Water g 75.4

Feeding guidelines

The daily individual requirement may vary depending on factors such as breed, environment, season, activity etc. It is therefore advisable to continue monitoring condition and body weight, adjusting the amount fed accordingly.


Weight of cat Lean Moderate Fat
1kg 20g 15g 15g
2kg 35g 30g 25g
3kg 45g 40g 30g
4kg 55g 50g 40g
5kg 70g 55g 45g
6kg 80g 65g 50g
7kg 85g 75g 60g
8kg 95g 80g 65g
9kg 105g 90g 70g
10kg 115g 95g 75g
11kg 120g 100g 80g
12kg 130g 110g 85g


Weight of cat Lean Moderate Fat
1kg 70g 60g 50g
2kg 120g 100g 80g
3kg 165g 140g 110g
4kg 205g 170g 135g
5kg 240g 200g 160g
6kg 280g 230g 185g
7kg 310g 260g 210g
8kg 345g 285g 230g
9kg 375g 315g 250g
10kg 405g 340g 270g
11kg 435g 365g 290g
12kg 465g 390g 310g

Recommended for

Temporary diet for the dissolution of struvite uroliths.

Not recommended for

  • Urolithiasis due to calcium oxalate, ammonium urate or cystine
  • Simultaneous administration of urinary acidifiers
  • Metabolic or renal acidosis
  • Heart failure, hypertension and oedema
  • Kittens and pregnant or lactating queens

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products, such as Insulin, are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. The majority of light weight orders (less than 1.5kg) can be delivered for a flat rate of £10. For an accurate estimate of the delivery charge, please put the items you require in your basket and use the "Estimate Delivery" system on the shopping basket page (you only need to enter your country and postal/zip code) for a quick quote. For deliveries to the USA you may need to go to the checkout page and enter your full address to get a quote (as some services need your state in order to quote too). For more information on international deliveries, please see our delivery information page.

Delivery of aerosols

Due to air freight restrictions aerosols cannot ever be sent abroad by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as insulin and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (2)

Q & A

There are currently no questions for Specific (VetXX) FSD & FSW Struvite Dissolution Cat Food - be the first to ask one!