Trusted veterinary advice and products

PROGRAM ORAL SUSPENSION is used for the prevention and lasting control of flea infestation in cats. It is effective against the two dominant flea species in the UK.







Prescription Type

AVM-GSL (OTC licensed veterinary medicine)

Be the first to review this product

Reference : 6758614
Delivery Between 2 and 3 days
  • Description
  • Properties
  • Packaging
  • Ingredients
  • Directions
  • Legal notice
  • Customer Reviews

What is Program oral suspension and who is it for?


PROGRAM ORAL SUSPENSION is a convenient and long acting flea treatment that can be used in weaned kittens and cats, including pregnant queens. It is effective against the dominant flea species: Ctenocephalides felis and C. canis.

PROGRAM works by preventing flea larvae from developing in the egg, thereby preventing any existing fleas from reproducing.

Monthly use in all cats and dogs in the house will help to maintain a flea-free home, however, if there is an exisiting infestation or a new source of fleas, a concurrent treatment against adult fleas should also be used.


The most up to date Summary of Product Characteristics for this authorised veterinary medicine can be viewed here

What is the active ingredient in Program oral suspension?


Lufenuron, the active ingredient in PROGRAM, is an insect growth regulator belonging to the benzolyurea group which acts by interfering with the normal synthesis, polymerisation and deposition of chitin.


What does this ingredient do?


Fleas take up the active ingredient through the animal's blood and transfer it to their eggs. The formulation of larval chitin structures, a process typical to insects is blocked and the development of their numerous offspring is stopped. 

Fleas picked up by the cat outside the home environment are prevented from causing a new infestation of the home.

After administering orally to the cat, the active ingredient is quickly absorbed. Sufficient absorption is only achieved if administered on a full stomach. The low excretion rate ensures an effective concentration of the active ingredient in the blood for one month. If the cat is already infested with fleas, no viable flea eggs are produced from 24 hours after the first administration. The speed of elimination of the pre-existing infestation is dependent upon the number of flea larvae and pupae in the environment when treatment starts and climatic conditions. 

To prevent flea infestations the product should be administered at monthly intervals for at least six months during the flea season, starting two months before fleas become active. To ensure accurate dosing, cats should be weighed before treatment. 

Program does not kill adult fleas. The product works by preventing the development of flea larvae. If cats have a high level of flea infestation at the start of the treatment, it is necessary to apply a product that is recommended for use against adult fleas during the first one or two months, or longer depending on the environmental challenge.

Box of six ampoules, each dispensing 3.8g suspension, packed in a sealed aluminium foil sachet.

What is in Program oral suspension?


Active ingredient:

Lufenuron 266mg/ampoule


Methyl parahydroxybenzoate 4.56mg/ampoule
Propyl parahydroxybenzoate 1.14mg/ampoule

Avicel RC 591 (Microcrystalline cellulose with Carmellose Sodium)

Water Purified

How do I use Program oral suspension?


  1. Give cats over 4.5kg the content of 1 ampoule once monthly.

  2. To be fully effective the suspension MUST be administered together with food.

  3. Shake the ampoule prior to opening. To open the ampoule first hold the base tab (which has writing on it) and flick the pack. Then twist off the top portion and squeeze the ampoule several times to administer the suspension.

  4. The suspension should be added to approximately half of the food ration. The rest of the food should be presented when all the dose has been eaten.

  5. If several cats are treated, ensure that each cat is fed individually.

  6. The product can also be administered by squeezing the suspension directly from the ampoule onto the back of the cat’s tongue after feeding.

It is essential that all cats and dogs (except unweaned puppies and kittens) living in a household are treated to stop flea reproduction.

For dogs use program tablets.


Special precautions for use in animals:

The product should not be used in kittens which are not fully weaned or kittens weighing less than 0.5Kg bodyweight.

Special precautions to be taken by the person administering the medicinal product to animals:

Avoid contact with skin and eyes. If contact occurs wash the affected area with clean water immediately. Seek medical attention if irritation persists. Wash hands after use.


On very rare occasions, malaise, itching, vomiting or diarrhoea have been reported in cats following treatment with Program Suspension

 Do not store above 25oC

Shake the ampoule prior to opening.


Marketing Authorisation holder:

Novartis Animal Health UK Ltd
Frimley Business Park
GU16 7SR

Marketing authorisation number:

Vm 12501/4019

Other products