For the treatment of Levamisole Sensitive Large Roundworms (Ascaridia galli), Caecal worm (Heterakis gallinae), and Hairworm (Capillaria spp.) in fowls, turkeys and other food producing birds. All birds can pick up worms during their lifetime, which is why it's important to worm them. If your bird contracts worms they might suffer from diarrhoea, weight loss and weakness. In extreme cases it can also result in the death of your chicken or turkey. How to Use 1. Administer this product in the drinkers that the birds are accustomed to using and check that all the drinkers are working properly. 2. Avoid treating on a day when normal normal water consumption of a flock might be reduced by sudden drop in temperature. 3. This product will not affect the growth rate or egg production of the birds. Nor will it affect the fertility or the hatchability of eggs when used in accordance with directions. For maximum efficiency against worms, the drinking water medicated with Aristopet Wormer for Poultry must be consumed in the shortest possible time. Water should be withheld from birds 2 hours before nightfall.The required amount of medicted water is then made available, so that the birds can then start drinking it at daylight or when the lights are turned on. Replace the medicated water with fresh water as soon as it is all consumed or after 8 hours. Treat boilers or other chickens raised under continuous lighting by withholding drinking water for 1 hours in summer or 2 hours in winter and then give medicated water as above.