Send This Page to a Friend Find Related Pages Parasitic worms can and will infect all types of horses and ponies. It is not possible to eradicate worms from the body system completely and permanently, so regular dosing with an appropriate anthelminthic is necessary. The easiest method to use, and be sure of administering a full dose, is a proprietary syringe which contains the dose in a paste form.
Dosage is determined by the horses body weight.
Although frequency of dosage should follow the manufactures recommendations you also need to consider the cleanliness of the pasture. Horses and ponies should be dosed in summer and autumn because this is when parasite activity is highest. The effectiveness of the worming medication varies depending on the type of parasite and also depending on the stage of the life cycle. Worms can develop resistance to drugs, if the same one is used continuously. A worming program should be carried out along with good pasture management to minimize the infestation on the ground.