Avitrol Bird Mite And Lice Spray cone de Veterinrio Generic Circular Freepik. A convenient and broad spectrum bird wormer which controls thread, caecal, round, gape, gizzard and important tape worms in caged birds. Avitrol Plus syrup can be added to the drinking water, or dosed directly to the bird's beak. Avitrol tablets provide a secure method of dosing individual birds. DOSAGE AND ADMINISTRATION: Administer orally directly into the throat at the rate of Levamisole hydrochloride 40mg Kg bodyweight and Praziquantel 8mg Kg bodyweight, as follows: 250 to500g bodyweight. tablet. 500 to 750g body weight 1 tablet. 750g to 1Kg bodyweight. 1 tablets.