Razor Equine Wormer By Virbac Razor Equine Wormer Is A Multi Dose Syringe Broad Spectrum Worm Which Is Perfect For Owners With More Than The One Horse. A Unique Formula Which Is Effective On All Equine Internal Parasites Including Every Type Of Tapewormers And Bots. Razor Is Perfectly Safe To Use On Foals, Pregnant Mares And Breeding Stallions. Using The Combination Of Ivermectin And Praziquantel It Is Effective Against Wormers, Bots, Lungwormers, Threadwormers And Tapewormers. A Smooth, Palatable Flavour Your Horse Will Love With The Added Benefit Of It Being Developed And Made In Australia. Razor Equine Wormer Is Given Orally At The Recommended Dose Of 1/Ml Per 100Kg Bodyweight.