Tea Tree oil - this includes: tea tree shampoo, tea tree oil, tea tree sprays and anything tea tree. This can be fatal in as little as one dose or application. It causes renal, liver and complete organ failure.
Ivermectin (Injection, Oral or Topical) - This can be fatal in as little as one dose or application.
Polysporin and Neosporin Pain Relief or Extra Strength - Regular original Polysporin is safe to use. Any other formulas are toxic.
Read the labels on the food and avoid them if the products contain any of the following:
Ethoxyquin
BHA (butylated hydroxyanisole)
BHT (butylated hydroxytoluene) -"Toxic" may not be the right word here, but the following artificial preservatives in pet food are suspected to cause serious health issues in animals including cancer, kidney disease, birth defects, liver disease, and so on.
Toxic plants
[You must be registered and logged in to see this link.]Cedar Shavings or anything with Cedar in it