Common poisons to dogs:
Slug pellets – seizure within 10 minutes
Anti-freeze – causes kidney failure – symptoms will be sickness and weight loss
Chocolate – causes kidney failure (dark chocolate the worst)
Rat poison – causes haemorrhage/internal bleeding/bruising on gums and body.
Grapes /raisins/currents – causes kidney failure
Ibuprofen & Diclofenac – HIGHLY POIONOUS TO DOGS
Onion/garlic/blue cheese/macadamia nuts also poisonous to dogs.