As Guys Fawkes night approaches, we tend to see an increased volume in calls regarding fireworks and sparklers
Fireworks are a class of low explosive pyrotechnic devices that contain many different ingredients; in most cases, the exact composition of ingested fireworks is unknown. Most domestic fireworks, used or unused, do not contain sufficient chemicals to cause more than mild, self-limiting gastrointestinal upset. There is a potential risk of metal toxicity, but this is rare. Professional display fireworks are more of a danger to animals, and can cause more significant signs.
Sparklers will generally only cause gastrointestinal upset also; toxicity is not expected as the quantity of chemicals present is small. There is also a risk of burns from recently used sparklers or fireworks.
Most animals can be observed at home, although the Animal PoisonLine/Veterinary Poisons Information Service can advise on specific treatment for animals with clinical signs.