The NI Chest Heart & Stroke believes they should only be used by adult smokers who have tried other methods to help them quit, and even then only as a short-term option.Andrew Dougal from the charity said: "E-cigs contain nicotine which is a most powerful drug. It is more addictive than even heroin."England is set to impose a ban on the sale of e-cigs to under-18s. Adults who buy them for children could face a fixed penalty of £50 or up to £2,500.It comes as the Government announced plans to amend the Children & Families Bill in relation to legislation to combat young people smoking.Mr Dougal went on: "In the interests of the efficient and effective management of legislation the Northern Ireland Executive and Northern Ireland Assembly might choose to utilise this bill to enforce these safeguards in Northern Ireland at a much earlier time."In all four legislative bodies in the United Kingdom a common aim is at all costs to protect the health of our children and of generations to come."