The union has produced campaign materials such as posters, badges, window stickers and flyers, bearing the strapline ‘Fair Treatment for NHS Pensions’.
The BMA has also launched an online campaign toolkit to encourage doctors to use the press and social media, such as Twitter and Facebook, to express their concerns.
Although the government consultation on increased contributions has closed in England and Wales, GPs in Scotland and Northern Ireland are encouraged to continue to take part in the ongoing consultations in their respective nations.
Around 9,000 responses were submitted to the England and Wales consultation, the majority of which are thought to have come from doctors and medical students.
BMA chairman Dr Hamish Meldrum said: 'It is only three years since NHS staff agreed to major changes to their pensions. Yet under the current proposals – despite the recent announcement – most NHS staff would pay much more and work longer for a much worse deal on retirement.
'The fact is that the NHS pension scheme is not only sustainable in the long term – it is currently delivering very significant sums to the government.’
Earlier this week the BMA welcomed the government's offer to increase the cost ceiling of public sector pensions and protect those within 10 years of retirement from future changes.
Despite this concession the proposed pension scheme would still be detrimental to doctors, seeing them working for longer and receiving a ‘much reduced pension,’ the union said.
Under the new proposals many younger doctors would have to pay more than £200,000 extra for their pension over their working lives, the union added.
Dr Meldrum concluded: ‘These plans aren’t about the affordability of the current scheme - they’re about the Treasury looking for a quick hit on public sector workers.’