A radical breakaway from NHS pensions, recommended by an external review, is being considered by the Manx government.
It is feared that changes could cost NHS staff thousands of pounds and extend their retirement age by five years.
The island could face a disastrous exodus as nine out of ten consultants are recruited from the UK.
The BMA are strongly opposed to the proposed changes.
BMA council chair Dr Hamish Meldrum said the move will be a disaster for the island’s health services.
‘Attracting suitable qualified clinicians to work in the Manx Health Service if an inferior pension scheme is on offer would become very difficult indeed,’ he said. ‘The Manx public deserve better.’
Claims that the changes would represent value for money have been rejected by the BMA who believe the new scheme would incur high actuarial and consultancy fees.