He is expected to set out his concerns in a House of Commons debate.
World leaders are working on a treaty which is due to be finalised by May next year, with talks overseen by the United Nations World Health Organisation (WHO).
A draft text has already been published and it requires every country that signs the accord to allocate “not lower than 5 percent of its current health expenditure to pandemic prevention, preparedness, response and health systems recovery,” which in the case of the UK would mean £9 billion.
It would also require signatories to set up global supply chains for equipment and medicine to fight future pandemics and to draw up plans to educate the public about pandemics and their effects.
