It was revealed yesterday the immunisation programme had been halted days after its launch by First Minister Alex Salmond because Muslim parents were not told the vaccine contained pork gelatine.
In England, the Fluenz vaccine attracted criticism just a fortnight ago for the same reason, sparking accusations of insensitivity to Muslims, Jews and vegetarians, and concerns over the lack of information to parents.
It is understood Glasgow-based parents only became aware when family members in Leicestershire informed them of the criticism and concerns there over the use of the vaccine.
The parents in Scotland then alerted staff at Glendale Primary school in Pollokshields, which resulted in the postponement of the scheme.
It has also emerged that in 2003 the NHS injected hundreds of Muslim babies in the Glasgow area with a derivative of pork used in one of the two triple measles, mumps, and rubella (MMR) vaccines used by GPs, sparking angry reaction from Muslim leaders.