I Am Under Medication For Pcos And Infertily I Have

I am under medication for pcos and infertily I have been prescribed siphene 100mg/day +metformin750mg/day and I am asked to take inj foligray 75mg from my 5th day until 9th day.Is it ok if I can take any other brand with the same composition(Urofolliculin) as of my prescribed injection like ovitrop 75?and what could be the possible side effects of this.and 9th day I am asked to visit the clinic probably for scan what would be the next steps following this?