I think she means the caped ones which is do able but you got to be measuring half and half the powder. It might be a better option taking 12.5 a day or close to it then how it s being done now. Another thought is you could do that but alternate the days for example
Day 1 12.5 mg winny
Day 2 12.g mg proviron
Day 3 12.5 mg winny
Day 4 12.g mg proviron
etc...