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You can switch to another pill brand after the present pack gets over.It may be possible that you do not exhibit irregular bleeding and spotting with the other brand.But most of them do cause such effects.You can also discuss with the Gynaecologist regarding other contraceptive options as IUD,Deposhots and can use them also if required.
It cannot be commented whether you would have the present symptoms with any particular brand or not.
Take care!