Myo-inositol, either taken alone or in combination with D-chiro-inositol (in a ratio of 40:1) may improve insulin sensitivity, reducing testosterone levels and regulating menstrual cycles. There is no evidence to suggest that you are not able to take inositol with CoQ10. Due to the similar structure to vitamin K, it is not advised to take alongside anticoagulants (blood thinners), such as warfarin.