I took Dutasteride and have had a massive hair shed in the first 2 weeks

Dutasteride is not approved by the FDA for hair loss.  Documentation about such sheds is not available except in the hands of the doctors who prescribe it in what is called an “off label” circumstance. I am sure that it behaves like Finasteride, which suggests that the shed should reverse in 2-3 months. This patient should go back to the doctor who prescribed it and ask him/her what to expect. I hope that this drug was not purchased “over the internet” because the drug may not really be what he expected he was purchasing.