How to auto populate text from a drop down list selection in MS Word

I have a table/form in word where I have a drop down menu in one column. I
would like other columns to be automatically completed based on the item
selected in the drop down menu. i.e. if you select Product 1 (in the column
with the drop down), I want the product description to auto-fill in the next
column, the product cost to auto-fill in the next column, etc.

Any ideas on how to do this?