Delete the '#' characters from the query before execute it:
select prod.product_name,
prod.product_description,
prod2.product_name,
prod2.product_description
from tblproducts prod inner join tblsuggestedproducts sugprod on (prod.product_id = sugprod.product_id)
inner join tblproducts prod2 on (prod2.product_id = sugprod.suggestedproduct_id)