I can suggest 3 solutions (the first one is the better) :
1) Design your page to have 2 columns. Then use a table for the labels and define a TBS block in that table. At the PHP side, simply merge records on the TBS block, they will fill the page in the two columns automatically and then continue on more pages if needed.
2) Design a table with 2 columns and one row. Then at the PHP side, merge the record using the TBS serial display mode (parameter serial).
3) Design a table with 2 columns and one row. Then at the PHP side, rebuild your recordset in order to have two original record for one record on the new build.