Its analgesic effects are only partially reversed by naloxone, hence indicating that its opioid action is unlikely the sole factor; tramadol's analgesic effects are also partially reversed by Î±2 adrenergic receptor antagonists like yohimbine and the 5-HT3 receptor antagonist, ondansetron.
Array formulas in versions before Excel 2007 cannot handle whole-column references. In Excel 2007, array formulas can handle whole-column references, but this forces calculation for all the cells in the column, including empty cells. This can be slow to calculate, especially for 1 million rows.
1 You cannot use multi-cell array formulas in Excel tables.  You should enter a multi-cell array formula in a range of cells of the same size as the resulting array returned by the formula. If your Excel array formula produces an array larger than the selected range, the excess values won't appear on the worksheet.