<p>The Ben Cao Gang Mu explains, &ldquo;Rong Yan Tang is indicated for urinary stoppage. In this formula, use a Wan of Rong Yan as big as a pellet, half Jin of Fu Ling, 2 Liang of Bai Zhu and cook all the ingredients in water.&rdquo; The Jin Gui Yao Lue explains the same thing. According to Jin Gui Yao Lue, Rong Yan Tang is indicated for inhibited urination, rather urinary stoppage. The former means there is still urination though the amount is insufficient, whereas the latter indicates there is no urination.</p>

<p>This formula is in fact indicated for inhibited urination and not urinary stoppage. The Jin Gui Yao Mue and Ben Cao Gang Ben have the same problem. When the Jin Gui Yao Lue (or Jin Gui Yu Han Fang) cites formulas from other books, it normally cites from unnamed books without the cooking method. If the book is unknown, the treatment remains the same. If, however, the cooking method is omitted, this influences the effectiveness of formulas.</p>
