JSFiddle - React, Tailwind, and code Playground

HTML

<body>
         <table class="narr_table">
                    <tbody>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD5057943812" class="Bold">Additive C1sj</span>
                            </td>
                        </tr>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD5057936097" class="Bold">aspirin</span>
                                <br>
                                <span id="MEDSIG5057936097">, 125 mg, twice daily</span>
                            </td>
                        </tr>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD5057935161" class="Bold">aspirin</span>
                            </td>
                        </tr>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD5058046867" class="Bold">aspirin</span>
                                <br>
                                <span id="MEDSIG5058046867">325 mg, orally, Daily</span>
                            </td>
                        </tr>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD189600670" class="Bold">aspirin</span>
                                <br>
                                <span id="MEDSIG189600670">600 mg, twice daily, As Needed, anxiety</span>
                            </td>
                        </tr>
                        <tr class="narr_tr">
                            <td>
                                <span id="MEDPROD5057940142" class="Bold">aspirin</span>
                                <br>
                                <span id="MEDSIG5057940142">1,300 mg, orally, twice daily</span>
                            </td>
                        </tr>
      ...

CSS

.narr_table tr td span
        {
           display: inline-block; 
        }

        .narr_table tr td br 
        {
            display: none;
        }
        .narr_table tr td  span:first-child 
        {
            color: Red;
            page-break-after: avoid;
        }

        .narr_table tr td span:first-child + br + div
        {
            page-break-before: avoid;
            color: Blue;
        }