diff --git a/html/index.html b/html/index.html
index f6c737d..ab25ed4 100644
--- a/html/index.html
+++ b/html/index.html
@@ -174,7 +174,7 @@
 					return 1;
 				}
 				
-				// Compare mpp_preferred_term word-by-word accounting for numbers
+				// Compare mpp_preferred_term word-by-word accounting for numbers and units
 				
 				const bits1 = item1['mpp_preferred_term'].split(' ');
 				const bits2 = item2['mpp_preferred_term'].split(' ');
@@ -182,8 +182,23 @@
 				for (let i = 0; i < bits1.length && i < bits2.length; i++) {
 					if (regexIsNumber.test(bits1[i]) && regexIsNumber.test(bits2[i])) {
 						// Numeric compare
-						const num1 = parseInt(bits1[i]);
-						const num2 = parseInt(bits2[i]);
+						let num1 = parseInt(bits1[i]);
+						let num2 = parseInt(bits2[i]);
+						
+						// Check for units - convert to grams
+						if (bits1.length > i + 1 && bits1[i + 1] == 'microgram') {
+							num1 /= 1000000;
+						}
+						if (bits1.length > i + 1 && bits1[i + 1] == 'mg') {
+							num1 /= 1000;
+						}
+						
+						if (bits2.length > i + 1 && bits2[i + 1] == 'microgram') {
+							num2 /= 1000000;
+						}
+						if (bits2.length > i + 1 && bits2[i + 1] == 'mg') {
+							num2 /= 1000;
+						}
 						
 						if (num1 < num2) {
 							return -1;