import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
 
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "Действующие вещества:</td>\n" +
                "                                    <td><a href=\"\" class=\"\">*</a></td>";
        Pattern pattern = Pattern.compile("(?s)Действующие вещества:.*?class=\"\">(.*?)</a>");
		Matcher matcher = pattern.matcher(s);
        while(matcher.find()) {
            System.out.println("Действующие вещества: "+ matcher.group(1));
        }
	}
}

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