REGEX-Escape for: http://buyfurosemide.network/buy/furosemide-iv.html - furosemide generic

Your Input:
Result, the escaped string:
http\:\/\/buyfurosemide\.network\/buy\/furosemide\-iv\.html \- furosemide generic

What must the escaping look like for:
http://buyfurosemide.network/buy/furosemide-iv.html - furosemide generic

The excaped text for use in a regex is:
http\:\/\/buyfurosemide\.network\/buy\/furosemide\-iv\.html \- furosemide generic