REGEX-Escape for: http://diflucan.joburg/med/150-mg-diflucan.html - buy diflucan over the counter

Your Input:
Result, the escaped string:
http\:\/\/diflucan\.joburg\/med\/150\-mg\-diflucan\.html \- buy diflucan over the counter

What must the escaping look like for:
http://diflucan.joburg/med/150-mg-diflucan.html - buy diflucan over the counter

The excaped text for use in a regex is:
http\:\/\/diflucan\.joburg\/med\/150\-mg\-diflucan\.html \- buy diflucan over the counter