Hi nothing to worry about. In many cases dapoxitien (Duralast) don’t work. So nothing to worry about.
Instead you can use xylocaine jelly for long lasting results.
Check my YouTube channel- Tandon’s clinic I have given Video regarding Premature ejacultion, it will be helpful for you.
Next Steps
For medicines contact me personally
Health Tips
Start doing Kegel exercise on daily basis.
Good luck