Dadz, I think it was "I have done masturbation long time. This week, my penis [has been] soft. What should I do?" I don't read it as someone taking medication that caused the issue.
I guess English is not your first language, I’m having trouble understanding this.
What are you taking ?
How long have you been taking whatever it it?
And can you get an erection at all? Or can you not maintain it?