Is the salary a pharmacist receives for registering her name as a manager of a pharmacy, without actually working in it, permissible or impermissible (halal or haram)? And if it is impermissible, must she give away what she has spent from it?

What the sister takes for merely registering her name is from the price of influence (Jah), and it is more prudent and absolves one's responsibility to return the money to the pharmacy owner or ask for his forgiveness. As for the future, if she wishes to continue this work, she must directly undertake her work as a manager so that her salary is permissible and free from any doubt.