Is it permissible to take sedatives for psychological reasons based on a doctor's recommendation?

If a trustworthy, pious Muslim doctor prescribes sedatives, there is no harm in taking them, as there are different types of sedatives, some permissible and some impermissible, and some whose benefit outweighs their harm or vice versa. The reliable and righteous specialized doctors are the reference for distinguishing between them and for how to use the permissible ones.