Shakespeare and stress

Why Shakespeare Is For All Time by Theodore Dalrymple, from City Journal, Winter 2003:

…Yet the prescription of (Prozac) (and others like it) to millions of people has not noticeably reduced the sum total of human misery or the perplexity of life. A golden age of felicity has not arrived: and the promise of a pill for every ill remains, as it always will, unfulfilled….Anyone who had read his Shakespeare would not have been surprised by this disappointment. When Macbeth asks a physician:

Canst thou not minister to a
mind diseased,
Pluck from the memory a
rooted sorrow,
Raze out the written troubles
of the brain,
And with some sweet
oblivious antidote
Cleanse the stuffed bosom
of that perilous stuff
Which weighs upon the heart?

The physician replies laconically: Therein the patient / Must minister to himself.