Therapy freedom is the freedom of physicians to apply whichever therapy their medical knowledge makes them believe to be appropriate.^[1] That often means:

1. Physician have the legal right to prescribe an unlicensed drug.^{[citation needed]}
2. A health insurance company is obliged to pay for the treatment, regardless of whether or not it considers the treatment to be appropriate.^[2]

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Therapy freedom, however, is limited to cases of no treatment existing that is both well-established and more efficacious.

Therapy freedom is established in Germany, where it is known as Therapiefreiheit.