The chronic conditions that entitlepatients to free NHS prescriptions are:Hypoparathyroidism.Hypoadrenalism (for which specificsubstitution therapy is essential).Diabetes insipidus and otherforms of hypopituitarism.Diabetes Mellitus (except wheretreatment is by diet alone).Myasthenia Gravis.Myxoedema (that is, Hypothyroidismrequiring thyroid hormone replace...