Synopsis Contents: Part I. Description of Medicinal plants: 1. Alkanna. 2. Amalaki. 3. American Spinkenard. 4. Amragandhiharidra. 5. Annual Wormwood. 6. Antamool (Indian Ipecauch). 7. Arjuna. 8. Arka (Indian Madar). 9. Arnica. 10. Ashwagandha (Indian winter cherry). 11. Bala (Country Mallow). 12. Bhallataka (Marking Nut). 13. Bhringraja (Trailing Eclipta). 14. Bilva (Wood Apple). 15. Bishop's weed. 16. Bitter apple. 17. Black Cohosh. 18. Blue Cohosh. 19. Brahami (Indian Graviola). 20. Buchu...... Part II. Hypericum perforatum L.: 1. Introduction. 2. Chemical composition. 3. Hypericum perforatum and cardiovascular system. 4. Hypericum perforatum and integument system. 5. Hypericum perforatum and nervous system. 6. Hypericum perforatum and digestive system. 7. Hypericum perforatum and cancer. 8. Hypericum perforatum and postmenopausal syndrome. 9. Antiviral studies of hypericum perforatum and hypericin. 10. Hypericum perforatum and immunity. 11. Hypericum perforatum and inflammation. 12. Pharmacokinetics of hypericin and hyperforin. 13. Drug interactions of Hypericum perforatum. 14. Adverse drug reactions and toxicity of hypericum perforatum. 15. Investigations of other hypericum species. 16. Oil of hypericum perforatum. 17. Dose of hypericum perforatum. 18. Emerging concepts.