Pharmacovigilance is important for generating accurate safety of herbal medications information. The present methods were designed for synthetic medications and will need to be modified to account for the unique characteristics of medicinal plants. The objective of pharmacovigilance is to identify, measure, and explain adverse effects or other potential drug-related issues associated with herbal, traditional, and complementary therapies, as well as to avoid them. Required data for pharmcovigilance of herbal drugs and formulation were obtained from electronic sources (google scholar, PubMed, Scopus, Web of Science), several textbooks. The keywords used to search for various journal publishers such as Willey Online Library, Springer, Wolters Kluwer and Elsevier were closely monitored. This review article covers all the relevant information on issues and challenges in pharmacovigilance of formulation covering Herbal drugs.