Worldwide the use of natural products for primary health care has increased during the last decade (Ekor, Adeyemi, & Otuechere, 2013).
The most current reports indicate that the planet is home to a diversity of 391,000 vascular plants, of which at least 35,000 species have a potential medicinal use. In addition, 25% of the bioactive compounds used in various medicines come from plants; there are also reports indicating that at least 80% of the world’s population depend on traditional herbal remedies (García de Alba García et al., 2012; Kew, Quinn, Quon, & Ducharme, 2016). Worldwide the use of natural products for primary health care has increased during the last decade (Ekor, Adeyemi, & Otuechere, 2013). The global market for medicinal plants and plant-derived drugs in 2015 was estimated at 25.6 billion dollars and is expected to rise to 35.4 billion dollars in 2020 (Board of Trustees of the Royal Botanic Gardens, Kew et al., 2016). This clearly indicates that the consumption of medicinal plants is a current topic of interest (Alonso Castro et al., 2017). Nevertheless, many medicinal plants lack scientific evidence for their toxicity, chemical composition, and pharmacological effects (Alonso-Castro et al., 2018). Despite improving access to health care in urban areas, many people rely on medicinal plants (Alonso Castro et al., 2012; Juárez Vázquez et al., 2013).