Comparing the effects of saffron, lippia, and saffron-lippia combination on anxiety among candidates for coronary angiography

Coronary artery disease (CAD) is among the most prevalent diseases in the world, and its severity is usually assessed through coronary angiography (CA). Anxiety is the most prevalent problem before angiography. The aim of this study was to evaluate (saffron) and Kunth (lippia) extracts and saffron-lippia extract combination on anxiety among the candidates for CA. This double-blind randomized placebo-controlled trial in four month was conducted on 120 angiography candidates in Valiasr hospital, Birjand, Iran. The random allocation was doing through block randomization to saffron, lippia, saffron-lippia, and placebo groups; four hours before angiography, participants in these groups respectively received a single dose of saffron extract capsule (40 mg), lippia extract capsule (40 mg), saffron-lippia extract capsule (20 mg saffron and 20 mg lippia), and lactulose capsule (40 mg). Participants' anxiety was assessed before, thirty minutes after, and three hours after the intervention via Spielberger State-Trait Anxiety Inventory. The mean scores of state, trait, and total anxiety in the saffron group reduced significantly (p