IRCT20230625058582N1 IRCT 2023-07-29 Mashhad University of Medical Sciences Effect of Ginger (Zinger offiicinale Roscoe) on patients with slow coronary flow Effect of Ginger (Zinger offiicinale Roscoe) on clinical symptoms in patients with slow coronary flow on angiography 2023-07-23 anticipated 48 Complete https://irct.ir/trial/70995 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: The blocked randomization method is used. The volume of each block will be four. Then the list of blocks is written and numbers assigned to them, for example (AABB(1)- BBAA(2)- BABA(3)- BAAB(4)), which will be 12 blocks according to the sample size of 48. Then random numbers between 1 and 12 are selected according to the randomization site Randomaization.com and finally, the treatment allocation list is determined based on the random numbers, Blinding description: Blinding is done using sealed envelopes. Furthermore, due to using a placebo similar to the intervention treatment, the investigator and the participants will not be informed of the assigned treatment, and the analyst will also be unaware of the assigned treatment for the two groups. Finally, after analyzing the data, the researcher who prepared the packages will reveal the codes A and B. 2 Coronary slow flow syndrome. Intervention 1: Intervention group: Patients with slow coronary artery disease receiving routine treatment (including aspirin, statins, beta-blockers and angiotensin-converting enzyme inhibitors) along with edible ginger rhizome powder at a dose of 250 mg once daily for one month. Intervention 2: Control group: Patients with slow coronary artery disease receiving routine treatment (including aspirin, statins, beta-blockers and angiotensin-converting enzyme inhibitors) along with placebo capsule with similar shape, size, and color once daily for one month. The placebo capsule contains 250 mg of Avicel® and is prepared by Dr. Askari's research laboratory at Mashhad University of Medical Sciences. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Undecided - It is not yet known if there will be a plan to make this available