IRCT2014100419330N2 IRCT 2014-11-22 Vice Chancellor for Research of Arak University of Medical Science A comparison between effects of Glycyrrhiza glabra and Zataria multiflora on gastrointestinal disorders of ICU nurses Comparison of Liquorice and Zataria multiflora effects on gastrointestinal symptoms in ICU and CCU nurses 2014-10-23 anticipated 105 Complete https://irct.ir/trial/17306 interventional Randomization: Randomized, Blinding: Triple blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Other design features: A random number between 1 and 105 is assigned to each of nurses (satisfying inclusion criteria) and then they classified to three groups via random number generation. N/A Condition 1: Irritable bowel syndrome. Condition 2: Constipation. Condition 3: Functional diarrhoea. Condition 4: Fissure and fistula of anal and rectal regions. Condition 5: Abscess of anal and rectal regions. Condition 6: Other diseases of anus and rectum. Condition 7: Other diseases of intestine. Condition 8: Other specified diseases of digestive system. Condition 9: Disease of digestive system, unspecified. Intervention 1: First intervention group: First intervention group treatment is carried out via Glycyrrhiza glabra (3 capsule D-reglis: 650mg per day) during 4 weeks. Intervention 2: Control group: In control group, placebo is utilized (3 capsule starches per day) during 4 weeks. Intervention 3: Second intervention group: Second intervention group treatment is carried out via Zataria multiflora (3 capsule gastrolit: 20 mg per day) during 4 week.