Shen Ling Bai Zhu San

Purported Benefits, Side Effects & More

Shen Ling Bai Zhu San

Purported Benefits, Side Effects & More
Shen Ling Bai Zhu San

Common Names

  • Ginseng & Atractylodes Formula
  • Samryungbaekchul-san
  • Jinryobyakujutsu-san

For Patients & Caregivers

Tell your healthcare providers about any dietary supplements you’re taking, such as herbs, vitamins, minerals, and natural or home remedies. This will help them manage your care and keep you safe.

What is it?

Shen Ling Bai Zhu San (SLBZS) is a traditional Chinese medicine (TCM) formula. It’s made up of 10 different herbs.

What are the potential uses and benefits?

Shen Ling Bai Zhu San is used to:

  • Treat chronic diarrhea (loose or watery bowel movements for more than 4 weeks)

Talk with your healthcare providers before taking herbal formulas. They can interact with some medications and affect how they work. For more information, read the “What else do I need to know?” section below.

What are the side effects?

Side effects of SLBZS may include:

  • Abdominal swelling
  • Constipation (difficult or infrequent bowel movements)
  • Nausea (feeling like you’re going to throw up)
  • Vomiting (throwing up)
  • Rash
  • Allergy
What else do I need to know?
  • Stop taking SLBZS at least 1 week before surgery. It can increase your risk of bleeding.
  • Talk to your healthcare provider if you have hormone-sensitive breast cancer. Some herbs in SLBZS may not be suitable for you.

For Healthcare Professionals

Clinical Summary

Shen Ling Bai Zhu San (SLBZS) is a traditional Chinese medicine (TCM) formula with a long medicinal history as a treatment for chronic diarrhea. First described in the ancient medical text Tai Ping Hui Min He Ji Ju Fang, it consists of 10 herbs: Ren Shen (Panax ginseng C.A. Mey or Asian Ginseng), Fu Ling (Poria cocos (Schw.) wolf), Bai Zhu (Adactylies macrocephala Koidz Rhizome), Gan Cao (Glycyrrhiza uralensis fisch or Licorice), Bai Bian Dou (Dolichos lablab), Shan Yao (Dioscore opposita thumb), Lian Zi (Nelumbo nucifera), Jie Geng (Platycodon grandifloras (Jacq.) A. DC.), Sha Ren (Amomum villosum Lour.), and Yi Yi Ren (Coix lacryma-jobi L. var. ma-yuen (Roman.) Stapf). Today, SLBZS continues to be used by practitioners in the Asia-Pacific region to manage chronic diarrhea (1) (2) and is the second most prescribed formula for post-surgery colon cancer patients in Taiwan (3).

Clinical data are largely limited to Asian population. A pilot, four-arm, randomized controlled trial of patients with diarrhea-predominant irritable bowel syndrome (D-IBS) found SLBZS to be associated with improvements in D-IBS symptoms. In addition, abdominal pain and frequency, discomfort, and stool form showed greater improvements in patients who took SLBZS with or without otilonium bromide, an antispasmodic drug, compared to the otilonium bromide and placebo groups. Notably, patients in the SLBZS and SLBZS + otilonium bromide arms had fewer adverse events compared to those in the otilonium bromide and placebo groups (1).  

In patients with ulcerative colitis, both SLBZS and modified SLBZS were found to be more effective than the first-line therapy mesalamine for controlling diarrhea, abdominal pain and fever  (4) (5). A large review found SLBZS to be the second most prescribed formula for ulcerative colitis, citing the need for well-designed studies (6).
This formula was also superior to the quinolone antibiotic norfloxacin for symptom management in patients with chronic diarrhea of unknown etiology (7)

A systematic review and meta-analysis (14 trials, 1158 patients with ulcerative colitis, chronic diarrhea and D-IBS) reported significant improvements in patient-reported satisfaction with SLBZS or SLBZS combined with conventional medicine compared with conventional medicine alone; and pooled analysis of 9 trials showed that SLBZS did not increase the risk of adverse effects compared with controls (8). Additional methodologically robust trials are needed to bolster the evidence base surrounding SLBZS. Because diarrhea is associated with many gastrointestinal disorders, future studies should also use a global diagnostic code of gastrointestinal disease to yield unambiguous data.

Purported Uses and Benefits
  • Chronic diarrhea
Mechanism of Action

Pharmacological studies suggest that SLBZS promotes the integrity of intestinal barrier, regulates inflammatory factors, and modulates gut microbiota by reducing the levels of potential pathogens and increasing those of beneficial bacteria (9) (10) (11) (12). Additional research is needed to further identify the mechanisms via which SLBZS exerts anti-diarrheal effects.

  • Shen Ling Bai Zhu San contains Ren Shen (Asian Ginseng) and should therefore be discontinued at least 1 week prior to surgery (13).
  • Shen Ling Bai Zhu San contains Gan Cao (Licorice) and Shan Yao (Chinese Yam related to Wild Yam), which have estrogenic properties. But data are lacking to determine if SLBZS acts as a phytoestrogen. It is advisable for patients with hormone-sensitive breast cancer to discuss with their physicians the risks and benefits of starting or continuing SLBZS.  
Adverse Reactions

Shen Ling Bai Zhu San may cause constipation, nausea, vomiting, abdominal distention, rash, and allergy (5) (14) (15).

Dosage (OneMSK Only)
  1. Lee JH, Kim JI, Baeg MK, et al. Effect of Samryungbaekchul-san combined with otilonium bromide on diarrhea-predominant irritable bowel syndrome: a pilot randomized controlled trial. J Clin Med. Sep 27 2019;8(10):1558. doi:10.3390/jcm8101558
  2. Yan J, Miao ZW, Lu J, et al. Acupuncture plus chinese herbal medicine for irritable bowel syndrome with diarrhea: a systematic review and meta-analysis. Evid Based Complement Alternat Med. 2019 April 14; 2019:7680963. doi:10.1155/2019/7680963
  3. Chao TH, Fu PK, Chang CH, Chang SN, Chiahung Mao F, Lin CH; Evidence-based Chinese Medicine Research Group. Prescription patterns of Chinese herbal products for post-surgery colon cancer patients in Taiwan. J Ethnopharmacol. 2014 Aug 8;155(1):702-8.
  4. He KS. Ulcerative colitis spleen qi deficiency parallel randomized controlled study Shenlingbaizhu casual treatment. J Pract Tradit Chin Int Med. 2014;28:58-59.
  5. Quan LZT, Tan JH Clinical study of Shenling Baizhu San for ulcerative colitis. J New Chin Med. 2017;49:42-44.
  6. Zhang X, Zhang L, Chan JCP, et al. Chinese herbal medicines in the treatment of ulcerative colitis: a review. Chin Med. 2022 Apr 4;17(1):43.
  7. Ma Z. Clinical observation of Shen Ling Bai Zhu san in treatment of chronic diarrhea. Contemp Med. 2012;18:148.
  8. Wang H, Hou YN, Yang M, et al. Herbal formula Shen Ling Bai Zhu San for chronic diarrhea in adults: a systematic review and meta-analysis.
  9. Lv WJ, Liu C, Li YF, et al. Systems pharmacology and microbiome dissection of Shen Ling Bai Zhu San reveal multiscale treatment strategy for IBD. Oxid Med Cell Longev. 2019 Jun 23; 2019:8194804. doi:10.1155/2019/8194804
  10. An X, Bao Q, Di S, et al. The interaction between the gut Microbiota and herbal medicines. Biomed Pharmacother. Oct 2019;118:109252. doi:10.1016/j.biopha.2019.109252
  11. Shi K, Qu L, Lin X, et al. Deep-fried atractylodis rhizoma protects against spleen deficiency-induced diarrhea through regulating intestinal inflammatory response and gut microbiota. Int J Mol Sci. Dec 23 2019;21(1). doi:10.3390/ijms21010124
  12. Ma Q, Ouyang Y, Meng F, et al. A review of pharmacological and clinical studies on the application of Shenling Baizhu San in treatment of Ulcerative colitis. J Ethnopharmacol. Nov 15 2019;244:112105. doi:10.1016/j.jep.2019.112105
  13. Ang-Lee MK, Moss J, Yuan CS. Herbal medicines and perioperative care. JAMA. Jul 11 2001;286(2):208-16. doi:10.1001/jama.286.2.208
  14. Li QJ. Clinical observation on 80 cases of diarrhea predominant irritable bowel syndrome treated with Shen ling Bai zhu granule. Guid J Tradit Chin Med Pharm. 2013;19:41-42.
  15. Wang MH, Wang H. Clinical effect of Shenling Baizhu San in treating diarrhea with spleen deficiency. Shenzhen J Int Tradit Chin West Med. 2019;29:59-60.
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