Asafoetida

Asafoetida is an oleo-gum-resin from Ferula species containing sesquiterpene coumarins (farnesiferols, galbanic acid), organosulfur compounds, and ferulic acid. A double-blind RCT (n=43) found 250mg twice daily for 30 days significantly improved functional dyspepsia symptoms in 81% of patients vs placebo (p<0.01). For IBS, a Cochrane review found very low quality evidence from 2 trials (n=129). An RCT found Ferula capsules comparable to metronidazole for Trichomonas vaginalis (n=70). A small PCOS trial (n=30) compared 1g/day to oral contraceptives. Mechanistically, it relaxes intestinal smooth muscle and inhibits gas formation. Preclinical data shows antihypertensive, anticonvulsant (effective in kindling models), and neuroprotective effects, but robust human evidence beyond digestive conditions is lacking.

Quick Answer

What it is

Asafoetida is an oleo-gum-resin from Ferula species containing sesquiterpene coumarins (farnesiferols, galbanic acid), organosulfur compounds, and ferulic acid. A double-blind RCT (n=43) found 250mg twice daily for 30 days significantly improved functional dyspepsia symptoms in 81% of patients vs placebo (p<0.01).

Key findings

  • Grade C: Overall Symptom Score
  • Grade C: Clinical Symptom Improvement
  • Grade D: Global Improvement (Irritable Bowel Syndrome (IBS))

Safety

No specific caution or interaction language was detected in the current summary/outcome notes.

ℹ️ Quick Facts: Asafoetida

Quick Facts: Asafoetida

  • Best Evidence:Grade D
  • Conditions Studied:1
  • Research Outcomes:5
  • Key Effect:Irritable Bowel Syndrome (IBS)
Outcomes by grade:
A0
B0
C2
D3
1 conditions · 5 outcomes

Detailed Outcomes

|
C
Overall Symptom Score
Double-blind RCT: 250mg twice daily for 30 days; 81% showed significant improvement (p<0.01) vs placebo in overall score and quality of life
1 study
moderateImproves
C
Clinical Symptom Improvement
Ferula capsule showed improved clinical symptoms compared to metronidazole over 7 days; potential replacement therapy
1 study
moderateImproves
D
Global Improvement
Cochrane review: very low quality evidence; one study showed improvement vs placebo, another showed no difference vs dicyclomine
2 studies
smallImproves
D
Anti-inflammatory Effect
Ethanolic extract administered to 2 groups of 50 patients; results significant at p<0.001
1 study
moderateImproves
D
Hormonal Parameters
Double-blind RCT compared asafoetida 1g/day vs low-dose oral contraceptive; preliminary data
1 study
smallImproves

Evidence by Condition

Best grade per condition (each condition may have multiple outcomes)

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