Dr. Grey AI

Althaea Officinalis

Althaea officinalis (marshmallow root) contains 5% mucilage polysaccharides that form a protective film over irritated throat mucosa. Two surveys (n=822 adults) found STW42 extract relieved dry cough within 10 minutes with excellent tolerability. Pediatric studies (n=900+ children) showed cough reduction. EMA/HMPC approved for traditional use in dry cough and throat irritation based on 30+ years safe use, though evidence is primarily observational rather than RCT-based.

Quick Answer

What it is

Althaea officinalis (marshmallow root) contains 5% mucilage polysaccharides that form a protective film over irritated throat mucosa. Two surveys (n=822 adults) found STW42 extract relieved dry cough within 10 minutes with excellent tolerability.

Key findings

  • Grade C: Cough Symptom Relief
  • Grade D: Cough Reduction
  • Grade D: Cough Frequency

Safety

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

ℹ️ Quick Facts: Althaea Officinalis

Quick Facts: Althaea Officinalis

  • Best Evidence:Grade C
  • Conditions Studied:0
  • Research Outcomes:3
Outcomes by grade:
A0
B0
C1
D2
0 conditions · 3 outcomes

Detailed Outcomes

|
C
Cough Symptom Relief
Symptom relief within 10 minutes; sustained over 7-day treatment (observational surveys)
2 studies
moderate↓Improves
D
Cough Reduction
Cough reduction in children 3mo-12yrs, but studies had limitations
2 studies
moderate↓Improves
D
Cough Frequency
Reduced cough vs placebo, but preparation not well-described
1 study
moderate↓Improves

You Might Also Like

Slippery Elm

1 shared outcome · 4 outcomes

Slippery elm is a North American tree whose inner bark contains mucilage with soothing/coating properties. Traditionally used for sore throat, coughs, GI complaints, and skin irritation. NO GRADED OUTCOMES - clinical research is limited. The mucilage provides mechanical soothing, similar to other demulcent herbs. Generally safe. Often used in throat lozenges and teas. May interfere with medication absorption.