Medical disclaimer: GutVerdict summarizes what people say about supplements on Reddit. It is not medical advice, and nothing here is meant to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the Food and Drug Administration. Talk to your doctor or pharmacist before starting a supplement, especially if you are pregnant, take medicines, or have a medical condition. New, severe or worsening symptoms (such as blood in the stool, weight loss, fever, or night-time symptoms) need a doctor, not a supplement. Full disclaimer.

Peppermint oil capsules vs Iberogast (STW 5)

On Reddit, owners rate Iberogast (STW 5) higher overall (3.8 vs 3.8). Scores summarize self-reported experiences and are not evidence that either will work for you.

Peppermint oil capsulesIberogast (STW 5)
Typeenteric-coated capsulesliquid drops
GutVerdict score3.83.8
Owner sentiment3.53.9
Recommendations3.21.9
Tolerability4.54.8
Owner comments285124
Rated comments14151
Unwanted effects reported16%4%
Top praisePain & cramping, Bloating & gasDose & timing, Bloating & gas
Top complaintsSide effects, Pain & crampingSide effects, Pain & cramping

By symptom

ContextPeppermint oil capsulesIberogast (STW 5)
IBS-C & constipation12 of 15 positive9 of 10 positive
IBS-D & loose stools13 of 19 positive6 of 7 positive
Bloating & gas25 of 33 positive12 of 13 positive
SIBO20 of 28 positive37 of 40 positive
After antibiotics3 of 4 positive4 of 5 positive
Pain & cramping40 of 58 positive5 of 7 positive

What owners say about Peppermint oil capsules

4/5

“I take ibgard and don't have that issue.”

owner comment via r/IBS · 2026-02-26 · 16 upvotes
4/5

“i’ve gotten good at being able to tell if and when it’ll happen and what helps me most is putting peppermint oil all over my nostrils and neck and blasting my handheld fan.”

owner comment via r/IBS · 2026-08-23 · 15 upvotes
4/5

“I did use IBGard peppermint capsules and it helped for me.”

owner comment via r/IBS · 2026-10-13 · 14 upvotes

Full Peppermint oil capsules page →

What owners say about Iberogast (STW 5)

2/5

“We saw tons of specialists, tons of tests, we tried antibiotics and herbals and motility stuff like iberogast.”

owner comment via r/SIBO · 2026-05-26 · 10 upvotes
4/5

“Allison Siebecker's SIBO guidelines, the recommended Iberogast dosage to act as a prokinetic (specifically for the migrating motor complex at night) is **60 drops at bedtime on an empty stomach**...(I think she actually gives it as a range of 30-60)”

owner comment via r/SIBO · 2026-09-29 · 5 upvotes
4/5 Pain & cramping

“(I have a specific diet, never eat outside, can't leave house at certain hours) By taking concerta for my ADHD, accommodating my autism, taking hormones for the PCOS and endometriosis and Iberogast for the IBS and FD.”

owner comment via r/IBS · 2026-04-15 · 1 upvotes

Full Iberogast (STW 5) page →

Talk to a doctor or pharmacist before switching or combining supplements, particularly if you take other medicines.