Drug & supplement interaction

Sumbul + Phentermine

Phentermine brand names: Adipex-P, Fastin, T Diet, Phentride, Obenix, and others.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated July 2026 · Pair last verified Sep 20, 2026

The bottom line No known interaction

We found no known interaction between Sumbul and Phentermine in our sources. Absence of a documented interaction is not the same as proven safety, and does not guarantee one does not exist. Do not start, stop, or change a medication or supplement based on this page; confirm with your pharmacist or doctor first.

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Interaction report

Sumbul and Phentermine

We checked these two against our interaction database. Here is what we found.

No Known Interaction Found

We did not find a documented interaction between Phentermine and Sumbul in our sources. This does not guarantee that the combination is completely free of risk — there is often limited research on supplements and herbal products, especially around drug interactions.

Worth understanding: our licensed dataset holds no drug-interaction record for Sumbul at all — not against Phentermine, and not against any other medication we track. This verdict therefore rests on the absence of any recorded data, not on research that looked at this combination and found nothing. We cannot rule an interaction out.

If you decide to take both, the practical routine is simple: add one new thing at a time and note the date you started it. If the combination is going to disagree with you, it usually shows in the first days to a couple of weeks — and a start date turns “I’ve been feeling off” into something a pharmacist can actually work with. Do not stop a prescribed medicine on your own.

Always talk with your pharmacist or doctor before making changes to your medications or supplements, particularly if you take several medications or have an ongoing health condition.

Sumbul safety at a glance

Sumbul overall Not established Little modern safety data exists, so use cautiously and under professional guidance.

Pregnancy Avoid Safety is not established; avoid use during pregnancy.

Breastfeeding Possibly Unsafe When sumbul leaves are used orally. After a breastfeeding parent consumed sumbul leaves, both the parent and breastfeeding infant experienced several episodes o... Read the full breastfeeding detail

Pregnancy & breastfeeding ratings are from Natural Medicines (Therapeutic Research Center) — the full detail is in the Special populations card below. Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Phentermine and Sumbul? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

What to actually watch for

What Sumbul Itself Has Been Linked To

This is not an interaction — nothing below involves Phentermine. It is the side-effect record for Sumbul on its own, from the licensed Natural Medicines monograph. If something new turns up after you add Sumbul, this list is the first place to look.

Vomiting Additional detail
“There is currently a limited amount of information on the adverse effects of sumbul.

Serious Adverse Effects (Rare):

Orally: Vomiting requiring hospitalization in individuals consuming sumbul leaf.”

Sumbul · Natural Medicines adverse-effect record, reported in nausea and vomiting.
“Orally, ingestion of sumbul leaves may cause vomiting. In one case, a mother and nursing infant presented to the emergency department after experiencing several episodes of vomiting two hours after the mother consumed sumbul leaves and later nursed the infant. The amount of sumbul leaves consumed was not reported.”

Sumbul · Natural Medicines adverse-effect record, reported in nausea and vomiting.
1 source cited

106524. Derin H, Yildirim G, Çaksen H. Intoxication from Ferula sumbul leaves in a mother and her infant. J Pediatr Intensive Care 2013;2(4):193-4.

Everything above comes from the Natural Medicines adverse-effect record for Sumbul — expand a row for the licensed statement it rests on. We read the ADVERSE REACTIONS section of Phentermine’s FDA label too, and the two lists don’t meaningfully overlap — which is why no Phentermine column appears here.

Special populations

Sumbul in Pregnancy & Breastfeeding

Lactation Possibly Unsafe

When sumbul leaves are used orally. After a breastfeeding parent consumed sumbul leaves, both the parent and breastfeeding infant experienced several episodes of vomiting two hours later, suggesting that sumbul leaf constituents may pass through breast milk. There is insufficient reliable information available about the effects of sumbul root products during lactation; avoid using.

DISCLAIMER: This tool is intended for informational purposes only, and should not be interpreted as specific medical advice. Patients should consult with a qualified healthcare provider before making decisions about therapies and/or health conditions.© 2026 Therapeutic Research Center

From our Q&A

Questions About Sumbul or Phentermine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Sumbul or Phentermine, not necessarily both, but if one is close to what you were about to ask it will usually go further than a database entry can:

Not quite your question? Ask our pharmacists directly — it is free, there is no account required, and answers usually come back within 24 hours.

Everything else you take

See Every Supplement That Interacts With Phentermine

This page covers Sumbul only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Phentermine page lists 61 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Ephedra (major), Peyote (major), Rauvolfia Vomitoria (major) and Sida Cordifolia (major).

By severity: 5 major · 43 moderate · 13 minor.

From our pharmacist’s overview on the Phentermine page

“Ephedra is the pairing I most want anyone taking phentermine (Adipex-P) to know about. Phentermine is itself a stimulant appetite suppressant that raises heart rate and blood pressure, and ephedra piles the same cardiovascular strain on top of it.”

Reviewed by 2 · Jul 18, 2026

Open the Phentermine interaction page

One more smart check

Taking Sumbul as Part of a Dietary Supplement Product? Check It for Interactions

We hold 4 real supplement products containing Sumbul, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Sumbul. Even though Sumbul itself has no known interaction with Phentermine, another ingredient on your label might. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Sumbul and Phentermine Sit Against Everything Else

Out of every supplement and medication people look up on HelloPharmacist, here is where these two land this week — and which way each has been moving.

Supplement Sumbul

Steady interest

#873 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Phentermine

Top 25%

#364 of 2,830 medications looked up here in the last 7 days

29 days ago today

Position among everything looked up on this site, not a measure of how commonly either one is used or how important it is. A supplement can climb this list because of a news story. It counts every request to the page, automated ones included, and nothing here identifies anyone.

Where does our data come from?

Source: the Natural Medicines (TRC Healthcare) clinical database — the evidence-graded professional reference for herb & supplement interactions.
Citation library: 103,510 references behind our interaction content, 65,311 of them resolved to verified PubMed/DOI sources. See every Sumbul reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Sumbul and Phentermine records this page draws on were last updated July 11, 2026.
What “no known interaction” means: no documented interaction in the sources above — not a guarantee of safety. Supplements are studied far less than prescription drugs, so we say exactly what the evidence supports, and nothing more.

Data structure & sourcing designed and verified by Dr. Brian Staiger, PharmD, BCPS.

Supplement

About Sumbul

What is Sumbul?

Nervous tension and anxiety
Muscle spasms and cramps
Menstrual discomfort
Digestive upset
Traditional aphrodisiac

Sumbul is a musky-smelling root from a Ferula plant that has been used in traditional medicine mainly as a calming, antispasmodic remedy. There is very little modern scientific research to confirm any of its benefits, and its safety has not been well studied. Talk with a pharmacist or doctor before using it.

Ferula sumbul · Apiaceae · Root (rhizome) · Tincture, fluid extract, dried root, powder

An interaction check asks whether these two react with each other — it does not ask whether Sumbul is a good idea for someone in your situation. Here is what our Sumbul record says about it on its own.

Sumbul: dosing

There is no standardized, well-established dose for Sumbul. Historical doses were given as tinctures or fluid extracts, but those figures come from old herbal references and may not be safe or reliable today.If you choose to use a Sumbul product, follow the directions on the label and do not exceed them.

From our Sumbul monograph — the full record covers uses, side effects and every documented interaction.

Read the full Sumbul monograph & all interactions

Medication

About Phentermine

What Is Phentermine Used For?

Brand names: Adipex-P, Fastin, T Diet, Phentride, Obenix, Pbc Phentride, Pbw Phentride, Phentrol #3, Ionamin, Phentrol #6, Phentrol #2, Phentrol #5, Phentrol, Obermine, Phentermine, Suprenza

Phentermine is approved as a short-term addition to a weight-loss program — not a standalone treatment. It is used alongside reduced-calorie eating, increased physical activity, and behavior changes to help manage obesity in adults whose body mass index (BMI) is 30 kg/m² or higher, or 27 kg/m² or higher when other risk factors such as controlled high blood pressure, diabetes, or high cholesterol (hyperlipidemia) are also present.

All available phentermine products — including Adipex-P, Lomaira, and various generic capsules and tablets — share this same FDA-approved use. Lomaira tablets are specifically dosed to be taken three times daily before meals, while other formulations are generally taken once daily. Treatment is intended to last only a few weeks.

See full Phentermine drug information

Keep checking

Other Drugs & Sumbul

Browse every other medication we’ve checked against Sumbul — both the ones with a known interaction and the ones without. Select any drug for the full detail.

0Major

0Moderate

0Minor

2,829No known interaction

2,829 No interaction

No interaction 2,829 drugs checked — show the list

We also checked Sumbul against these medications and found no known interaction in our sources. Open any page to confirm.

Showing the 60 most looked-up of 2,829 medications checked with no known interaction — see the full Sumbul list.

See the full Sumbul interactions page

See every supplement checked against Phentermine, ranked by severity

Evidence & sources

Sumbul References

The 1 references that drive our Sumbul monograph and interaction data, from the evidence-graded Natural Medicines (TRC Healthcare) database. Citations with a link open the study on PubMed or the publisher’s site.

Derin H, Yildirim G, Çaksen H. Intoxication from Ferula sumbul leaves in a mother and her infant. J Pediatr Intensive Care 2013;2(4):193-4.

Medication overviews come from MedlinePlus (NIH); supplement label data from the NIH Dietary Supplement Label Database. Content is written and reviewed by licensed HelloPharmacist pharmacists — see our data sources and editorial standards.

Pharmacist Counseling Corner

Taking Sumbul and Phentermine Together: Common Questions

Is it safe to take Sumbul with Phentermine?

We do not list a known interaction between Sumbul and Phentermine. That does not guarantee the combination is risk-free, so confirm with your pharmacist or doctor — especially if you take other medications or have a health condition.

Does Phentermine interact with any supplements?

Yes. Phentermine has documented interactions with 61 supplements in our database — Sumbul is not one of them. The Phentermine interaction page linked on this page lists every one, ranked by severity.

Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy

Where next

Keep Exploring

Sumbul monograph Uses, safety profile, and every drug interaction in one place Phentermine drug information The full plain-English guide to this medication Phentermine supplement interactions Every supplement checked against Phentermine, ranked by severity Supplement interaction checker Check any supplement or product against your medications Browse medications A–Z Every drug we’ve checked against herbs & supplements References The 1 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Phentermine and Sumbul?

Our pharmacists answer your medication & supplement questions — free.

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This information is for education only and is not a substitute for professional medical advice. Always check with your pharmacist or doctor before starting, stopping, or combining supplements and medications.