Drug & supplement interaction

Bitter Yam + Ranitidine

Ranitidine brand names: Zantac 150 EFFER, Zantac 150 GEL, Zantac 150, Zantac Geldose, Zantac, and others.

No Known Interaction
Medically reviewed by · Updated July 2026 · Pair last verified Oct 4, 2026
The bottom line No known interaction

We found no known interaction between Bitter Yam and Ranitidine 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

Bitter Yam and Ranitidine

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 Ranitidine and Bitter Yam 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.

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.

Bitter Yam safety at a glance

Bitter Yam overall Use caution Human safety data are limited, and improperly prepared bitter yam can be toxic.
Pregnancy Avoid Not enough safety information exists, so it is best avoided during pregnancy.
Breastfeeding Avoid There is no reliable safety data, so avoid use while breastfeeding.

Safety guidance is general; always confirm with your pharmacist or doctor for your situation.

Still wondering about combining Ranitidine and Bitter Yam? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
How we checked

Why No Interaction Is Listed for Ranitidine

Interactions in our licensed database are recorded against drug classes, not just single drug names. Ranitidine is filed under 6 classifications — including h2-blockers, cytochrome p450 2d6 (cyp2d6) inhibitors, organic anion transporter 3 (oat3) substrates. Bitter Yam has documented interactions with 1 drug class — the most serious being digoxin (lanoxin) (moderate) — and none of Ranitidine’s classifications are among them.

Classification data comes from our licensed Natural Medicines dataset. A medication can belong to classes beyond those recorded there, so this describes how the check was run — it is not a safety guarantee.

Keep it in perspective

Bitter Yam Does Interact With Other Medications

Bitter Yam has 1 moderate known drug interaction in our database — Ranitidine isn’t one of them. If you take anything else, check it against the full list below.

Moderate 1 No known interaction 2,829 (incl. Ranitidine)
Taking anything else?

Check Another of Your Medications Against Bitter Yam

Covers the 2,830 medications we’ve checked against Bitter Yam. Pick one to open its full report.

What to actually watch for

What Ranitidine’s Own FDA Label Lists

This is not an interaction — none of it involves Bitter Yam. These are the most notable effects listed in the ADVERSE REACTIONS section of Ranitidine’s own FDA label, for the medication by itself. Knowing the drug’s own list makes it easier to work out the likely cause if something new turns up while you take both. 10 of them are worth acting on rather than waiting out — marked below.

  • A slow heartbeat Worth acting on
  • Hallucinations Worth acting on
  • Pancreatitis Worth acting on
  • Yellowing of the skin or eyes Worth acting on
  • An irregular heartbeat Worth acting on
  • Wheezing Worth acting on
  • Confusion Worth acting on
  • A severe skin reaction Worth acting on
  • Low mood Worth acting on
  • A low platelet count Worth acting on

Showing the 10 most notable of 37 label-listed effects — ranked by how unusual each one is across medicines generally, with serious effects weighted up.

From the ADVERSE REACTIONS section of the FDA label for Ranitidine. Read the label on DailyMed › Where a percentage is shown, it is the share of 230,801 voluntary FDA FAERS reports for Ranitidine that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Bitter Yam’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Bitter Yam side to compare — that is a limit of the record, not a statement that Bitter Yam has no side effects.

From our Q&A

Questions About Bitter Yam or Ranitidine

These are real questions from readers, answered by the pharmacists at HelloPharmacist — written by a person, not generated from a database. Each one covers Bitter Yam or Ranitidine, 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 Ranitidine

This page covers Bitter Yam only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ranitidine page lists 74 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), St. John's Wort (major), African Wild Potato (moderate), Banderol (moderate) and Beer (moderate).

By severity: 2 major · 43 moderate · 29 minor.

From our pharmacist’s overview on the Ranitidine page

“Ranitidine (Zantac) is a heartburn and ulcer medicine gentle enough to have sold over the counter, but two of the 74 supplements and herbs on file with it earn real caution and are worth understanding first. Activated charcoal can soak up ranitidine in the gut and blunt the dose, and St.”

Reviewed by 2 · Jul 18, 2026

Open the Ranitidine interaction page

How much people look this up

Where Bitter Yam and Ranitidine 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 Bitter Yam
Steady interest

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

29 days ago today
Medication Ranitidine
Top half

#1,258 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 Bitter Yam reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified October 4, 2026. The Bitter Yam and Ranitidine 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 .
Supplement

About Bitter Yam

What is Bitter Yam?

Bitter Yam
  • Blood sugar support
  • Digestive complaints
  • Traditional food source
  • Wound and skin care (folk use)

Bitter yam is a wild African yam used traditionally as both food and folk medicine, often for blood sugar and digestion. Scientific evidence in humans is very limited, and some bitter yam species can be toxic if not properly prepared. Talk to a pharmacist or doctor before using it as a supplement.

Dioscorea dumetorum · Dioscoreaceae · Tuber (root) · Cooked tuber, dried powder, traditional preparations

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

Bitter Yam: dosing

There is no established, standardized dose of bitter yam as a supplement. Traditional use varies widely and depends on how the tuber is prepared.If you choose to use a commercial product, follow the directions on the label and do not take more than recommended.

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

Read the full Bitter Yam monograph & all interactions
Medication

About Ranitidine

What Is Ranitidine Used For?

Brand names: Zantac 150 EFFER, Zantac 150 GEL, Zantac 150, Zantac Geldose, Zantac, Ranit, Zantac Efferdose, Zantac 300, Zantac 300 GEL, Ranitidine injection

Ranitidine treats a range of stomach acid–related conditions. Prescription-strength ranitidine (capsules, tablets, and oral solution) is used for active duodenal ulcers (ulcers in the small intestine), active benign gastric ulcers (stomach ulcers), GERD (acid reflux disease), erosive esophagitis (acid damage to the esophagus), and pathological hypersecretory conditions — rare disorders where the stomach makes far too much acid, such as Zollinger-Ellison syndrome. It is also used as maintenance therapy to keep duodenal and gastric ulcers from coming back after they have healed.

Over-the-counter products — including Acid Reducer and Acid Reducer 150 tablets — are approved to relieve heartburn associated with acid indigestion and sour stomach, and to prevent that heartburn when taken before eating or drinking foods that trigger it.

Most-Reported Side Effects for Ranitidine

From FAERS, the FDA’s public side-effect reporting system (230,801 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Breast cancer 29,413 reports
Prostate cancer 26,446 reports
Colorectal cancer 20,720 reports
Bladder cancer 19,207 reports
Renal cancer 19,035 reports
See full Ranitidine drug information
Keep checking

Other Drugs & Bitter Yam

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

0Major
1Moderate
0Minor
2,828No known interaction
1 Moderate 2,828 No interaction
Moderate

1 interaction

No interaction 2,828 drugs checked — show the list

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

Showing the 60 most looked-up of 2,828 medications checked with no known interaction — see the full Bitter Yam list.

See the full Bitter Yam interactions page
See every supplement checked against Ranitidine, ranked by severity
Evidence & sources

Bitter Yam References

The 1 references that drive our Bitter Yam 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.

  1. Nimenibo-Uadia R. Control of hyperlipidaemia, hypercholesterolaemia and hyperketonaemia by aqueous extract of Dioscorea dumetorum tuber. Trop J Pharm Res 2003;2:183-9. Available at: http://www.bioline.org.br/request?pr03009. DOI

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 Bitter Yam and Ranitidine Together: Common Questions

Is it safe to take Bitter Yam with Ranitidine?
We do not list a known interaction between Bitter Yam and Ranitidine. 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.
How was the Bitter Yam and Ranitidine combination checked?
Interactions in our licensed database are recorded against drug classes. Ranitidine is filed under 6 classifications, and Bitter Yam has documented interactions with 1 drug class — none of Ranitidine's classifications are among them. A medication can belong to classes beyond those recorded in our dataset, so this describes how the check was run rather than guaranteeing safety.
Does Bitter Yam interact with any other medications?
Yes. Bitter Yam has 1 documented drug interaction in our database — Ranitidine is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.
Does Ranitidine interact with any supplements?
Yes. Ranitidine has documented interactions with 74 supplements in our database — Bitter Yam is not one of them. The Ranitidine 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

Bitter Yam monograph Uses, safety profile, and every drug interaction in one place Ranitidine drug information The full plain-English guide to this medication Ranitidine supplement interactions Every supplement checked against Ranitidine, 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 Ranitidine and Bitter Yam?

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.