Drug & supplement interaction

Anhydrous Crystalline Maltose + Pertuzumab

Pertuzumab brand name: Perjeta.

No Known Interaction

Medically reviewed by Dr. Brian Staiger, PharmD, BCPS · Updated June 2026 · Pair last verified Sep 13, 2026

The bottom line No known interaction

We found no known interaction between Anhydrous Crystalline Maltose and Pertuzumab 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.

Know someone taking this? Share

Facebook Post Reddit Email

On this page

Interaction report

Anhydrous Crystalline Maltose and Pertuzumab

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 Pertuzumab and Anhydrous Crystalline Maltose 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.

Anhydrous Crystalline Maltose safety at a glance

Anhydrous Crystall... overall Use caution Generally well tolerated in studies, but it is a sugar, so people with diabetes should be cautious.

Pregnancy Use caution Not well studied as a supplement in pregnancy; check with your doctor before use.

Breastfeeding Use caution Not well studied during breastfeeding; check with your doctor before use.

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

Still wondering about combining Pertuzumab and Anhydrous Crystalline Maltose? Ask Dr. Brian Staiger, PharmD, BCPS directly ›

Keep it in perspective

Anhydrous Crystalline Maltose Does Interact With Other Medications

Anhydrous Crystalline Maltose has 86 minor known drug interactions in our database — Pertuzumab isn’t one of them. If you take anything else, check it against the full list below.

Minor 86 No known interaction 2,744 (incl. Pertuzumab)

Taking anything else?

Check Another of Your Medications Against Anhydrous Crystalline Maltose

Covers the 2,830 medications we’ve checked against Anhydrous Crystalline Maltose. Pick one to open its full report.

What to actually watch for

What Pertuzumab’s Own FDA Label Lists

This is not an interaction — none of it involves Anhydrous Crystalline Maltose. These are the most notable effects listed in the ADVERSE REACTIONS section of Pertuzumab’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.

Low potassium Worth acting on
Heart failure Worth acting on
A low platelet count Worth acting on
Anemia Worth acting on
Shortness of breath Worth acting on
A severe allergic reaction Worth acting on
A low white blood cell count Worth acting on
Bleeding or bruising Worth acting on
A higher chance of infection Worth acting on
An allergic reaction Worth acting on

Showing the 10 most notable of 38 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 Pertuzumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 30,695 voluntary FDA FAERS reports for Pertuzumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Anhydrous Crystalline Maltose’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Anhydrous Crystalline Maltose side to compare — that is a limit of the record, not a statement that Anhydrous Crystalline Maltose has no side effects.

How much people look this up

Where Anhydrous Crystalline Maltose and Pertuzumab 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 Anhydrous Crystalline Maltose

Steady interest

#1,034 of 1,452 supplements looked up here in the last 7 days

29 days ago today

Medication Pertuzumab

Steady interest

#1,470 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 Anhydrous Crystalline Maltose reference on this page ↓
Freshness: we automatically re-check this combination every week — this pair was last verified September 13, 2026. The Anhydrous Crystalline Maltose and Pertuzumab records this page draws on were last updated June 22, 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 Anhydrous Crystalline Maltose

What is Anhydrous Crystalline Maltose?

Dry mouth (xerostomia)
Sjögren syndrome
Dry mouth from medications
Food stabilizer and texturizer

Anhydrous crystalline maltose is a starch-derived sugar (also called malt sugar) studied mainly as a slow-dissolving lozenge to ease dry mouth, including in people with Sjögren syndrome. Some studies suggest it may modestly improve saliva flow, but the overall evidence is limited. It appears generally well tolerated, but talk with your pharmacist or doctor before using it, especially if you have diabetes.

Disaccharide sugar derived from starch · Dissolving lozenges, tablets, powder

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

Anhydrous Crystalline Maltose: dosing

There is no official, standardized supplement dose for anhydrous crystalline maltose. Do not assume more is better.

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

Read the full Anhydrous Crystalline Maltose monograph & all interactions

Medication

About Pertuzumab Injection

What Is Pertuzumab Injection Used For?

Brand name: Perjeta

Perjeta is used in combination with trastuzumab and chemotherapy for adults with HER2-positive breast cancer in several settings. For metastatic breast cancer (cancer that has spread to other parts of the body), Perjeta is used with trastuzumab and docetaxel in patients who have not yet received anti-HER2 therapy or chemotherapy for their metastatic disease.

For early breast cancer, Perjeta is used as neoadjuvant treatment (given before surgery) with trastuzumab and chemotherapy in adults with HER2-positive, locally advanced, inflammatory, or early stage breast cancer. It is also used as adjuvant treatment (given after surgery) with trastuzumab and chemotherapy in adults with HER2-positive early breast cancer who are at high risk of the cancer coming back.

Most-Reported Side Effects for Pertuzumab

From FAERS, the FDA’s public side-effect reporting system (31,323 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Diarrhea 4,172 reports

Fatigue 2,057 reports

Nausea 2,049 reports

Alopecia 1,604 reports

Myelosuppression 1,579 reports

See full Pertuzumab Injection drug information

Keep checking

Other Drugs & Anhydrous Crystalline Maltose

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

0Major

0Moderate

86Minor

2,743No known interaction

86 Minor 2,743 No interaction

Minor

86 interactions

Showing 60 of 86 minor interactions — see all 86 on the Anhydrous Crystalline Maltose page.

No interaction 2,743 drugs checked — show the list

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

Showing the 60 most looked-up of 2,743 medications checked with no known interaction — see the full Anhydrous Crystalline Maltose list.

See the full Anhydrous Crystalline Maltose interactions page

See every supplement checked against Pertuzumab, ranked by severity

Evidence & sources

Anhydrous Crystalline Maltose References

The 2 references that drive our Anhydrous Crystalline Maltose 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.

Fox, P. C., Cummins, M. J., and Cummins, J. M. Use of orally administered anhydrous crystalline maltose for relief of dry mouth. J Altern Complement Med 2001;7(1):33-43. PubMed
Fox, P. C., Cummins, M. J., and Cummins, J. M. A third study on the use of orally administered anhydrous crystalline maltose for relief of dry mouth in primary Sjogren's syndrome. J Altern Complement Med 2002;8(5):651-659.

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 Anhydrous Crystalline Maltose and Pertuzumab Together: Common Questions

Is it safe to take Anhydrous Crystalline Maltose with Pertuzumab?

We do not list a known interaction between Anhydrous Crystalline Maltose and Pertuzumab. 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 Anhydrous Crystalline Maltose interact with any other medications?

Yes. Anhydrous Crystalline Maltose has 86 documented drug interactions in our database — Pertuzumab is simply not one of them. If you take anything else, it is worth checking each one; they are all listed on this page.

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

Where next

Keep Exploring

Anhydrous Crystalline Maltose monograph Uses, safety profile, and every drug interaction in one place Pertuzumab Injection drug information The full plain-English guide to this medication Pertuzumab supplement interactions Every supplement checked against Pertuzumab, 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 2 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Pertuzumab and Anhydrous Crystalline Maltose?

Our pharmacists answer your medication & supplement questions — free.

Ask a pharmacist

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.