Drug & supplement interaction

Facening + Daratumumab

Daratumumab brand name: Darzalex.

No Known Interaction
Medically reviewed by · Updated June 2026 · Pair last verified Sep 20, 2026
The bottom line No known interaction

We found no known interaction between Facening and Daratumumab 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

Facening and Daratumumab

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 Daratumumab and Facening 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 Facening at all — not against Daratumumab, 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.

Facening safety at a glance

Facening overall Not established There is no reliable information available to judge the safety of a product called Facening.
Pregnancy Avoid With no identity or safety data, it is safest to avoid use during pregnancy.
Breastfeeding Avoid With no identity or safety data, it is safest to avoid use while breastfeeding.

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

Still wondering about combining Daratumumab and Facening? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Daratumumab’s Own FDA Label Lists

This is not an interaction — none of it involves Facening. These are the most notable effects listed in the ADVERSE REACTIONS section of Daratumumab’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. 6 of them are worth acting on rather than waiting out — marked below.

  • Dehydration Worth acting on
  • A low white blood cell count Worth acting on mentioned in 4.9% of FDA reports for Daratumumab
  • A low platelet count Worth acting on
  • Anemia Worth acting on
  • Shortness of breath Worth acting on
  • A higher chance of infection Worth acting on mentioned in 5.0% of FDA reports for Daratumumab
  • Numbness or tingling mentioned in 3.7% of FDA reports for Daratumumab
  • Cough
  • Fever
  • Constipation

Showing the 10 most notable of 14 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 Daratumumab. Read the label on DailyMed › Where a percentage is shown, it is the share of 42,488 voluntary FDA FAERS reports for Daratumumab that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Facening’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Facening side to compare — that is a limit of the record, not a statement that Facening has no side effects.

How much people look this up

Where Facening and Daratumumab 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 Facening
Steady interest

#1,019 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Daratumumab
Steady interest

#2,591 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 Facening reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Facening and Daratumumab records this page draws on were last updated June 20, 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 Facening

What is Facening?

We could not find reliable information about a supplement or herb called "Facening." This name does not match any recognized plant, dietary supplement, or herbal product in trustworthy medical or botanical sources. Because we cannot confirm what it is, we cannot vouch for its safety or benefits, and you should speak with a pharmacist or doctor before using any product sold under this name.

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

Facening: dosing

There is no established or recommended dose for "Facening," because we cannot confirm what it is. We cannot suggest any amount to take.If you have a specific product, do not assume a label dose is safe or accurate. Bring the product and its full ingredient list to a pharmacist so they can help you understand what it is and whether it is reasonable to use.

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

Read the full Facening monograph & all interactions
Medication

About Daratumumab Injection

What Is Daratumumab Injection Used For?

Brand name: Darzalex

Darzalex is used to treat adult patients with multiple myeloma (a cancer of plasma cells in the bone marrow). It is used in several different settings: for people newly diagnosed who cannot have a stem cell transplant, for those who are eligible for a stem cell transplant, and for those whose myeloma has come back or stopped responding to earlier treatments.

Darzalex can be used alone or in combination with other medicines such as lenalidomide, bortezomib, pomalidomide, carfilzomib, thalidomide, melphalan, prednisone, and/or dexamethasone. The specific combination depends on where a patient is in their treatment journey and which prior therapies they have received.

Most-Reported Side Effects for Daratumumab

From FAERS, the FDA’s public side-effect reporting system (42,488 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Plasma cell myeloma 3,971 reports
Infusion related reaction 2,703 reports
Pneumonia 2,104 reports
Neutropenia 2,097 reports
Fatigue 1,962 reports
See full Daratumumab Injection drug information
Keep checking

Other Drugs & Facening

Browse every other medication we’ve checked against Facening — 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 Facening 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 Facening list.

See the full Facening interactions page
See every supplement checked against Daratumumab, ranked by severity
Evidence & sources

Facening References

The 3 references that drive our Facening 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. Alam M, Walter AJ, Geisler A, et al. Association of Facial Exercise With the Appearance of Aging. JAMA Dermatol. 2018;154(3):365-367. PubMed
  2. Alam M, Geisler A, Warycha M, et al. Effect of postinjection facial exercise on time of onset of botulinum toxin for glabella and forehead wrinkles: A randomized, controlled, crossover clinical trial. J Am Acad Dermatol. 2019;80(4):1144-1147. PubMed
  3. Pitakpatapee Y, Soontrapa P, Suengtaworn A, et al. Effect of combined facial exercise with botulinum toxin A on health-related quality of life in Thai adults with hemifacial spasm: a randomised controlled pilot cross-over trial. J Neurol Neurosurg Psychia PubMed

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 Facening and Daratumumab Together: Common Questions

Is it safe to take Facening with Daratumumab?
We do not list a known interaction between Facening and Daratumumab. 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.

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

Where next

Keep Exploring

Facening monograph Uses, safety profile, and every drug interaction in one place Daratumumab Injection drug information The full plain-English guide to this medication Daratumumab supplement interactions Every supplement checked against Daratumumab, 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 3 citations behind this page Ask a pharmacist Free, personal answer from our licensed team

Still Have a Question About Daratumumab and Facening?

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.