Drug & supplement interaction

Beef Tallow + Ospemifene

Ospemifene brand name: Osphena.

No Known Interaction
The bottom line No known interaction

We found no known interaction between Beef Tallow and Ospemifene 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. Additionally, although there is no interaction, the label for Ospemifene states a food rule worth keeping to.

Know someone taking this? Share
Interaction report

Beef Tallow and Ospemifene

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 Ospemifene and Beef Tallow 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 Beef Tallow at all — not against Ospemifene, 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.

Beef Tallow safety at a glance

Beef Tallow overall Use caution Generally recognized as safe as a food, but it is high in saturated fat, so use in moderation.
Pregnancy Likely Safe When used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of using beef tallow in amounts g... Read the full pregnancy detail
Breastfeeding Likely Safe When used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of using beef tallow in amounts g... 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 Ospemifene and Beef Tallow? Ask Dr. Brian Staiger, PharmD, BCPS directly ›
What to actually watch for

What Ospemifene’s Own FDA Label Lists

This is not an interaction — none of it involves Beef Tallow. These are the most notable effects listed in the ADVERSE REACTIONS section of Ospemifene’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.

  • A stroke or mini-stroke Worth acting on
  • Blood clots Worth acting on
  • Bleeding or bruising Worth acting on mentioned in 5.8% of FDA reports for Ospemifene
  • A severe allergic reaction Worth acting on
  • Hives Worth acting on
  • An allergic reaction Worth acting on
  • Flushing mentioned in 14.3% of FDA reports for Ospemifene
  • Muscle pain mentioned in 7.5% of FDA reports for Ospemifene
  • Sweating
  • Itching

Showing the 10 most notable of 12 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 Ospemifene. Read the label on DailyMed › Where a percentage is shown, it is the share of 2,601 voluntary FDA FAERS reports for Ospemifene that mention that effect — a reporting proportion, not an incidence rate and not evidence the drug caused it. Beef Tallow’s licensed record lists no adverse effects our clinical vocabulary could match, so there is no Beef Tallow side to compare — that is a limit of the record, not a statement that Beef Tallow has no side effects.

Special populations

Beef Tallow in Pregnancy & Breastfeeding

Pregnancy And Lactation Likely Safe

When used orally in the amounts commonly found in foods. There is insufficient reliable information available about the safety of using beef tallow in amounts greater than those commonly found in the diet during pregnancy or lactation.

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

How to take them

Some Ospemifene Products Have a Food Rule — Beef Tallow Should Not Break It

At least one FDA label for a product containing Ospemifene says to take it with food. If you take Beef Tallow on an empty stomach out of habit, keep them separate — and take Ospemifene with a meal where the label says to.

This may not be true of your version. Food instructions belong to the product, not the ingredient: two Ospemifene products can carry different directions, and extended-release forms often differ from immediate-release ones. The label we read is quoted below — check the directions on your own box or bottle, or ask your pharmacist, for how to take the exact product you were given.

One tablet taken orally once daily with food.

From the Dosage and Administration section of the FDA label we read for Ospemifene — where that label names a specific product, the instruction is that product's. Read the label on DailyMed ›

A food rule is not an interaction — it is about how much of the medicine you absorb. The directions that came with your own product, and your pharmacist, outrank anything on this page.

Everything else you take

See Every Supplement That Interacts With Ospemifene

This page covers Beef Tallow only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Ospemifene page lists 155 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Grapefruit (major), St. John's Wort (major), Tiratricol (major) and Acacia Rigidula (moderate).

By severity: 4 major · 112 moderate · 39 minor.

From our pharmacist’s overview on the Ospemifene page

“Women prescribed ospemifene (Osphena) for painful intercourse after menopause are often the same women reaching for St. John's wort for mood or grapefruit juice at breakfast, and both sit among the four major-rated interactions on this page, so the list deserves genuine care.”

Reviewed by 2 · Jul 18, 2026

Open the Ospemifene interaction page

How much people look this up

Where Beef Tallow and Ospemifene 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 Beef Tallow
Steady interest

#1,143 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Ospemifene
Steady interest

#1,653 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 Beef Tallow reference on this page ↓
  • Freshness: we automatically re-check this combination every week — this pair was last verified September 20, 2026. The Beef Tallow and Ospemifene 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 Beef Tallow

What is Beef Tallow?

  • Cooking and frying fat
  • Skin moisturizer and balm
  • Homemade skin care and soaps
  • Part of ancestral or traditional diets
  • Lip balm and body care

Beef tallow is rendered fat from cattle used as a cooking fat and, more recently, as a natural skin moisturizer. It is mostly saturated and monounsaturated fat, so it is calorie-dense and should be used in moderation; strong human evidence for health benefits beyond being a cooking fat is limited. Talk with your pharmacist or doctor before using it as a supplement, especially if you have heart or cholesterol concerns.

Rendered fat from cattle (Bos taurus), usually from around the kidneys (suet) or other fatty tissue · Solid cooking fat, cooking oil, skin balms and salves, soaps, and some capsules or supplements

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

Beef Tallow: dosing

There is no established medicinal dose for beef tallow. It is used as a cooking fat in the same way you would use butter or oil, and portion sizes should follow normal dietary guidelines for fats.Because it is high in saturated fat, most health authorities suggest limiting total saturated fat intake. If you use tallow for cooking, use it in moderation as part of a balanced diet.For skin use, follow the directions on the specific product you buy.

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

Read the full Beef Tallow monograph & all interactions
Medication

About Ospemifene

What Is Ospemifene Used For?

Brand name: Osphena

Osphena (ospemifene) is used to treat two specific symptoms of vulvar and vaginal atrophy — the thinning and drying of vaginal tissues that can happen after menopause. The first is moderate to severe dyspareunia (painful intercourse), and the second is moderate to severe vaginal dryness.

Both of these uses are for postmenopausal women only. Osphena is not used in children or in women who are pregnant or may become pregnant.

Most-Reported Side Effects for Ospemifene

From FAERS, the FDA’s public side-effect reporting system (2,601 reports, all brands). Reports are voluntary and are not proof the drug caused the effect.

Hot flush 372 reports
Headache 209 reports
Muscle spasms 194 reports
Vaginal haemorrhage 150 reports
Vaginal discharge 134 reports
See full Ospemifene drug information
Keep checking

Other Drugs & Beef Tallow

Browse every other medication we’ve checked against Beef Tallow — 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
No interaction 2,829 drugs checked — show the list
Evidence & sources

Beef Tallow References

The 9 references that drive our Beef Tallow 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. Sacks FM, Lichtenstein AH, Wu JHY, et al.; American Heart Association. Dietary Fats and Cardiovascular Disease: A Presidential Advisory From the American Heart Association. Circulation 2017;136(3):e1-e23.
  2. Denke MA, Grundy SM. Effects of fats high in stearic acid on lipid and lipoprotein concentrations in men. Am J Clin Nutr 1991;54(6):1036-40. PubMed
  3. Schwab US, Vogel S, Lammi-Keefe CJ, et al. Varying dietary fat type of reduced-fat diets has little effect on the susceptibility of LDL to oxidative modification in moderately hypercholesterolemic subjects. J Nutr 1998;128(10):1703-9. PubMed
  4. Shen X, Miao S, Zhang Y, et al. Stearic acid metabolism in human health and disease. Clin Nutr 2025;44:222-238. PubMed
  5. Petersen KS, Maki KC, Calder PC, et al. Perspective on the health effects of unsaturated fatty acids and commonly consumed plant oils high in unsaturated fat. Br J Nutr 2024;132(8):1039-1050. PubMed
  6. Zhou L, Zheng M, Zhang T, et al. Chemical property, bioactive constituent and volatile compound changes of beef tallow during an improved flavor-retaining refining approach. Food Chem 2025;477:143491. PubMed
  7. Limmatvapirat C, Limmatvapirat S, Krongrawa W, et al. Beef tallow: Extraction, physicochemical property, fatty acid composition, antioxidant activity, and formulation of lotion bars. J. Appl. Pharm. Sci. 2021;11(9):18-28. DOI
  8. Kawahara S, Takenoyama SI, Nagato C, Muguruma M, Ito T, Yamauchi K. Evaluation of beef tallow as a natural source of conjugated linoleic acid. Animal Sci. J. 2002;73(6):533-8. DOI
  9. US Department of Agriculture (USDA). Fat, beef tallow. April 2018. Available at: https://fdc.nal.usda.gov/food-details/171400/nutrients. Accessed April 9, 2025.

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 Beef Tallow and Ospemifene Together: Common Questions

Is it safe to take Beef Tallow with Ospemifene?
We do not list a known interaction between Beef Tallow and Ospemifene. 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.
Should I take Beef Tallow and Ospemifene at the same time of day?
At least one FDA label for a product containing Ospemifene says to take it with food. If you take Beef Tallow on an empty stomach out of habit, keep them separate and take Ospemifene with a meal where the label says to. Food instructions belong to the product rather than the ingredient — two Ospemifene products can differ — so check the directions on your own box. This is about absorption, not an interaction.
Does Ospemifene interact with any supplements?
Yes. Ospemifene has documented interactions with 155 supplements in our database — Beef Tallow is not one of them. The Ospemifene interaction page linked on this page lists every one, ranked by severity.

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

Still Have a Question About Ospemifene and Beef Tallow?

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.