Drug & supplement interaction

Andarine + Methyltestosterone Buccal

Methyltestosterone Buccal brand names: Oreton Buccal, Android 5.

Moderate Interaction
The bottom line Moderate

Andarine has a moderate interaction with Methyltestosterone Buccal. Due to its androgenic properties, Andarine (S-4) may theoretically interact with other androgenic drugs, potentially increasing the risk of side effects associated with androgenic activity (source: https://pubmed.ncbi.nlm.nih.gov/12604714/).

Read the full interaction report
SeverityModerate
LikelihoodPossible
EvidenceC
What do Severity, Likelihood & Evidence mean?
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Interaction report

Andarine and Methyltestosterone Buccal

Here is the interaction we found between these two, with the evidence behind it.

Moderate

Androgens

Why this applies to Methyltestosterone Buccal

Methyltestosterone Buccal falls under Androgens — the group Andarine interacts with.

Due to its androgenic properties, Andarine (S-4) may theoretically interact with other androgenic drugs, potentially increasing the risk of side effects associated with androgenic activity (source: https://pubmed.ncbi.nlm.nih.gov/12604714/). These side effects can include masculinization, virilization, acne, hair loss, increased libido, aggression, mood changes, and liver toxicity.
Severity Moderate Likelihood Possible Evidence C

Interaction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.

Dr. Brian Staiger, PharmD, BCPS
Dr. Brian Staiger explains PharmD, Clinical Pharmacist

Here's the simple version: both Andarine and methyltestosterone act on the same androgen receptors that testosterone normally uses. So instead of one source of hormone activity, you'd have two pushing in the same direction. That stacking can amplify the very effects methyltestosterone already causes, like acne, oily skin, hair loss or unwanted hair growth, voice changes, mood swings or irritability, increased sex drive, and strain on the liver (methyltestosterone is known to be tough on the liver).

To be fair, this concern is mostly theoretical and the evidence is limited. But Andarine isn't an approved or legal supplement, and its safety in people isn't really known. I wouldn't combine these. Please talk with your doctor or pharmacist before changing anything.

What These Ratings Mean

Every interaction above is graded three ways — here’s the key to each label.

Severity how clinically significant the interaction is
Major

Clinically significant. Avoid the combination, or use only under close professional supervision.

Moderate

Usually worth avoiding or managing — may need monitoring, a dose change, or timing apart.

Minor

Generally not serious. Be aware of it and mention it to your pharmacist.

Likelihood how strong the evidence is that the interaction actually happens in people
  • LikelyWell-controlled human studies have demonstrated the likely existence of this interaction.
  • ProbableInteraction has not been documented in well-controlled studies, however, the interaction has been demonstrated in some small human studies or in controlled animal studies in conjunction with multiple case reports.
  • PossibleInteraction has been documented in animal or in lab research, or the interaction has been documented in humans but is limited to case reports or conflicting clinical research exists.
  • UnlikelyInteraction has been demonstrated in animal or in lab research but has been shown not to occur in humans.
Evidence the quality of the studies behind the rating (graded A–D)
  • AHigh-quality meta-analysis (quantitative systematic review).
  • BCase-control study.
  • CConsensus.
  • DAnecdotal evidence.

These ratings are for information only. Never start, stop, or otherwise change your therapy before speaking with your provider.

Keep it in perspective

Andarine Also Interacts With Other Medications

Andarine has 8 moderate known drug interactions in our database — the Methyltestosterone Buccal one above is one of them. If you take anything else, check it against the full list below.

Taking anything else?

Check Another of Your Medications Against Andarine

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

Everything else you take

See Every Supplement That Interacts With Methyltestosterone Buccal

This page covers Andarine only. If you take other supplements — a multivitamin, a sleep aid, something for joints — the Methyltestosterone Buccal page lists 73 supplements it has a documented interaction with, worst first, each one explained.

The most serious there right now: Activated Charcoal (major), Beer (major), Siberian Cocklebur (major), Wine (major) and 1-androsterone (moderate).

By severity: 4 major · 53 moderate · 16 minor.

From our pharmacist’s overview on the Methyltestosterone Buccal page

“Methyltestosterone buccal (Oreton Buccal, Android 5) is an androgen that can strain the liver on its own, and 38 of the 73 supplements on this list can add to that liver stress, so real care is warranted. Two of the four major entries are alcohol itself, beer and wine, since drinking on top of a liver-taxing drug raises the risk of dam…”

Reviewed by 2 · Jul 18, 2026

Open the Methyltestosterone Buccal interaction page

One more smart check

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

We hold 13 real supplement products containing Andarine, each one broken down to its full ingredient list — and combination products often carry several ingredients besides Andarine. Your product may carry other ingredients that interact with Methyltestosterone Buccal too, on top of Andarine — and those would not show on this page. Find your product and we’ll check every ingredient on its label:

How much people look this up

Where Andarine and Methyltestosterone Buccal 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 Andarine
Steady interest

#1,138 of 1,452 supplements looked up here in the last 7 days

29 days ago today
Medication Methyltestosterone Buccal
Steady interest

#1,481 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.

Supplement

About Andarine

What is Andarine?

Andarine
  • Muscle building
  • Strength gains
  • Fat loss / body recomposition
  • Athletic performance enhancement
  • Bone density support

Andarine (S-4) is a synthetic selective androgen receptor modulator (SARM) that is not approved by the FDA for human use and is banned in sports. It is not a legal dietary supplement ingredient, its long-term safety in people is unknown, and reported side effects include vision changes and possible liver and hormone problems. Because of these risks and its illegal status, we do not recommend using it.

Read the full Andarine monograph & all interactions
Keep checking

Other Drugs & Andarine

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

0Major
8Moderate
0Minor
2,821No known interaction
Moderate

8 interactions

No interaction 2,821 drugs checked — show the list
Sources

Sources & How We Checked

Interaction details are evidence-graded and sourced from the Natural Medicines database. The medication overview comes from MedlinePlus.

Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.

Parts of this content are provided by the Therapeutic Research Center, LLC.

DISCLAIMER: Currently this does not check for drug-drug interactions. This is not an all-inclusive comprehensive list of potential interactions and is for informational purposes only. Not all interactions are known or well-reported in the scientific literature, and new interactions are continually being reported. Input is needed from a qualified healthcare provider including a pharmacist before starting any therapy. Application of clinical judgment is necessary.

© 2021 Therapeutic Research Center, LLC

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Pharmacist Counseling Corner

Taking Andarine and Methyltestosterone Buccal Together: Common Questions

Can you take Andarine with Methyltestosterone Buccal?
There is a moderate interaction, so it may be acceptable with monitoring or timing changes — but check with your pharmacist first. Read the full details on this page and confirm with your pharmacist before combining them.
How serious is the Andarine and Methyltestosterone Buccal interaction?
We rate it Moderate. This combination may require monitoring, a dose adjustment, or separating the times you take each one. Consult your pharmacist before using them together.

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

Still Have a Question About Methyltestosterone Buccal and Andarine?

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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.