Supplement · Grade B

Beta-Alanine and medications.

Not yet catalogued in the Distil interactions database. We surface that distinction explicitly.

Beta-Alanine is in the Distil supplement database, evidence Grade B. The page below lists every medication we have explicitly assessed it against.

Beta-alanine is an amino acid that raises muscle carnosine, an intracellular buffer that mops up the acid your muscles produce during hard, repeated efforts. Higher carnosine tends to delay fatigue, and the evidence sits at Grade B, but it is much narrower than beta-alanine's reputation suggests: the benefit is specific to hard efforts lasting roughly one to ten minutes. A meta-analysis of 40 studies in 1,461 people found a moderate effect on exercise capacity in that window, and a second analysis found improvement in efforts of one to four minutes. Outside it the picture is flat. A 2026 meta-analysis of 17 trials found no effect at all on repeated sprint ability, unmoderated by dose, duration, exercise type or training status, and a 52-trial network analysis reported non-significant or context-specific effects. It is unlikely to help single maximal lifts, repeated sprints, or long steady cardio. Vegans often respond more strongly because their dietary carnosine baseline is lower. The one thing to flag upfront is paraesthesia, a harmless tingling or flushing that is dose-dependent, not an allergic reaction; a sustained-release form reduces it. Typical dosing is 3.2 to 6.4g daily, split into roughly 800mg portions to keep the tingling manageable. No significant drug interactions are documented. If your training involves sustained hard efforts rather than repeated sprints, it may be worth a trial, but set expectations against the evidence above rather than the marketing.

We have not yet completed an explicit assessment of medications for Beta-Alanine in the Distil interactions database. We surface this distinction deliberately: the Distil checker tells you when we have explicitly assessed a pair and when we have not, because both are useful information. If you take Beta-Alanine alongside a medication, the checker below will surface anything already in our database, and the missing-item form at the bottom of the page routes uncatalogued pairs into our next curation pass.

What this list does not say. Pairs not flagged here are not implicitly safe. They are either not yet in our database, or fall outside our inclusion scope. Use the checker below to surface any medication, and submit a missing item if you take something we have not catalogued.

Database last updated 2026-11-14. Free for everyone. No account, no paywall. · Browse coverage A-Z

No affiliates. No commission. We earn nothing on what you buy.

For adults over 18. This tool gives evidence-graded information, not medical advice. Always discuss changes with your GP or pharmacist, especially if you take any medication, are pregnant, breastfeeding, or have a serious health condition.

Your supplements

Add every supplement you take. Type a name and click each match to add it, as many as you like.

Your medications

Add all your medications, brand or generic. Type and click each match to add it.

Anything we should know? (optional)

Pick any that apply. We adjust the findings where context changes the answer.

I confirm I am 18 or over. This tool gives evidence-graded information, not medical advice; always discuss changes with your GP or pharmacist.

Add all the supplements and medications you take, then check them together in one go.

Not sure where to start? Try one:

How the checker decides

Every result has a source

Each pair we have assessed is cited to a published study (PMID) or the British National Formulary, so you can read the source yourself.

Four kinds of answer

Severe, caution, no known interaction, and not yet assessed. A pair we have not assessed is never shown as clear.

Severe
Caution
No known interaction
Not yet assessed

Nothing in our data is not a clearance

When nothing in our data records a problem with a pair, the result says no known interaction at typical doses, which is not a clearance: your pharmacist or GP can check the pair against your full medical history.

Read the full methodology

The full report

A full supplement review, built around you, not a generic stack.

The free checker answers one interaction question at a time. A Distil report reviews the bigger picture: your goals, diet, medications, current supplements and any blood results you provide, then shows what appears worth keeping, changing, adding or leaving out.

what your diet already covers, so you are not adding a capsule for something food is already handling
which evidence-graded compounds are worth considering for your goals, and which were considered but left out
what to keep, change or stop from what you already take, plus the order to introduce anything new
how your medications and complete supplement stack fit together, with daily timing and a clear point for reassessment

The interaction check is one section of the full report. You also get the reasoning behind each recommendation and the evidence references used.

£49 until 30 June 2027 · £79 from 1 July 2027.

Get my report · £49 See a complete sample report

Something missing?

If a supplement or medication you take isn't in our autocomplete, tell us. What people flag joins the queue of what we add next.

Thanks, that's logged. It joins the queue of what we add next.

Distil's interactions database is reviewed and updated every quarter. We grade evidence transparently and publish our methodology, including every database change, at /about/methodology. This tool is information, not a substitute for clinical judgement. If you take medication and supplements together, your GP or pharmacist can review your full regimen against your medical history. If you want a full personalised stack reasoned against this same database, the Distil report is the next step up.