High Intensity Ingredients & Drug Interactions
What is this page for?
First and foremost: checking High Intensity against your medications. The heart of this page is the interaction checker and the full interaction report — how this product’s ingredients may interact with prescription and over-the-counter medicines you may be taking.
Around that, we add a pharmacist’s high-level view of the product as a whole — what’s inside, the evidence for its stated use, how transparent the label is, and what safety data exists — so you can see the full picture in one place. It’s educational information from our licensed clinical databases and the clinical staff at HelloPharmacist — not medical advice — and we don’t sell or endorse products. Our editorial policy
High Intensity is a dietary supplement by PowerBar Elite Series with 1 active ingredient. Its ingredients are commonly taken for athletic performance and endurance, high-intensity exercise capacity, reducing muscle fatigue.We don’t currently list a known drug interaction for its mapped ingredients — but that doesn’t guarantee none exist, so always confirm with your pharmacist.
HelloPharmacist Scorecard of High Intensity by PowerBar Elite Series
Our pharmacy team’s full take, with four database checks built into the cards below — a summary of what is known, not a grade of the product itself.
What’s inside
Full disclosure
PowerBar Elite Series High Intensity is a single-ingredient supplement containing beta-alanine, an amino acid your body uses to build carnosine, a compound that helps buffer acid buildup in muscle during intense exercise. The tablet also contains inactive ingredients (hydroxypropyl methylcellulose, stearic acid, magnesium stearate, and silicon dioxide) that help form and stabilize the pill.
Does it work?
Moderate evidence
Beta-alanine is possibly effective for athletic performance and physical performance — meaning there's some evidence it may help, but the research isn't airtight yet. For other uses listed here — age-related cognitive decline, chronic obstructive pulmonary disease (COPD), general cognitive function, and menopausal symptoms — there isn't enough reliable evidence to know whether it works.
How safe is it?
Well-documented data
Beta-alanine is generally well tolerated in healthy adults. The most common side effect is harmless skin tingling and flushing, usually starting on the scalp within 20 minutes of taking it and lasting about an hour.
This effect is dose-dependent: it's very mild or absent at lower doses and becomes more noticeable at higher ones. Long-term safety at high doses hasn't been well studied.
The safety data advises against use during pregnancy and breastfeeding because there isn't enough information to know it's safe in these situations — talk with your doctor or pharmacist before taking this if you're pregnant, planning to become pregnant, or breastfeeding.
Meds to double-check
No known interactions
No interactions are documented in our data for the beta-alanine in this product. That doesn't mean interactions can't happen — it means we have no documented cases.
Run your specific medications through the checker on this page, and talk with your doctor or pharmacist about whether this supplement fits your regimen.
The bottom line
Scorecard at a glanceFully disclosed formula with some supporting evidence for its stated purpose. No medication interactions are currently documented, and safety information is well characterized.
If you're an athlete or doing intense physical training, beta-alanine may be worth considering — the evidence suggests it could help performance. The main thing to expect is harmless tingling and flushing, especially at higher doses.
Steer clear during pregnancy and breastfeeding. Check with your own doctor or pharmacist before starting, especially if you take any medications.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 1 of 1 active ingredient matched to our full ingredient reviews (monographs). Based on the product label dated Nov 25, 2011.
This Scorecard evaluates available label information, ingredient evidence, and known medication-safety considerations. It does not independently verify product identity, purity, potency, contamination, or manufacturing quality. How these ratings are computed
General information
Key facts about High Intensity, straight from the product label.
| Brand | PowerBar Elite Series |
|---|---|
| Barcode (UPC) | 097421888102 |
| Net contents | 112 Tablet(s) |
| Market status | On market |
| Date entered into DSLD | Nov 25, 2011 |
| DSLD ID | 2592 |
| Product type | Non-nutrient/non-botanical |
| Supplement form | Tablet Or Pill |
| Dietary claims / uses | All Other, Structure/Function |
| Intended target group(s) | Adult (18 - 50 Years) |
Everything in this section is reproduced from the manufacturer’s own product label — it’s the label speaking, not HelloPharmacist. We show it so you can see exactly what the maker states; we don’t verify or endorse those statements.
Supplement Facts
The label details for High Intensity by PowerBar Elite Series, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Calories | 10 {Calories} | -- |
| Beta-Alanine | 1600 mg | -- |
Other ingredients: Hydroxypropyl Methylcellulose, Stearic Acid, Magnesium Stearate, Silicon Dioxide
Tap any ingredient to jump to its full detail below.
These statements are the manufacturer’s wording, reproduced from the product label — the label is saying it, not HelloPharmacist. We don’t verify or endorse them.
FDA Statement of Identity
SUSTAINED RELEASE BETA ALANINE DIETARY SUPPLEMENT
Suggested/Recommended/Usage/Directions
Directions: First 4 weeks, take 2 tablets, twice daily. Thereafter, 2 tablets, once daily. Results typically seen in 4-8 weeks.
Precautions
KEEP OUT OF REACH OF CHILDREN.
AS WITH ANY SUPPLEMENT, IF YOU ARE PREGNANT, NURSING, OR TAKING MEDICATION, CONSULT YOUR DOCTOR BEFORE USE.
WARNING: FOR ADULTS ONLY.
FDA Disclaimer Statement
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Storage
Store tightly in a cool, dry place.
General
273587
General Statements
HELPS ENHANCE HIGH INTENSITY PERFORMANCE*
Nestle Nutrition
POWERBAR is supported by Nestlé’s worldwide leadership in nutritional science.
See PowerBar.com for science, training plans and other details.
U.S. Patents 7,504,376, 6,426,361, 5,965,596, and other patents pending.
Brand IP Statement(s)
©2010 Nestlé
PowerBar(R) is a registered trademark of Société des Produits Nestlé S.A., Vevey, Switzerland.
PUSH YOUR LIMITS. PowerBar(R) High Intensity sustained release beta alanine tablets provide an even supply of beta alanine to muscles. Beta alanine works by increasing muscle carnosine which buffers muscle acids and reduces muscle burn and fatigue.* Designed for endurance, team and strength athletes.
Seals/Symbols
NSF(R)
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
High Intensity by PowerBar Elite Series label
The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.
Label images are published by the NIH Dietary Supplement Label Database for the version of this product on file. Always read your actual product label.
View the full label (PDF)The Ingredients in High Intensity by PowerBar Elite Series
This is the 1 active ingredient this product is made of. Select it to open its full monograph.
Serving size2 Tablet(s) Dosage formTablet Or Pill Servings per container56 Amounts shown are per serving.
Beta-Alanine
No knowninteractions
Beta-alanine is an amino acid taken mostly by athletes to raise muscle carnosine, which may help buffer acid and reduce fatigue during short, high-int...
Beta-Alanine monograph & interactionsOther (inactive) ingredients: Hydroxypropyl Methylcellulose, Stearic Acid, Magnesium Stearate, Silicon Dioxide. These complete the product’s ingredient list but are not active constituents.
High Intensity by PowerBar Elite Series Drug Interactions
We don’t currently list any known drug interactions for the mapped ingredients in High Intensity. This doesn’t guarantee none exist — always confirm with your pharmacist before combining a supplement with your medications.
Brand information
Manufacturer and brand details for High Intensity, from the product label.
High Intensity by PowerBar Elite Series: Common Questions
Does High Intensity by PowerBar Elite Series interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
What's the tingling I might feel?
Does beta-alanine actually work for athletic performance?
Can I take this if I'm pregnant or breastfeeding?
Is beta-alanine safe to use long-term?
What are the inactive ingredients in this tablet?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if High Intensity is safe with your meds?
Our pharmacists answer your medication & supplement questions — free.
Label information is sourced from the NIH Dietary Supplement Label Database and reflects the product version on file; always read your actual product label. This page is for education only and is not a substitute for professional medical advice. Confirm with your pharmacist or doctor before combining supplements and medications.
The Full Monographs Behind High Intensity’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Sources & How We Checked
High Intensity's label data comes from the NIH Dietary Supplement Label Database; the ingredient interaction data is from the Natural Medicines database, reviewed by our pharmacists.
- NIH Dietary Supplement Label Database (DSLD) — The official product label on file for this supplement.
- Natural Medicines (Therapeutic Research Center) — Evidence-graded clinical reference behind the ingredient interaction data.
Content is written and reviewed by licensed HelloPharmacist pharmacists. See our data sources and editorial standards for how this information is built and checked.
The 13 references behind this product’s interaction data
Every citation that drives the interaction findings for this product’s ingredients, from the evidence-graded Natural Medicines (TRC Healthcare) database. Open an ingredient to browse its citations — links open the study on PubMed or the publisher’s site.
Beta-alanine 13 references
- Harris RC, Tallon MJ, Dunnett M, et al. The absorption of orally supplied beta-alanine and its effect on muscle carnosine synthesis in human vastus lateralis. Amino Acids 2006;30:279-89.
- Hill CA, Harris RC, Kim HJ, et al. Influence of beta-alanine supplementation on skeletal muscle carnosine concentrations and high intensity cycling capacity. Amino Acids 2007;32:225-33.
- Bellinger PM, Minahan CL. The effect of ß-alanine supplementation on cycling time trials of different length. Eur J Sport Sci 2016;16(7):829-36.
- Chung W, Shaw G, Anderson ME, et al. Effect of 10 week beta-alanine supplementation on competition and training performance in elite swimmers. Nutrients 2012;4(10):1441-53. PubMed
- Glenn JM, Gray M, Stewart R, et al. Incremental effects of 28 days of beta-alanine supplementation on high-intensity cycling performance and blood lactate in masters female cyclists. Amino Acids 2015;47(12):2593-600. PubMed
- Gross M, Bieri K, Hoppeler H, Norman B, Vogt M. Beta-alanine supplementation improves jumping power and affects severe-intensity performance in professional alpine skiers. Int J Sport Nutr Exerc Metab 2014;24(6):665-73. PubMed
- Howe ST, Bellinger PM, Driller MW, Shing CM, Fell JW. The effect of beta-alanine supplementation on isokinetic force and cycling performance in highly trained cyclists. Int J Sport Nutr Exerc Metab 2013;23(6):562-70. PubMed
- Sweeney KM, Wright GA, Glenn Brice A, Doberstein ST. The effect of beta-alanine supplementation on power performance during repeated sprint activity. J Strength Cond Res 2010;24(1):79-87.
- Décombaz J, Beaumont M, Vuichoud J, Bouisset F, Stellingwerff T. Effect of slow-release ß-alanine tablets on absorption kinetics and paresthesia. Amino Acids 2012;43(1):67-76. Erratum in: Amino Acids 2013;45(4):1015.
- Stellingwerff T, Anwander H, Egger A, et al. Effect of two ß-alanine dosing protocols on muscle carnosine synthesis and washout. Amino Acids 2012;42(6):2461-72. PubMed
- da Silva RP, de Oliveira LF, Saunders B, et al. Effects of ß-alanine and sodium bicarbonate supplementation on the estimated energy system contribution during high-intensity intermittent exercise. Amino Acids. 2019;51(1):83-96. PubMed
- Varanoske AN, Hoffman JR, Church DD, et al. Comparison of sustained-release and rapid-release ß-alanine formulations on changes in skeletal muscle carnosine and histidine content and isometric performance following a muscle-damaging protocol. Amino Acids. PubMed
- Perim P, Gobbi N, Duarte B, et al. Beta-alanine did not improve high-intensity performance throughout simulated road cycling. Eur J Sport Sci 2021. PubMed
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