Major interaction on record — check this product against your medications before combining. Based on 5 of 8 ingredients. Check your meds →
Dietary supplement

Plasmatic EP Ingredients & Drug Interactions

by EST Engineered Sports Technology

Powder Category: Other Combinations
Most serious interaction: Major
The interaction bottom line Most serious interaction: Major

Plasmatic EP is a dietary supplement by EST Engineered Sports Technology with 8 active ingredients. Its ingredients are commonly taken for morning sickness in pregnancy, premenstrual syndrome (pms), preventing or treating b6 deficiency.Based on those ingredients, 1,542 medications have a known interaction with it, the most serious rated major. The ingredients most likely to interact are Vitamin B3, Vitamin B6, Vitamin C. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.

HelloPharmacist Scorecard of Plasmatic EP by EST Engineered Sports Technology

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.

From our pharmacy team — supplement deep dive

What’s inside

Low disclosure
Ingredient Transparency · database check
Low

Most active ingredients don't disclose an individual amount — you can't tell how much of each you're getting.

Why this rating?
  • The label discloses an exact amount for 5 of its 15 active ingredients.
  • “Agmatine Sulfate” is listed as a grouped ingredient — the label doesn't break down how much of each component you get.
  • “Scientifically Dosed Proprietary Formula” is a proprietary blend — the label gives one combined amount (7.04 gm) without saying how much of each component you get.
  • “NOXTREME” is listed as a grouped ingredient — the label doesn't break down how much of each component you get.

Plasmatic EP contains 15 active ingredients designed to support athletic performance and energy. The formula includes B vitamins (B6, B12, B3, and folic acid) for energy metabolism, caffeine anhydrous for mental alertness and performance, beta-alanine for athletic endurance, L-carnitine tartrate to support energy production, and glycine as an amino acid.

It also contains vitamin C for general health, creatinol-O-phosphate, agmatine sulfate, inositol hexaphosphate, echinacea angustifolia (an herbal immune supporter), danshen (a traditional herbal extract), and resveratrol (an antioxidant from plants). The inactive ingredients are citric acid, malic acid, acesulfame K, artificial and natural fruit punch flavor, sucralose, and Red #40.

Does it work?

Strong evidence
Evidence for Intended Use · database check
By FDA rules, dietary supplements can’t claim to treat, cure, or prevent disease — so labels speak in careful marketing language. We discern each product’s intended use from its name, label claims, and label statements, then grade the clinical evidence for that use. How these ratings are computed
Strong

Clinical evidence supports at least one of this product's ingredients for its stated purpose.

Why this rating?
  • The label markets this product for: Athletic performance and workout support.
  • We looked for evidence on: Athletic performance, Exercise endurance, Muscle performance, Physical stamina.
  • The strongest evidence on file: Caffeine is rated "Likely Effective" for Athletic performance (Natural Medicines).
  • Also on file: Beta-alanine is rated "Possibly Effective" for Athletic performance.
  • Also on file: Niacin is rated "Insufficient Reliable Evidence To Rate" for Athletic performance.

Evidence for most ingredients in this product is limited or still being studied. Vitamin B6 is effective for B6 deficiency and certain types of anemia, and possibly effective for pregnancy-related nausea.

Folic acid is effective for folate deficiency and likely effective for preventing neural tube birth defects and managing methotrexate side effects. Vitamin B12 is effective for B12 deficiency.

Caffeine is effective for mental alertness and athletic performance, and has good evidence for postoperative headache relief. Beta-alanine is possibly effective for athletic and physical performance.

For the others — glycine, vitamin C, L-carnitine tartrate, echinacea, danshen, resveratrol, and inositol hexaphosphate — the evidence we hold does not establish their effectiveness for the claimed purposes, or evidence is insufficient.

The evidence, ingredient by ingredient Vitamin B6 Folic Acid Vitamin B12 Vitamin C Niacin

How safe is it?

Well-documented data
Safety Information · database check
Well characterized

Adverse-effect, pregnancy, and general safety data are on file for most of these ingredients.

Why this rating?
  • We hold adverse-effect (side-effect) data for 12 of the 13 matched ingredients.
  • Pregnancy & breastfeeding safety ratings cover 13 of 13.
  • General safety write-ups exist for 13 of 13.
  • Remember: this measures how much safety information exists. Thin data is not the same as being safe.

Most ingredients are generally well tolerated at typical doses. However, high doses of vitamin B6 over time can damage nerves (sensory neuropathy), and doses exceeding 1,000 mg daily pose the highest risk.

Folic acid at recommended doses is safe in pregnancy and breastfeeding. Vitamin C is generally safe at normal amounts but can cause kidney stones in susceptible people at very high doses.

Beta-alanine commonly causes harmless tingling and flushing in the skin, usually starting within 20 minutes of taking it. Caffeine at moderate levels is generally safe for healthy adults, but high doses can cause serious effects; it should be limited in pregnancy and passes into breast milk.

L-carnitine may cause stomach upset and a fish-like body odor at high doses. Echinacea may cause allergic reactions, especially in people sensitive to ragweed.

Danshen can affect blood clotting. Glycine is not well studied long-term and has limited safety data.

Several ingredients (beta-alanine, danshen, resveratrol, echinacea, inositol hexaphosphate) lack enough safety data for pregnancy or breastfeeding — talk with your doctor before use if you are pregnant or nursing.

Side effects, ingredient by ingredient Vitamin B6 Folic Acid Vitamin B12 Vitamin C Niacin

Meds to double-check

Major interaction found
Known Interaction Concern · database check
Major identified

At least one ingredient has a documented Major-severity interaction. Check your medications for a personalized result.

Why this rating?
  • 12 of the 13 matched ingredients can interact with medications — Resveratrol, Ip-6, Niacin, Vitamin B12, Danshen, among others.
  • The most serious interaction on file is rated Major.
  • Some involve high-stakes drug classes: anticoagulant / antiplatelet drugs; immunosuppressants / transplant drugs; cancer treatments; diabetes medications; heart-rhythm medications; lithium; Parkinson's medications.
  • For scale: 1,543 individual medications appear in the full list. A big number alone doesn't make a product dangerous — what matters is whether YOUR medication is on it, so run yours through the interaction checker on this page.

Check your medications against this product if you take blood thinners or antiplatelet drugs (because of danshen, vitamin C, L-carnitine, and resveratrol), digoxin or other heart medications (danshen), blood pressure medications (danshen, vitamin B6, and vitamin C), seizure medications (vitamin B6 and folic acid), ephedrine or stimulants (caffeine), or metformin for diabetes (vitamin B12). If you take clozapine (an antipsychotic), be aware that both caffeine and glycine in this product may interact with it.

Quinolone antibiotics, cimetidine, and certain other drugs can increase caffeine levels.

Check your own medication Run your meds through the checker above

The bottom line

Scorecard at a glanceFormula with limited ingredient disclosure with clinical evidence supporting its stated purpose. Major medication interactions have been identified, and safety information is well characterized.

This is an athletic performance supplement with caffeine and beta-alanine as core ingredients. It's worth considering if you're an athlete looking for endurance support, but you must check your medications first — especially blood thinners, heart drugs, seizure medications, and blood pressure drugs.

If you take any prescription medication at all, run it through the checker on this page before you start. Talk with your pharmacist if you're pregnant, nursing, or have any heart or blood clotting concerns.

Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI

Assessment coverage: 13 of 15 active ingredients 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

At a glance

General information

Key facts about Plasmatic EP, straight from the product label.

Brand EST Engineered Sports Technology
Barcode (UPC) 895524000007
Net contents 139.2 g; 4.9 oz.
Market status On market
Date entered into DSLD Nov 25, 2011
DSLD ID 1966
Product type Other Combinations
Supplement form Powder
Dietary claims / uses All Other, Structure/Function
Intended target group(s) Adult (18 - 50 Years)
From the label
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 Plasmatic EP by EST Engineered Sports Technology, sourced from the NIH Dietary Supplement Label Database.

Supplement Facts

Daily Value (DV) Target Group(s):
Adults and children 4 or more years of age
Minimum serving Sizes:
8.7 Gram(s)
Maximum serving Sizes:
17.4 Gram(s)
Servings per container
15
UPC/BARCODE
895524000007
IngredientAmount% DV
Vitamin B615 mg750%
Folic Acid400 mcg100%
Vitamin B12300 mcg5000%
Glycine0 NP--
Vitamin C65.5 mg110%
Beta-Alanine0 NP--
Caffeine Anhydrous0 NP--
L-Carnitine Tartrate0 NP--
Creatinol-O-Phosphate0 NP--
Agmatine Sulfate0 NP--
Vitamin B322.5 mg110%
Inositol Hexaphosphate0 NP--
Echinacea angustifolia0 NP--
Scientifically Dosed Proprietary Formula7.0375 gm--
NOXTREME0 NP--
GlycoCarn0 NP--
Tashozine0 NP--
EPO-PLAS0 NP--
Resveratrol0 NP--
Carnimax0 NP--
MCP0 NP--
Geranium0 NP--

Other ingredients: Citric Acid, Malic Acid, Acesulfame K, natural and artificial Fruit Punch flavor, Sucralose, Red #40

Tap any ingredient to jump to its full detail below.

Label statements
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

Dietary Supplement

Suggested/Recommended/Usage/Directions

Do not exceed recommended dose.

For best results, always remember to drink at least 64 oz. (8 glasses) of water daily while stacking PLASMATIC EP(TM) with other EST(R) performance products; such as PLASMATIC(TM), ENNERCELL(TM), TEST DRIVE(TM), and others.

Suggested Use: As a dietary supplement, adults take 1-2 scoops of PLASMATIC EP(TM)) with 12-16 oz. of water or your favorite beverage 30-60 minutes prior to workout or sexual encounter.

Use only as directed.

Precautions

Keep out of reach of children.

Warning: Do not use if you are pregnant or nursing, OR at risk for high blood pressure, liver, prostate, diabetes, or psychiatric disease.

Do not purchase if seal is broken

Do not use this product if under the age of 18.

If you are having difficulty sleeping, do not take after 4:00 pm.

If you have a medical condition, please seek professional medical advice before taking this , or any supplement.

This product contains caffeine and shouldn't be taken by individuals wishing to eliminate this ingredient from their diet.

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

Protect from heat, light and moisture.

Store at 15º-30ºC(59º-86º F)

General Statements

*Not a significant source of Calcium*

30 DAY WORKOUT KIT

ENGINEERED SPORTS TECHNOLOGY

EPO & NOS Infusion

Fortified with Clinically Proven GlycoCarn(R) & Tashozine(TM)

Fruit Punch

Performance Augmenter

Product Code: 310

There are no typical results with use of this product.

Brand IP Statement(s)

Elite Performance Series(TM)

May Promote Nitric Oxide & Maximize Pumps Fortified with Tashozine(TM) Can Improve Strength, Power, & Endurance Can Promote EPO Production Can Assist in Reduce Recovery Time

PLASMATIC EP(TM) Exclusive Blend covered by US patents, various international patents, & patents pending. GlycoCarn(R) is a registered trademark of Sigma-tau HealthScience and is manufactured under USA product patent 6703042 and Worldwide Patent EP1202956. The combination of Carnitine and Creatinol-O-Phospate is patented by Sigma-tau Industries under USA patent 6602512. The combination of Carnitine and Resveratrol is patented by Sigma-tau Industries under USA patent 5747536. The combination of Carnitine and Inositol Hexaphosphate is protected by USA patent 6,565,876.

Please Note: PLASMATIC EP(TM) is designed to be used only on workout days. It is not necessary to take PLASMATIC EP(TM) on an empty stomach.

SIGMA-TAU CERTIFIED GlycoCarn(R),USP CLINICAL DOSE

See for yourself

Plasmatic EP by EST Engineered Sports Technology label

The label scan from the NIH Dietary Supplement Label Database. Tap to enlarge.

What’s inside

The Ingredients in Plasmatic EP by EST Engineered Sports Technology

These are the 8 active ingredients this product is made of. Select any to open its full monograph.

Serving size8.7 Gram(s) Dosage formPowder Servings per container15 Amounts shown are per serving.

Most supplement products combine several ingredients, and a medication can interact with the product through any one of them. Each ingredient below shows whether it has known drug interactions.

Vitamin B6

Interacts with
210 drugs
15 mg per serving Form: Pyridoxine Hydrochloride

Vitamin B6 (pyridoxine) is an essential water-soluble vitamin that your body needs for metabolism, brain function, and making red blood cells. It is b...

Vitamin B6 monograph & interactions

Folic Acid

Interacts with
40 drugs
400 mcg per serving

Folic acid is the man-made form of vitamin B9 and is one of the most well-studied supplements, especially for preventing serious birth defects when ta...

Folic Acid monograph & interactions

Vitamin B12

Interacts with
20 drugs
300 mcg per serving Form: Cyanocobalamin

Vitamin B12 (cobalamin) is an essential nutrient your body needs to make red blood cells, keep nerves healthy, and support DNA. Supplements are very h...

Vitamin B12 monograph & interactions

Vitamin C

Interacts with
207 drugs
65.5 mg per serving Form: Ascorbic Acid

Vitamin C (ascorbic acid) is an essential nutrient your body needs but cannot make, so you must get it from food or supplements. It's important for im...

Vitamin C monograph & interactions

Vitamin B3

Interacts with
727 drugs
22.5 mg per serving Form: Niacin

Niacin (vitamin B3) is an essential nutrient your body needs for energy and metabolism, and deficiency is uncommon in most developed countries. Prescr...

Vitamin B3 monograph & interactions

Scientifically Dosed Proprietary Formula

7.0375 gm per serving
  • › NOXTREME
  • › Carnimax
  • › MCP

Other (inactive) ingredients: Citric Acid, Malic Acid, Acesulfame K, Natural and artificial Fruit Punch flavor, Sucralose, Red #40. These complete the product’s ingredient list but are not active constituents.

Interaction report

Plasmatic EP by EST Engineered Sports Technology Drug Interactions

Want to check YOUR meds against Plasmatic EP?

Ask about interactions with your drugs in plain English — “Can I take it with lisinopril?” — and we find you the answer in seconds, ingredient by ingredient.

Go to the checker
1,542Drugs
131 Major 1,377 Moderate 34 Minor

Ingredients driving the most interactions

Vitamin C 207

Each ingredient & the kinds of drugs it affects

For each ingredient in Plasmatic EP with known interactions, here are the types of medications they can affect. Open any type for the detail — or search your exact drug in the checker above.

Vitamin B315 drug types · 727 drugs

Alcohol (Ethanol)

Concomitant use of alcohol and niacin might increase the risk of flushing and hepatotoxicity.
Alcohol can exacerbate the flushing and pruritus associated with niacin. Large doses of niacin might also exacerbate liver dysfunction associated with chronic alcohol use. A case report describes delirium and lactic acidosis in a patient taking niacin 3 grams daily who ingested 1 liter of wine. Advise patients to avoid large amounts of alcohol while taking niacin.

Likelihood Probable Evidence D
Allopurinol (Zyloprim)

Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as allopurinol.
Large doses of niacin can reduce urinary excretion of uric acid, potentially resulting in hyperuricemia. Doses of uricosurics such as allopurinol might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.

Likelihood Probable Evidence C
Anticoagulant/Antiplatelet Drugs

Theoretically, niacin may have additive effects when used with anticoagulant or antiplatelet drugs.
Several cases of clotting factor synthesis deficiency and coagulopathy have been reported in patients taking sustained-release niacin. Also, thrombocytopenia has been reported in patients treated with niacin or niacin plus lovastatin.

Likelihood Possible Evidence D
Antidiabetes Drugs

Niacin can increase blood glucose levels and may diminish the effects of antidiabetes drugs.
Niacin impairs glucose tolerance in a dose-dependent manner, probably by causing or aggravating insulin resistance and increasing hepatic production of glucose. In diabetes patients, niacin 4.5 grams daily for 5 weeks can increase plasma glucose by an average of 16% and glycated hemoglobin (HbA1c) by 21%. However, lower doses of 1.5 grams daily or less appear to have minimal effects on blood glucose. In some patients, glucose levels increase when niacin is started, but then return to baseline when a stable dose is reached. Up to 35% of patients with diabetes may need adjustments in hypoglycemic therapy when niacin is added.

Likelihood Probable Evidence B
Antihypertensive Drugs

Theoretically, niacin may increase the risk of hypotension when used with antihypertensive drugs.
The vasodilating effects of niacin can cause hypotension. Furthermore, some clinical evidence suggests that a one-hour infusion of niacin can reduce systolic, diastolic, and mean blood pressure in hypertensive patients. This effect is not observed in normotensive patients.

Likelihood Possible Evidence B
Bile Acid Sequestrants

Bile acid sequestrants can bind niacin and decrease absorption. Separate administration by 4-6 hours to avoid an interaction.
In vitro studies show that colestipol (Colestid) binds about 98% of available niacin and cholestyramine (Questran) binds 10% to 30%.

Likelihood Possible Evidence D
Gemfibrozil (Lopid)

Theoretically, concomitant use of niacin and gemfibrozil might increase the risk of myopathy in some patients.
A case of myopathy from concomitant use of niacin and gemfibrozil has been reported. Niacin alone has also been associated with cases of myopathy. Using gemfibrozil with niacin might further increase the risk of developing myopathy.

Likelihood Possible Evidence D
Hepatotoxic Drugs

Theoretically, concomitant use of niacin and hepatotoxic drugs might increase the risk of hepatotoxicity.
Niacin has been associated with cases of liver toxicity, especially when used in pharmacologic doses. Sustained-release niacin preparations appear to be associated with a higher risk of hepatotoxicity than immediate-release niacin.

Likelihood Possible Evidence D
Hmg-Coa Reductase Inhibitors ("Statins")

Theoretically, concomitant use of niacin and statins might increase the risk of myopathy and rhabdomyolysis in some patients.
Some case reports have raised concerns that niacin might increase the risk of myopathy and rhabdomyolysis when combined with statins. However, a significantly increased risk of myopathy has not been demonstrated in clinical trials, including those using an FDA-approved combination of lovastatin and niacin (Advicor).

Likelihood Possible Evidence D
Probenecid (Benemid)

Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as probenecid.
Large doses of niacin reduce urinary excretion of uric acid, potentially causing hyperuricemia. Doses of uricosurics such as probenecid might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.

Likelihood Probable Evidence C
Sulfinpyrazone (Anturane)

Theoretically, niacin might antagonize the therapeutic effects of uricosurics such as sulfinpyrazone.
Large doses of niacin reduce urinary excretion of uric acid, potentially causing hyperuricemia. Doses of uricosurics such as sulfinpyrazone might need to be increased to maintain control of gout in patients who start taking niacin. People who have frequent attacks of gout despite uricosuric therapy should avoid niacin.

Likelihood Probable Evidence C
Thyroid Hormone

Theoretically, niacin might antagonize the therapeutic effects of thyroid hormones.
Clinical research and case reports suggests that taking niacin can reduce serum levels of thyroxine-binding globulin by up to 25% and moderately reduce levels of thyroxine (T4). Patients taking thyroid hormone for hypothyroidism might need dose adjustments when using niacin.

Likelihood Probable Evidence D
Transdermal Nicotine (Nicoderm)

Theoretically, concomitant use of niacin and transdermal nicotine might increase the risk of flushing and dizziness.
Niacin and nicotine can both cause flushing and dizziness.

Likelihood Possible Evidence D
Warfarin (Coumadin)

There is limited evidence that niacin may increase the anticoagulant effects of warfarin.
In a case report, a patient on warfarin developed an elevated international normalized ratio (INR) of 3.9 after taking niacin for two weeks. The patient's INR was previously stable, ranging between 2 and 3 in recent months, and no other medication changes were identified. The elevated INR returned to therapeutic range within 4 days following the discontinuation of niacin.

Likelihood Possible Evidence D
Aspirin

Large doses of aspirin might alter the clearance of niacin.
Aspirin is often used with niacin to reduce niacin-induced flushing. Doses of 80-975 mg aspirin have been used, but 325 mg appears to be optimal. Aspirin also seems to reduce the clearance of niacin by competing for glycine conjugation. Taking aspirin 1 gram seems to reduce niacin clearance by 45%. This is probably a dose-related effect and not clinically significant with the more common aspirin dose of 325 mg.

Likelihood Likely Evidence B

Vitamin B65 drug types · 210 drugs

Amiodarone (Cordarone)

Theoretically, vitamin B6 might increase the photosensitivity caused by amiodarone.
Despite initial case reports suggesting that pyridoxine may have a protective effect against amiodarone-induced photosensitivity, preliminary clinical research suggests that pyridoxine may actually exacerbate this adverse effect.

Likelihood Possible Evidence B
Antihypertensive Drugs

Theoretically, vitamin B6 may have additive effects when used with antihypertensive drugs.
Research in hypertensive rats shows that vitamin B6 can decrease systolic blood pressure. Similarly, clinical research in patients with hypertension shows that taking high doses of vitamin B6 may reduce systolic and diastolic blood pressure, possibly by reducing plasma levels of epinephrine and norepinephrine.

Likelihood Possible Evidence B
Phenobarbital (Luminal)

High doses of vitamin B6 may reduce the levels and clinical effects of phenobarbital.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenobarbital, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenobarbital to avoid high doses of vitamin B6.

Likelihood Possible Evidence D
Phenytoin (Dilantin)

High doses of vitamin B6 may reduce the levels and clinical effects of phenytoin.
Preliminary clinical evidence suggests that vitamin B6 200 mg daily can reduce plasma levels of phenytoin, possibly by increasing metabolism. It is not known whether lower doses have any effect. Advise people taking phenytoin to avoid high doses of vitamin B6.

Likelihood Possible Evidence D
Levodopa

Vitamin B6 may increase the metabolism of levodopa when taken alone, but not when taken in conjunction with carbidopa.
Vitamin B6 (pyridoxine) enhances the metabolism of levodopa, reducing its clinical effects. However, this interaction does not occur when carbidopa is used concurrently with levodopa (Sinemet). Therefore, it is not likely to be a problem in most people.

Likelihood Unlikely Evidence D

Vitamin C13 drug types · 207 drugs

Alkylating Agents

Theoretically, antioxidant effects of vitamin C might reduce the effectiveness of alkylating agents.
The use of antioxidants like vitamin C during chemotherapy is controversial. There is concern that antioxidants could reduce the activity of chemotherapy drugs that generate free radicals, such as cyclophosphamide, chlorambucil, carmustine, busulfan, and thiotepa. In contrast, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effect, if any, antioxidants such as vitamin C have on chemotherapy.

Likelihood Possible Evidence D
Aluminum

Vitamin C can increase the amount of aluminum absorbed from aluminum compounds.
Research in animals and humans shows that vitamin C increases aluminum absorption, theoretically by chelating aluminum and keeping it in solution where it is available for absorption. In people with normal renal function, urinary excretion of aluminum will likely increase, making aluminum retention and toxicity unlikely. Patients with renal failure who take aluminum-containing compounds such as phosphate binders should avoid vitamin C supplements in doses above the recommended dietary allowances.

Likelihood Probable Evidence B
Antitumor Antibiotics

Theoretically, the antioxidant effects of vitamin C might reduce the effectiveness of antitumor antibiotics.
The use of antioxidants like vitamin C during chemotherapy is controversial. There is concern that antioxidants could reduce the activity of chemotherapy drugs which generate free radicals, such as doxorubicin. In contrast, some researchers theorize that antioxidants might make chemotherapy more effective by reducing oxidative stress that could interfere with apoptosis (cell death) of cancer cells. More evidence is needed to determine what effects, if any, antioxidants such as vitamin C have on chemotherapy.

Likelihood Possible Evidence D
Estrogens

Vitamin C might increase blood levels of estrogens.
Increases in plasma estrogen levels of up to 55% occur under some circumstances when vitamin C is taken concurrently with oral contraceptives or hormone replacement therapy, including topical products. It is suggested that vitamin C prevents oxidation of estrogen in the tissues, regenerates oxidized estrogen, and reduces sulfate conjugation of estrogen in the gut wall. When tissue levels of vitamin C are high, these processes are already maximized and supplemental vitamin C does not have any effect on estrogen levels. Increases in plasma estrogen levels may occur when patients who are deficient in vitamin C take supplements. Monitor these patients for estrogen-related side effects.

Likelihood Probable Evidence B
Fluphenazine (Prolixin)

Theoretically, vitamin C might decrease levels of fluphenazine.
In one patient there was a clinically significant decrease in fluphenazine levels when vitamin C (500 mg twice daily) was started. The mechanism is not known, and there is no further data to confirm this interaction.

Likelihood Possible Evidence D
Indinavir (Crixivan)

Vitamin C can modestly reduce indinavir levels.
One pharmacokinetic study shows that taking vitamin C 1 gram orally once daily along with indinavir 800 mg orally three times daily reduces the area under the concentration-time curve of indinavir by 14%. The mechanism of this interaction is unknown, but it is unlikely to be clinically significant in most patients. The effect of higher doses of vitamin C on indinavir levels is unknown.

Likelihood Probable Evidence B
Levothyroxine (Synthroid, Others)

Vitamin C can increase levothyroxine absorption.
Two clinical studies in adults with poorly controlled hypothyroidism show that swallowing levothyroxine with a glass of water containing vitamin C 500-1000 mg in solution reduces thyroid stimulating hormone (TSH) levels and increases thyroxine (T4) levels when compared with taking levothyroxine alone. This suggests that vitamin C increases the oral absorption of levothyroxine, possibly due to a reduction in pH.

Likelihood Probable Evidence B
Warfarin (Coumadin)

High-dose vitamin C might reduce the levels and effectiveness of warfarin.
Vitamin C in high doses may cause diarrhea and possibly reduce warfarin absorption. There are reports of two people who took up to 16 grams daily of vitamin C and had a reduction in prothrombin time. Lower doses of 5-10 grams daily can also reduce warfarin absorption. In many cases, this does not seem to be clinically significant. However, a case of warfarin resistance has been reported for a patient who took vitamin C 500 mg twice daily. Cessation of vitamin C supplementation resulted in a rapid increase in international normalized ratio (INR). Tell patients taking warfarin to avoid taking vitamin C in excessively high doses (greater than 10 grams daily). Lower doses may be safe, but the anticoagulation activity of warfarin should be monitored. Patients who are stabilized on warfarin while taking vitamin C should avoid adjusting vitamin C dosage to prevent the possibility of warfarin resistance.

Likelihood Possible Evidence D
Acetaminophen (Tylenol, Others)

High-dose vitamin C might slightly prolong the clearance of acetaminophen.
A small pharmacokinetic study in healthy volunteers shows that taking high-dose vitamin C (3 grams) 1.5 hours after taking acetaminophen 1 gram slightly increases the apparent half-life of acetaminophen from around 2.3 hours to 3.1 hours. Ascorbic acid competitively inhibits sulfate conjugation of acetaminophen. However, to compensate, elimination of acetaminophen glucuronide and unconjugated acetaminophen increases. This effect is not likely to be clinically significant.

Likelihood Probable Evidence B
Aspirin

Acidification of the urine by vitamin C might increase aspirin levels.
It has been suggested that acidification of the urine by vitamin C could increase reabsorption of salicylates by the renal tubules, and increase plasma salicylate levels. However, short-term use of up to 6 grams daily of vitamin C does not seem to affect urinary pH or salicylate excretion, suggesting this interaction is not clinically significant.

Likelihood Possible Evidence B
Choline Magnesium Trisalicylate (Trilisate)

Acidification of the urine by vitamin C might increase choline magnesium trisalicylate levels.
It has been suggested that acidification of the urine by vitamin C could increase reabsorption of salicylates by the renal tubules, and increase plasma salicylate levels. However, short-term use of up to 6 grams daily of vitamin C does not seem to affect urinary pH or salicylate excretion, suggesting this interaction probably is not clinically significant.

Likelihood Possible Evidence B
Niacin

Vitamin C might decrease the beneficial effects of niacin on high-density lipoprotein (HDL) cholesterol levels.
A combination of niacin and simvastatin (Zocor) effectively raises HDL cholesterol levels in patients with coronary disease and low HDL levels. Clinical research shows that taking a combination of antioxidants (vitamin C, vitamin E, beta-carotene, and selenium) along with niacin and simvastatin (Zocor) attenuates this rise in HDL, specifically the HDL-2 and apolipoprotein A1 fractions, by more than 50% in patients with coronary disease. It is not known whether this adverse effect is due to a single antioxidant such as vitamin C, or to the combination. It also is not known whether it will occur in other patient populations.

Likelihood Possible Evidence A
Salsalate (Disalcid)

Acidification of the urine by vitamin C might increase salsalate levels.
It has been suggested that acidification of the urine by vitamin C could increase reabsorption of salicylates by the renal tubules, and increase plasma salicylate levels. However, short-term use of up to 6 grams/day vitamin C does not seem to affect urinary pH or salicylate excretion, suggesting this interaction probably is not clinically significant.

Likelihood Possible Evidence B

Folic Acid7 drug types · 40 drugs

5-Fluorouracil

Theoretically, high doses of folic acid might increase the toxicity of 5-fluorouracil.
Increases in gastrointestinal side effects of 5-fluorouracil, such as stomatitis and diarrhea, have been described in two clinical studies when leucovorin, a form of folic acid, was administered with 5-fluorouracil.

Likelihood Possible Evidence D
Capecitabine (Xeloda)

Use of high-dose folic acid might contribute to capecitabine toxicity.
Clinical research suggests that higher serum folate levels are associated with an increased risk for moderate or severe toxicity during capecitabine-based treatment for colorectal cancer. Additionally, in one case report, taking folic acid 15 mg daily might have contributed to increased toxicity, including severe diarrhea, vomiting, edema, hand-foot syndrome, and eventually death, in a patient prescribed capecitabine.

Likelihood Possible Evidence D
Methotrexate (Trexall, Others)

Folic acid might reduce the efficacy of methotrexate as a cancer treatment when given concurrently.
Methotrexate exerts its cytotoxic effects by preventing conversion of folic acid to the active form needed by cells. There is some evidence that folic acid supplements reduce the efficacy of methotrexate in the treatment of acute lymphoblastic leukemia, and theoretically they could reduce its efficacy in the treatment of other cancers. Advise cancer patients to consult their oncologist before using folic acid supplements. In patients treated with long-term, low-dose methotrexate for rheumatoid arthritis (RA) or psoriasis, folic acid supplements can reduce the incidence of side effects, without reducing efficacy.

Likelihood Probable Evidence B
Phenobarbital (Luminal)

Folic acid might have antagonistic effects on phenobarbital and increase the risk for seizures.
Folic acid can have direct convulsant activity in some people, reversing the effects of phenobarbital and worsening seizure control. Monitor closely for increased seizure activity.

Likelihood Probable Evidence B
Phenytoin (Dilantin)

Folic acid might reduce serum levels of phenytoin in some patients.
Folic acid may be a cofactor in phenytoin metabolism. Folic acid, in doses of 1 mg daily or more, can reduce serum levels of phenytoin in some patients. Increases in seizure frequency have been reported. If folic acid supplements are added to established phenytoin therapy, monitor serum phenytoin levels closely. If phenytoin and folic acid are started at the same time and continued together, adverse changes in phenytoin pharmacokinetics are avoided. Note that phenytoin also reduces serum folate levels.

Likelihood Probable Evidence B
Primidone (Mysoline)

Folic acid might have antagonistic effects on primidone and increase the risk for seizures.
Folic acid can have direct convulsant activity in some people, reversing the effects of primidone and worsening seizure control. Monitor closely for increased seizure activity. Note that primidone also reduces serum folate levels.

Likelihood Probable Evidence B
Pyrimethamine (Daraprim)

Folic acid might antagonize the effects of pyrimethamine.
Folic acid can antagonize the antiparasitic effects of pyrimethamine against toxoplasmosis and Pneumocystis carinii pneumonia. Folic acid doesn't antagonize the effects of pyrimethamine in the treatment of malaria, because malarial parasites cannot use exogenous folic acid. Use folinic acid as an alternative to folic acid when indicated.

Likelihood Probable Evidence D

Vitamin B121 drug type · 20 drugs

Metformin (Glucophage)

Metformin, a common medication used to manage type 2 diabetes, has been associated with lower vitamin B12 levels in some individuals. Prolonged use of metformin can interfere with the absorption of B12 in the digestive system, potentially leading to a deficiency in this essential vitamin.

Likelihood Possible Evidence A
The maker

Brand information

Manufacturer and brand details for Plasmatic EP, from the product label.

EST Engineered Sports Technology

See all EST Engineered Sports Technology products
Name
Engineered Sports Technology, Inc.
City
Orlando
State
FL
ZipCode
32805
Pharmacist Counseling Corner

Plasmatic EP by EST Engineered Sports Technology: Common Questions

Does Plasmatic EP by EST Engineered Sports Technology interact with any medications?
Yes. Based on its ingredients, Plasmatic EP has a known interaction with 1,542 medications, including 131 rated major. Use the checker to see how it interacts with a specific drug.
How can one product interact with so many drugs?
Plasmatic EP contains 8 active ingredients, and an interaction can come from any of them. We check every ingredient, combine the results into one list per medication, and show which ingredient and mechanism is responsible.
Where does this information come from?
The product label data comes from the NIH Dietary Supplement Label Database (DSLD); the interaction data is built on the Natural Medicines database and reviewed by HelloPharmacist pharmacists.
Is this safe if I'm pregnant or breastfeeding?
Folic acid at standard prenatal doses is recommended during pregnancy to prevent birth defects. However, several ingredients lack enough safety data for pregnancy or breastfeeding — including beta-alanine, danshen, resveratrol, echinacea, and glycine. Vitamin C at high doses may carry risks in late pregnancy. Talk with your doctor before taking this product if you're pregnant or nursing, and never self-treat.
Will this help my athletic performance?
Beta-alanine is possibly effective for athletic and physical performance. Caffeine is well-established as effective for mental alertness and athletic performance. The other ingredients in this product either lack solid evidence for performance benefits or haven't been studied enough in humans to say.
What's the tingling I feel after taking it?
That's likely from beta-alanine, which commonly causes a harmless tingling and flushing sensation (paresthesia) in the skin, usually starting within 20 minutes of taking it and lasting about an hour. It's dose-dependent — the more you take, the more noticeable it is. The effect goes away on its own.
Can I take this every day long-term?
Caffeine and beta-alanine can be used daily by healthy adults. However, high-dose vitamin B6 over time can cause nerve damage, so you should not exceed 100 mg daily for prolonged periods. Several ingredients like echinacea and glycine don't have good long-term safety data. If you plan to use this regularly for months, check with your pharmacist.
What are the side effects I should watch for?
Most common are the harmless tingling from beta-alanine and stimulant effects from caffeine (jitteriness, anxiety, insomnia). At higher doses, vitamin B6 can cause nerve damage. Folic acid at very high doses can cause sleep problems and confusion. Echinacea may trigger allergic reactions if you're sensitive to ragweed. Stop and talk to your pharmacist if you experience unusual symptoms.
Does this contain any fillers?
Yes. Besides the 15 active ingredients, this powder contains several inactive ingredients: citric acid, malic acid, acesulfame K, artificial and natural fruit punch flavor, sucralose, and Red #40. These are excipients — binders, sweeteners, and flavoring agents that are typical in supplement powders.

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

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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.

Plasmatic EP label
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The Full Monographs Behind Plasmatic EP’s Ingredients

Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.

Sources

Sources & How We Checked

Plasmatic EP'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.

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 639 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.

Vitamin B6 32 references
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See these in context on the Vitamin B6 monograph →

Folic Acid 56 references
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See these in context on the Folic Acid monograph →

Vitamin B12 30 references
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  2. Hartman TJ, Woodson K, Stolzenberg-Solomon R, et al. Association of the B-vitamins pyridoxal 5'-phosphate (B6), B12, and folate with lung cancer risk in older men. Am J Epidemiol 2001;153:688-94.. DOI
  3. Jansen T, Romiti R, Kreuter A, Altmeyer P. Rosacea fulminans triggered by high-dose vitamins B6 and B12. J Eur Acad Dermatol Venereol 2001;15:484-5..
  4. Lange H, Suryapranata H, De Luca G, et al. Folate therapy and in-stent restenosis after coronary stenting. N Engl J Med 2004;350:2673-81. PubMed
  5. Collin, S. M., Metcalfe, C., Refsum, H., Lewis, S. J., Zuccolo, L., Smith, G. D., Chen, L., Harris, R., Davis, M., Marsden, G., Johnston, C., Lane, J. A., Ebbing, M., Bonaa, K. H., Nygard, O., Ueland, P. M., Grau, M. V., Baron, J. A., Donovan, J. L., Nea
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  9. Uhl, W., Nolting, A., Golor, G., Rost, K. L., and Kovar, A. Safety of hydroxocobalamin in healthy volunteers in a randomized, placebo-controlled study. Clin Toxicol (Phila) 2006;44 Suppl 1:17-28. PubMed
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  21. Li Q, Yang G, Xu H, Tang S, Lee WY. Effects of resveratrol supplementation on bone quality: a systematic review and meta-analysis of randomized controlled trials. BMC Complement Med Ther 2021;21(1):214. PubMed
  22. McCreary MR, Schnell PM, Rhoda DA. Randomized double-blind placebo-controlled proof-of-concept trial of resveratrol for outpatient treatment of mild coronavirus disease (COVID-19). Sci Rep 2022;12(1):10978. PubMed
  23. Abdelhaleem IA, Brakat AM, Adayel HM, Asla MM, Rizk MA, Aboalfetoh AY. The effects of resveratrol on glycemic control and cardiometabolic parameters in patients with T2DM: A systematic review and meta-analysis. Med Clin (Barc) 2022;158(12):576-585. PubMed
  24. Badaoui A. Allergic contact dermatitis to resveratrol and Scutellaria baicalensis root extract in a cosmetic product. Contact Dermatitis 2022.

See these in context on the Resveratrol monograph →

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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