PhosphaGrow SX-7 Ingredients & Drug Interactions
by MuscleTech
What is this page for?
First and foremost: checking PhosphaGrow SX-7 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
PhosphaGrow SX-7 is a dietary supplement by MuscleTech with 3 active ingredients. Its ingredients are commonly taken for low testosterone or low libido in men, male fertility support, athletic performance and muscle strength.Based on those ingredients, 451 medications have a known interaction with it, the most serious rated moderate. The ingredients most likely to interact are Long Jack root extract, Astragalus root powder. Use the checker below to test your specific medication, or read the full HelloPharmacist Interaction Report.
Check Your Meds Against PhosphaGrow SX-7 by MuscleTech
Ask about any prescription or over-the-counter medication and we check it for interactions with PhosphaGrow SX-7 by MuscleTech — and tell you which ingredient is responsible.
AI summaries are generated from our interaction database for education only — always confirm with your pharmacist. How we use AI
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HelloPharmacist Scorecard of PhosphaGrow SX-7 by MuscleTech
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
Low disclosure
PhosphaGrow SX-7 has three active ingredients. Long Jack root extract, also called Eurycoma longifolia, is a traditional plant used to support sexual desire.
Astragalus root powder is a traditional herb that some research suggests may support immune function. The product also contains a Phosphatidic Acid Complex (a fat-based compound) as part of its blend.
The softgel is filled with inactive ingredients including medium-chain triglyceride oil, gelatin, and glycerin to hold everything together.
Does it work?
Not established
Long Jack root extract is rated possibly effective for supporting sexual desire — meaning there's some evidence, but it's not conclusive. For athletic performance, the evidence suggests it's probably not effective.
For back pain, osteoporosis, and diabetes, we don't have enough reliable evidence in our data to rate how well it works. Astragalus root powder has insufficient reliable evidence for the conditions studied in our data, so we can't tell you whether it's effective for any specific use based on what we hold.
How safe is it?
Well-documented data
Long Jack is generally well tolerated over the short term in studies, but long-term safety and product quality are uncertain. Because some research suggests it may raise testosterone levels, there's a risk of testosterone-related side effects — acne, insulin resistance, and liver stress — especially if your levels go above normal.
Astragalus is generally well tolerated short-term in healthy adults, though quality human safety data is limited. Both ingredients carry safety concerns in pregnancy and breastfeeding: the data advises against Long Jack during pregnancy and lactation, and against Astragalus during both, so you should talk with your doctor or pharmacist before using this product if you're pregnant or nursing.
Meds to double-check
Moderate interaction found
Double-check with your doctor or pharmacist before taking this product if you're on propranolol (a heart and blood pressure medication) — Long Jack can lower its effectiveness. Also check if you take immunosuppressants, lithium, cyclophosphamide, diabetes drugs, or any medications processed by your liver through the CYP1A2, CYP2C19, or CYP2A6 pathways, since astragalus and Long Jack may interfere with how these work.
The bottom line
Scorecard at a glanceFormula with limited ingredient disclosure with no established evidence rating for its marketed use. Moderate medication interactions have been identified, and safety information is well characterized.
PhosphaGrow SX-7 may be of interest to someone seeking support for sexual desire, but it's not a fit for you if you take propranolol, immunosuppressants, lithium, cyclophosphamide, or diabetes medications — and anyone on those drugs should check with their doctor or pharmacist before starting it. Long-term safety isn't established, and pregnancy or breastfeeding are times to sit this one out.
If you're considering it, talk it over with your own doctor or pharmacist to see if it's right for your situation.
Educational only — not medical advice; always confirm with your pharmacist. Our editorial policy · How we use AI
Assessment coverage: 2 of 3 active ingredients matched to our full ingredient reviews (monographs). Based on the product label dated Aug 25, 2015.
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 PhosphaGrow SX-7, straight from the product label.
| Brand | MuscleTech |
|---|---|
| Barcode (UPC) | 631656606676 |
| Net contents | 140 Softgel(s) |
| Market status | On market |
| Date entered into DSLD | Aug 25, 2015 |
| DSLD ID | 48104 |
| Product type | Botanical With Nutrients |
| Supplement form | Softgel Capsule |
| 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 PhosphaGrow SX-7 by MuscleTech, sourced from the NIH Dietary Supplement Label Database.
Supplement Facts
| Ingredient | Amount | % DV |
|---|---|---|
| Long Jack root extract | 0 NP | -- |
| Phosphatidic Acid Complex | 1529 mg | -- |
| Astragalus root powder | 0 NP | -- |
| Mediator(R) PA (Phosphatidic Acid- enriched Soy Lecithin) | 0 NP | -- |
| Phosphatidic Acid | 750 mg | -- |
Other ingredients: Medium Chain Triglyceride Oil, Monoglycerides and Diglycerides, Silicon Dioxide, Gelatin, Glycerin, Caramel color, purified Water
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.
Formula
Contains the only clinically studied & fully dosed form of Phosphatidic Acid.
Contains soy ingredients.
Brand IP Statement(s)
Phosphagrow(TM) SX-7(TM) features the purest clinically tested form of Phosphatidic Acid (PA) available- Mediator(R) PA.
Subjects boosted mTOR signaling by more than 6 times In a University of Tampa study, pre-clinical research showed that the same phosphatidic acid found in PhosphaGrow(TM) SX-7(TM) increased mTOR signaling by over 6 times compared to baseline.
Muscletech (TM) Research & Development
(C)2015. Patent pending.
Mediator(R) PA is protected under patents pending by Chemi Nutra. Mediator(R) PA is a registered trademark of Chemi Nutra.
PhosphaGrow(TM) SX-7(TM) works through the same mechanism, enhancing mTOR to increase protein synthesis and activate anabolic activity.
But remember, only Mediator(R) PA is guaranteed for purity and quality through Nuclear Magnetic Resonance Testing. No other source can deliver the same results! Get PhosphaGrow(TM) SX-7(TM) today!
General Statements
During resistance training, your body naturally produces limited amounts of phosphatidic acid, which binds to mTOR, activating the primary signaling pathway for muscle building.
Subjects built significantly more muscle & strength. In a separate phase of the same study, Phosphatidic Acid was shown to double muscle gains in test subjects compared to a placebo. These test subjects gained 5.3 lbs. of lean muscle vs. 2.6 lbs. in the placebo group. In the same study, test subjects increased their strength on the leg press by 69% more than the placebo group (114.4 lbs. vs 71.4 lbs.) in just 8 weeks!
(chart) Less muscle gained (lbs.) PhosphaGrow(TM) Sx-7(TM) Gained 5.3 lbs. of lean muscle Placebo group Strength gain on leg press (lbs.) PhosphaGrow(TM) SX-7(TM) Gained 60% more strength Placebo group
Gain 5.3 lbs. of muscle Based on research at the University of Tampa
Subjects gained 5.3 lbs of lean muscle in 8 weeks Doubles muscle gains and increase strength by 60% Boosts mTOR signaling by more than 6 times
Results based on core ingredient testing. See back for study details.
Exclusive formula based on research at the University of Tampa
Made in the U.S.A. from international ingredients.
Research & development
FDA Statement of Identity
Dietary Supplement
Precautions
Contains soy ingredients.
Warning: For adult use only.
Do not use if pregnant or nursing.
Consult a medical doctor before use if you have a medical condition or before starting a diet or exercise program. Discontinue use two weeks prior to surgery.
Keep out of reach of children.
Do not use if packaging has been tampered with.
Suggested/Recommended/Usage/Directions
Directions: Take 1 serving (5 softgels) once daily. On workout days, take 30 minutes before training. Do not exceed 5 softgels in a 24-hour period. Read the entire label before use and follow directions provided.
Storage
Store in a cool, dry place (60(0)F to 80(0)F).
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.
Seals/Symbols
Made in the USA from International ingredients
General
11163US 0215
Is this label outdated? Report a formula or label change and our pharmacy team will review it.
PhosphaGrow SX-7 by MuscleTech 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 PhosphaGrow SX-7 by MuscleTech
These are the 3 active ingredients this product is made of. Select any to open its full monograph.
Serving size5 Softgel(s) Dosage formSoftgel Capsule Servings per container28 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.
Phosphatidic Acid Complex
Other (inactive) ingredients: Medium Chain Triglyceride Oil, Monoglycerides and Diglycerides, Silicon Dioxide, Gelatin, Glycerin, Caramel color, Purified Water. These complete the product’s ingredient list but are not active constituents.
PhosphaGrow SX-7 by MuscleTech Drug Interactions
HelloPharmacist Interaction Report
PhosphaGrow SX-7 by MuscleTech contains Long Jack root extract and Astragalus root powder, both of which interact with medications.
The most serious interaction is Long Jack's Moderate effect on propranolol (Inderal), a heart medication — it can lower propranolol levels and reduce how well it works to control blood pressure and heart rate.
Read the full breakdown — every affected drug type, severity by severity
Long Jack also has Minor interactions: it may theoretically increase levels of several types of enzyme-processed drugs (CYP1A2, CYP2C19, and CYP2A6 substrates), though this hasn't been proven in humans. It may also further boost testosterone levels, which could raise the risk of testosterone-related side effects like acne and liver stress if levels climb above normal.
Astragalus root powder carries Moderate interactions with immunosuppressants (drugs that weaken the immune system), lithium (a mood stabilizer), cyclophosphamide (a chemotherapy drug), and blood sugar medications — it may reduce how well immunosuppressants work, raise lithium levels, interfere with cyclophosphamide, and increase the risk of low blood sugar (hypoglycemia) when combined with diabetes drugs.
We could not check Phosphatidic Acid itself for interactions. Altogether, these interactions span 451 individual medications.
Use the search tool below to check your exact prescriptions before you start.
Check your own medications below · Editorial policy · How we use AI
Want to check YOUR meds against PhosphaGrow SX-7?
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 checkerIngredients driving the most interactions
Individual Drug Interactions
The ingredients in PhosphaGrow SX-7 interact with 451 drugs. Click any drug to see the details.
2 of the 3 ingredients in PhosphaGrow SX-7 interact with drugs. Each result below shows which ingredient is responsible. Long Jack root extract Astragalus root powder
6-mercaptopurinePurinethol
How 6-mercaptopurine interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + 6-mercaptopurine interactionAbrocitinibCibinqo
How Abrocitinib interacts with PhosphaGrow SX-7 — through 2 ingredients. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Abrocitinib interactionLong Jack Root ExtractCytochrome P450 2c19 (cyp2c19) Substrates Minor
Interaction Summary
Theoretically, Eurycoma longifolia might increase levels of CYP2C19 substrates.
Read the full Long Jack Root Extract + Abrocitinib interactionAcarboseGlucobay, Prandase, Precose
How Acarbose interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Acarbose interactionAcetohexamideDymelor
How Acetohexamide interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Acetohexamide interactionAdalimumabHumira
How Adalimumab interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab interactionAdalimumab-adazHyrimoz
How Adalimumab-adaz interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-adaz interactionAdalimumab-adbmCyltezo
How Adalimumab-adbm interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-adbm interactionAdalimumab-afzbAbrilada
How Adalimumab-afzb interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-afzb interactionAdalimumab-attoAmjevita
How Adalimumab-atto interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-atto interactionAdalimumab-bwwdHadlima
How Adalimumab-bwwd interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-bwwd interactionAdalimumab-fkjpHulio
How Adalimumab-fkjp interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Adalimumab-fkjp interactionAlbiglutideTanzeum
How Albiglutide interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Albiglutide interactionAlefaceptAmevive
How Alefacept interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Alefacept interactionAlemtuzumabCampath
How Alemtuzumab interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Alemtuzumab interactionAlogliptinNesina
How Alogliptin interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Alogliptin interactionAlogliptin, MetforminKazano
How Alogliptin, Metformin interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Alogliptin, Metformin interactionAlogliptin, PioglitazoneOseni
How Alogliptin, Pioglitazone interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Alogliptin, Pioglitazone interactionAnifrolumab-fniaSaphnelo
How Anifrolumab-fnia interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Anifrolumab-fnia interactionAntidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) InhibitorGlyxambi
How Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderAntidiabetes Drugs Moderate
Interaction Summary
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Read the full Astragalus Root Powder + Antidiabetes, Dipeptidyl Peptidase-4 (dpp-iv) Inhibitor interactionAntithymocyte GlobulinThymoglobulin
How Antithymocyte Globulin interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Antithymocyte Globulin interactionAtezolizumabTecentriq
How Atezolizumab interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Atezolizumab interactionAzamuneImmunoprin
How Azamune interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Azamune interactionAzathioprineAzamune, Imuran
How Azathioprine interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Azathioprine interactionBasiliximabSimulect
How Basiliximab interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Basiliximab interactionBeclometasone DipropionateBecotide
How Beclometasone Dipropionate interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Beclometasone Dipropionate interactionBeclomethasoneBeclovent, Vanceril
How Beclomethasone interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Beclomethasone interactionBeclomethasone DipropionateQNASL, Qvar
How Beclomethasone Dipropionate interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Beclomethasone Dipropionate interactionBetamethasoneCelestone, Diprolene AF, Diprosone
How Betamethasone interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Betamethasone interactionBetamethasone DipropionateSernivo
How Betamethasone Dipropionate interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Betamethasone Dipropionate interactionBetamethasone Dipropionate, CalcipotrieneEnstilar, Wynzora
How Betamethasone Dipropionate, Calcipotriene interacts with PhosphaGrow SX-7 — through 1 ingredient. Tap an ingredient for the detail:
Astragalus Root PowderImmunosuppressants Moderate
Interaction Summary
Theoretically, astragalus might interfere with immunosuppressive therapy.
Read the full Astragalus Root Powder + Betamethasone Dipropionate, Calcipotriene interactionEach ingredient & the kinds of drugs it affects
For each ingredient in PhosphaGrow SX-7 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.
Long Jack root extract
Propranolol (Inderal)
Eurycoma longifolia can reduce the levels and clinical effects of propranolol.
A small clinical study in healthy persons shows that taking a single dose of a water-based Eurycoma longifolia extract 200 mg, in combination with a single dose of propranolol 80 mg, reduces the propranolol area under the curve (AUC) by 29%, reduces the peak concentration by 42%, and increases time to peak concentration by 86% when compared with control. Since the elimination half-life of propranolol did not change, it seems that Eurycoma longifolia alters the kinetics of propranolol by decreasing its absorption in the gut, and not by altering its metabolism. It is not known if separating administration will prevent this interaction.
Cytochrome P450 1A2 (Cyp1A2) Substrates
Theoretically, Eurycoma longifolia might increase levels CYP1A2 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP1A2 enzymes. This effect has not been reported in humans.
Cytochrome P450 2A6 (Cyp2A6) Substrates
Theoretically, Eurycoma longifolia might increase levels of CYP2A6 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2A6 enzymes. This effect has not been reported in humans.
Cytochrome P450 2C19 (Cyp2C19) Substrates
Theoretically, Eurycoma longifolia might increase levels of CYP2C19 substrates.
In vitro research suggests that methanolic Eurycoma longifolia root extract weakly inhibits CYP2C19 enzymes. This effect has not been reported in humans.
Testosterone
Theoretically, Eurycoma longifolia may further increase levels of testosterone.
A clinical study in aging males with testosterone levels below 300 ng/dL shows that taking a specific water extract of Eurycoma longifolia roots (Physta; Biotropics Malaysia) 100-200 mg daily with breakfast for 12 weeks increases total testosterone levels by 8% to 11% when compared with placebo. It is unclear whether this increase would occur in individuals with normal testosterone levels.
Astragalus root powder
Antidiabetes Drugs
Theoretically, taking astragalus with antidiabetes drugs might increase the risk of hypoglycemia.
Clinical research in humans shows that astragalus might have hypoglycemic effects. Theoretically, taking astragalus, especially in combination with other hypoglycemic agents, might increase the risk of hypoglycemia.
Cyclophosphamide
Theoretically, astragalus might interfere with cyclophosphamide therapy.
Evidence regarding the effect of astragalus on immunosuppression caused by cyclophosphamide is conflicting. Some animal research suggests that astragalus reverses cyclophosphamide-induced immunosuppression. However, other animal research shows no effect.
Immunosuppressants
Theoretically, astragalus might interfere with immunosuppressive therapy.
Astragalus seems to stimulate immune function. Theoretically, taking astragalus might decrease the effects of immunosuppressive therapy.
Lithium
Theoretically, astragalus might increase levels and adverse effects of lithium.
Animal research suggests that astragalus has diuretic properties. Theoretically, due to this diuretic effect, astragalus might reduce excretion and increase levels of lithium.
Brand information
Manufacturer and brand details for PhosphaGrow SX-7, from the product label.
MuscleTech
See all MuscleTech products- Name
- Iovate Health Sciences U.S.A. Inc.
- Street Address
- 1105 Market Street, Suite 1330
- City
- Wilmington
- State
- DE
- ZipCode
- 19801
PhosphaGrow SX-7 by MuscleTech: Common Questions
Does PhosphaGrow SX-7 by MuscleTech interact with any medications?
How can one product interact with so many drugs?
Where does this information come from?
Does this product help with athletic performance?
Can I take this if I'm pregnant or breastfeeding?
What are the side effects I should watch for?
Is it safe to use long-term?
What does Astragalus do?
Written and reviewed by the HelloPharmacist editorial staff. Our editorial policy
Not sure if PhosphaGrow SX-7 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 PhosphaGrow SX-7’s Ingredients
Every ingredient we hold a full HelloPharmacist monograph for — uses, evidence, safety, and the complete interaction list.
Eurycoma Longifolia
Interacts with 248 drugsEurycoma longifolia (tongkat ali) is a Southeast Asian herb most popular for supporting testosterone, libido, and male fertility, with some small human studies suggesting possible benefits....
Read the full Eurycoma Longifolia monograph → Herb & supplement monographAstragalus
Interacts with 208 drugsAstragalus is a root used for centuries in traditional Chinese medicine, mainly to support the immune system and help the body cope with stress. While early studies are interesting, strong h...
Read the full Astragalus monograph → Herb & supplement monographLecithin
Lecithin is a natural fatty substance found in foods and made by the body that is widely used as a supplement and food emulsifier. Evidence supporting most of its health claims is limited, t...
Read the full Lecithin monograph →Sources & How We Checked
PhosphaGrow SX-7'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 26 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.
Eurycoma Longifolia 4 references
- Salman SA, Amrah S, Wahab MS, et al. Modification of propranolol's bioavailability by Eurycoma longifolia water-based extract. J Clin Pharm Ther 2010;35:691-6. PubMed
- Tambi MI, Imran MK, Henkel RR. Standardised water-soluble extract of Eurycoma longifolia, Tongkat ali, as testosterone booster for managing men with late-onset hypogonadism? Andrologia 2011 Jun 15. doi: 10.1111/j.1439-0272.2011.01168.x. [Epub ahead of pri PubMed
- Han YM, Kim IS, Rehman SU, Choe K, Yoo HH. In vitro evaluation of the effects of Eurycoma longifolia extract on CYP-mediated drug metabolism. Evid Based Complement Alternat Med 2015;2015:631329.
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