--- title: "Albuterol (salbutamol): Dosing & Vendor Prices" url: https://www.bodyhackguide.co/compound/albuterol description: "Albuterol (salbutamol): dosing protocols, mechanism & side effects. Compare 1 current vendor prices." lang: en --- Skip to content Compare notes on r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Compare notes with other researchers. Join r/BodyHackGuide (https://reddit.com/r/bodyhackguide) Image: Albuterol (salbutamol) molecular structure (https://www.bodyhackguide.co/assets/peptide-structure-placeholder-DUmZBF_j.png) # Albuterol (salbutamol) Pharmaceutical (https://www.bodyhackguide.co/wiki#cat-pharmaceutical)FDA Approved Also known as: Salbutamol, Ventolin, Proventil, Albuterol sulfate, Salbutamol sulfate, Levalbuterol Albuterol, called salbutamol outside the United States, is a beta-2 adrenergic agonist and a standard asthma medicine worldwide. It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. Image: Disguised Alpha logo (https://disguisedalpha.com/wp-content/themes/assets/logos/disguised-logo-2x.png) Lowest price per mg $0.433/mg $64.99 for 150mg at Disguised Alpha Buy at Disguised Alpha: https://disguisedalpha.com/product/albuterol/?coupon=reddit Half-life: Mean terminal half-life 3.8 hours after intravenous administr… Route: Inhalation, Oral, Intravenous (clinical studies) MW: 239.31 g/mol CAS: 18559-94-9 Last reviewed: Oct 2, 2026 ## Overview ### At A Glance Mechanism Albuterol is a selective beta-2 adrenergic receptor agonist. Beta-2 receptors are G protein coupled receptors that raise intracellular cyclic AMP through adenylyl cyclase; in airway smooth muscle this causes relaxation and bronchodilation, the licensed effect. The same receptors … Half-Life Mean terminal half-life 3.8 hours after intravenous administration in 16 healthy adult men, with absolute oral bioavailability of 44 percent and plasma peaks one to three hours after oral administration (PMID: 3653233) Routes Inhalation Oral Intravenous (clinical studies) Potential Benefits Increased type IIa muscle fiber cross-sectional area 35 percent versus 21 percent on placebo and improved sprint mean power output over eleven weeks of resistance training in young men (PMID: 33357007) Increased lean mass by 1.8 kg more than placebo over eleven weeks of resistance training in 30 trained men (PMID: 42274909) Increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301) Improved FEV1 by 6.4 percent after inhalation in trained cyclists, the licensed bronchodilator effect (PMID: 25856682) Activated human brown adipose tissue through beta-2 receptor stimulation (PMID: 36812890) ### Overview Albuterol, called salbutamol outside the United States, is a beta-2 adrenergic agonist and a standard asthma medicine worldwide. It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. It is an ordinary prescription drug, not a research chemical, and a research liquid is simply an unapproved presentation of it. It appears in fitness contexts because beta-2 receptors are on skeletal muscle as well as airway smooth muscle, and beta-2 agonists have a documented anabolic and lipolytic effect at doses well above what is needed to open airways. That effect is real, it has been measured properly, and the measurements come with costs attached. The cleanest study is an eleven-week randomized trial in which 26 young men took oral salbutamol or placebo during full-body resistance training. Sprint mean power output rose more with salbutamol, cross-sectional area of type IIa muscle fibers increased 35 percent versus 21 percent on placebo, and the muscle shifted toward the IIa isoform. Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. Pharmacologists have argued that the single untimed urine sample cannot reliably distinguish permitted inhaled use from prohibited oral use in either direction (PMID: 29722428). ### Potential Research Fields Beta-2 adrenergic pharmacology Respiratory medicine Skeletal muscle hypertrophy Sports drug testing ## Chemical Information IUPAC Name Not yet available CAS Number 18559-94-9 Molecular Formula C13H21NO3 Molecular Mass 239.31 g/mol Image: Albuterol (salbutamol) molecular structure (https://pubchem.ncbi.nlm.nih.gov/rest/pug/compound/cid/2083/PNG) View on PubChem: https://pubchem.ncbi.nlm.nih.gov/compound/2083 ## Dosing & Protocols ### Unlock the Dosing tab Enter your email to keep reading. It is free, and it opens these tabs on every compound page in this browser. - Route You also get the free peptide cheat sheet by email. Unsubscribe anytime. Have an account? Sign in (https://www.bodyhackguide.co/auth) ## Research ### Unlock the research summary - A summary of the key research - Safety and side effects - A link to the PubMed results ## Interactions ### Contraindications Label-based and evidence-based: the approved product labeling governs licensed use and should be followed. Beta-2 agonism is a poor fit for anyone with tachyarrhythmia, uncontrolled hypertension or hypokalemia, and it interacts with non-selective beta blockers, which oppose it (PMID: 27771799). High-dose systemic use produced cardiac wall thickening and impaired muscle oxidative capacity in a controlled trial, so people with existing cardiac hypertrophy or cardiomyopathy have a specific reason to avoid it (PMID: 42274909). Oral use is prohibited at all times in tested sport under WADA section S3. Research Disclaimer This interaction data is compiled from published research and community reports. It may not be exhaustive. Always consult a healthcare professional before combining compounds. Best Price $59.99 up to $64.99 Best $/mg $0.4333 Vendors 1 Listings 2 liquid Form Sort | Vendor | Product | Form | Qty | Price | $/mg | Coupon | | | --- | --- | --- | --- | --- | --- | --- | --- | | Image: Disguised Alpha logo (https://disguisedalpha.com/wp-content/themes/assets/logos/disguised-logo-2x.png) Disguised Alpha (https://www.bodyhackguide.co/vendors/disguised-alpha) 50: https://www.bodyhackguide.co/vendor-trust-scorecard 🇺🇸 US 🇪🇺 EU 🇬🇧 UK | ShredX blend (L-carnitine / MIC / ATP / albuterol / vitamin B12) | liquid | 1 vial ● In Stock | $59.99 BEST | — | — | Buy: https://disguisedalpha.com/product/shredx-blend/?coupon=reddit | | Image: Disguised Alpha logo (https://disguisedalpha.com/wp-content/themes/assets/logos/disguised-logo-2x.png) Disguised Alpha (https://www.bodyhackguide.co/vendors/disguised-alpha) 50: https://www.bodyhackguide.co/vendor-trust-scorecard 🇺🇸 US 🇪🇺 EU 🇬🇧 UK | Albuterol 5 mg/mL, 30 mL | liquid | 30 mL dropper (5 mg/mL) ● In Stock | $64.99 VALUE | $0.433 | — | Buy: https://disguisedalpha.com/product/albuterol/?coupon=reddit | ### Sign in to leave a review Reviews on BodyHackGuide are tied to verified user accounts and moderated before publishing. Sign in (free, no spam) to share your experience with Albuterol (salbutamol). Current low $59.99 current listings 7-day low — not enough history yet 30-day low — not enough history yet 30-day change — not enough history yet Tracking since Sep 7, 2026 · 2 data points ### Vendors Selling Albuterol (salbutamol) #### Disguised Alpha 2 listings · from $59.99 https://www.bodyhackguide.co/vendors/disguised-alpha How we score these vendors Every supplier above is graded 0 to 100 on COA verification, payment transparency, shipping, reviews, and active listings. Methodology published, no pay-to-rank. View Scorecard (https://www.bodyhackguide.co/vendors/scorecard) ### Related Compounds View All (https://www.bodyhackguide.co/wiki) ### Clascoterone Pharmaceutical Preclinical Clascoterone (brand name Winlevi; development codes CB-03-01 and, for the alopecia formulation, Breezula) is a first-in-class topical androgen receptor (AR) antagonist approved by the U.S. 1,188 PubMed View Profile https://www.bodyhackguide.co/compound/clascoterone ### Finasteride Pharmaceutical Preclinical Finasteride is an orally-active selective type II 5α-reductase inhibitor that blocks the conversion of testosterone to dihydrotestosterone (DHT), the primary androgenic driver of both benign prostatic hyperplasia (BPH) and androgenetic alopecia (male-pattern hair loss). Preclinical View Profile https://www.bodyhackguide.co/compound/finasteride ### Meldonium Pharmaceutical Approved (Latvia) Meldonium, sold as Mildronate, was developed at the Latvian Institute of Organic Synthesis (PMID: 12242052) and is a licensed cardiovascular medicine in Latvia and a number of eastern European and post-Soviet countries. t½ Not a single simple value: in 32 healthy athlete volunteers taking oral meldonium for three weeks, plasma took several days to reach steady state and urinary elimination continued for several months after the last dose, because tissue clearance depends on slow diffusion rather than transport (PMID: 30328291) Preclinical View Profile https://www.bodyhackguide.co/compound/meldonium ### Mirabegron Pharmaceutical FDA Approved Mirabegron is an approved prescription drug, not a research chemical. t½ Terminal half-life about 32 hours in one phase 1 multiple-dose study and about 60 hours in a second, with plasma peaks at three to five hours and steady state within seven days in healthy young and elderly adults (PMID: 23063375) Preclinical View Profile https://www.bodyhackguide.co/compound/mirabegron ### Tropisetron Pharmaceutical Approved (Japan) Tropisetron, coded ICS 205-930 during development and marketed as Navoban, is a serotonin 5-HT3 receptor antagonist approved as an antiemetic in Japan and in many other countries outside the United States, with ATC code A04AA03 (KEGG DRUG D02041, D02130). t½ About 5.7 h after a single 5 mg oral capsule and 5.6 h after 2 mg intravenously in 18 healthy volunteers; oral bioavailability averaged 0.60 with a range of 0.27 to 0.99 and was inversely related to CYP2D6 activity (PMID: 11736884) Preclinical View Profile https://www.bodyhackguide.co/compound/tropisetron View Full Dosage Guide → Protocols, calculator & safety for Albuterol (salbutamol) https://www.bodyhackguide.co/guides/dosage/albuterol ### Lowest Price per mg Disguised Alpha $64.99($0.433/mg) 1 vendor · 2 listings ### Research Score 30 0 PubMed results ### Quality Indicators Data Completeness 63% Description Mechanism of Action Chemical Data Dosing Protocols Safety Profile PubMed Results Interactions Vendor Listings ### Quick Facts Half-Life Molecular Weight 239.31 g/mol Administration Inhalation, Oral, Intravenous (clinical studies) CAS Number 18559-94-9 Trial Phase FDA Approved 0 Research Disclaimer This information is for educational and research purposes only. Not intended as medical advice. Consult a healthcare professional before use. ## Frequently Asked Questions What is Albuterol (salbutamol) used for in research? Albuterol, called salbutamol outside the United States, is a beta-2 adrenergic agonist and a standard asthma medicine worldwide. It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. It is an ordinary prescription drug, not a research chemical, and a research liquid is simply an unapproved presentation of it. It appears in fitness contexts because beta-2 receptors are on skeletal muscle as well as airway smooth muscle, and beta-2 agonists have a documented anabolic and lipolytic effect at doses well above what is needed to open airways. That effect is real, it has been measured properly, and the measurements come with costs attached. The cleanest study is an eleven-week randomized trial in which 26 young men took oral salbutamol or placebo during full-body resistance training. Sprint mean power output rose more with salbutamol, cross-sectional area of type IIa muscle fibers increased 35 percent versus 21 percent on placebo, and the muscle shifted toward the IIa isoform. Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. Pharmacologists have argued that the single untimed urine sample cannot reliably distinguish permitted inhaled use from prohibited oral use in either direction (PMID: 29722428). What forms does Albuterol (salbutamol) come in? Albuterol (salbutamol) is available in liquid form. How much does Albuterol (salbutamol) cost? Prices start at $59.99 across 1 vendor. How do I compare Albuterol (salbutamol) vendors? Compare prices, payment methods, shipping, and COA scores across 1 vendor. ## Research Tools ### Peptide Calculator Reconstitution & syringe units https://www.bodyhackguide.co/tools/reconstitution ### Reconstitution Guide How to mix, step by step https://www.bodyhackguide.co/guides/how-to-reconstitute-peptides ### Nasal Spray Calc mL per actuation https://www.bodyhackguide.co/tools/intranasal ### Half-Life Visualizer Decay curves https://www.bodyhackguide.co/tools/halflife ## Related Compounds ### Clascoterone Pharmaceutical Preclinical ### Finasteride Pharmaceutical Preclinical ### Meldonium Pharmaceutical Approved (Latvia) ### Mirabegron Pharmaceutical FDA Approved ### Tropisetron Pharmaceutical Approved (Japan) Free 2026 Peptide Cheat Sheet (PDF) 38 compounds and blends: vial sizes, BAC water volumes, dosing ranges and bloodwork markers. Download Free (https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download) ### Need bloodwork before starting? 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Image: BodyHackGuide (https://www.bodyhackguide.co/assets/bodyhackguide-logo-DOzZNUyh.webp) ### BodyHackGuide Your biohacking research hub: compound pricing, brain health protocols, dosing tools, and vendor reviews. support@bodyhackguide.co Join our Discord: https://discord.gg/Mhq5UdRYBA r/BodyHackGuide on Reddit: https://reddit.com/r/BodyHackGuide #### Explore - Compare prices: https://www.bodyhackguide.co/compare - Vendors: https://www.bodyhackguide.co/vendors - Deals: https://www.bodyhackguide.co/deals - Coupons: https://www.bodyhackguide.co/coupons - Nootropics: https://www.bodyhackguide.co/nootropics - Brain health: https://www.bodyhackguide.co/brain-health - Blog: https://www.bodyhackguide.co/blog - Guides: https://www.bodyhackguide.co/guides #### Tools - Reconstitution: https://www.bodyhackguide.co/tools/reconstitution - Half-life visualizer: https://www.bodyhackguide.co/tools/halflife - COA reader: https://www.bodyhackguide.co/tools/coa - Cost calculator: https://www.bodyhackguide.co/tools/cost-calculator - Stack builder: https://www.bodyhackguide.co/stack-builder - All tools: https://www.bodyhackguide.co/tools #### Trust & vendors - Vendor directory: https://www.bodyhackguide.co/vendors - Trust scorecard: https://www.bodyhackguide.co/vendors/scorecard - Vendor trust badge: https://www.bodyhackguide.co/vendors/get-vetted - Scoring methodology: https://www.bodyhackguide.co/vendors/methodology - Peptide cheat sheet: https://www.bodyhackguide.co/guides/peptide-cheat-sheet-download #### Company - About: https://www.bodyhackguide.co/about - Affiliate disclosure: https://www.bodyhackguide.co/affiliate-disclosure - Editorial standards: https://www.bodyhackguide.co/editorial-standards - Creators: https://www.bodyhackguide.co/creators - Coaches: https://www.bodyhackguide.co/coaches - 1-on-1 coaching: https://www.bodyhackguide.co/coaching - Privacy: https://www.bodyhackguide.co/privacy - Terms: https://www.bodyhackguide.co/terms - Full site directory: https://www.bodyhackguide.co/site-directory **Affiliate Disclosure:** We rank every vendor on the same public, reproducible methodology (https://www.bodyhackguide.co/vendors/methodology), and we earn a commission from purchases made through some of our links at no extra cost to you. 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All rights reserved. · Terms (https://www.bodyhackguide.co/terms) · Privacy (https://www.bodyhackguide.co/privacy) ## Structured data ```json [ { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.bodyhackguide.co/" }, { "@type": "ListItem", "position": 2, "name": "Compounds", "item": "https://www.bodyhackguide.co/compare" }, { "@type": "ListItem", "position": 3, "name": "Albuterol (salbutamol)" } ] }, { "@context": "https://schema.org", "@type": "Product", "name": "Albuterol (salbutamol)", "description": "Albuterol, called salbutamol outside the United States, is a beta-2 adrenergic agonist and a standard asthma medicine worldwide. It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. It is an ordinary prescription drug, not a research chemical, and a research liquid is simply an unapproved presentation of it. It appears in fitness contexts because beta-2 receptors are on skeletal muscle as well as airway smooth muscle, and beta-2 agonists have a documented anabolic and lipolytic effect at doses well above what is needed to open airways. That effect is real, it has been measured properly, and the measurements come with costs attached. The cleanest study is an eleven-week randomized trial in which 26 young men took oral salbutamol or placebo during full-body resistance training. Sprint mean power output rose more with salbutamol, cross-sectional area of type IIa muscle fibers increased 35 percent versus 21 percent on placebo, and the muscle shifted toward the IIa isoform. Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. 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Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. 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It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. It is an ordinary prescription drug, not a research chemical, and a research liquid is simply an unapproved presentation of it. It appears in fitness contexts because beta-2 receptors are on skeletal muscle as well as airway smooth muscle, and beta-2 agonists have a documented anabolic and lipolytic effect at doses well above what is needed to open airways. That effect is real, it has been measured properly, and the measurements come with costs attached. The cleanest study is an eleven-week randomized trial in which 26 young men took oral salbutamol or placebo during full-body resistance training. Sprint mean power output rose more with salbutamol, cross-sectional area of type IIa muscle fibers increased 35 percent versus 21 percent on placebo, and the muscle shifted toward the IIa isoform. Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. Pharmacologists have argued that the single untimed urine sample cannot reliably distinguish permitted inhaled use from prohibited oral use in either direction (PMID: 29722428).", "activeIngredient": "Albuterol (salbutamol)", "administrationRoute": "Inhalation, Oral, Intravenous (clinical studies)", "mechanismOfAction": "Albuterol is a selective beta-2 adrenergic receptor agonist. Beta-2 receptors are G protein coupled receptors that raise intracellular cyclic AMP through adenylyl cyclase; in airway smooth muscle this causes relaxation and bronchodilation, the licensed effect. The same receptors on skeletal muscle mediate the effects relevant to physique and performance use: increased muscle protein turnover after resistance exercise in young men (PMID: 29968301), a shift in myosin heavy chain isoform distribution from MHCI and MHCIIx toward MHCIIa with greater hypertrophy of MHCIIa fibers (PMID: 33357007), and increased lipolysis. Beta-2 stimulation also drives potassium into cells, lowering serum potassium during and after intense exercise (PMID: 27771799), and activates human brown adipose tissue (PMID: 36812890). Cardiovascular effects follow from partial beta-1 cross-reactivity and reflex responses.", "dosageForm": "liquid", "legalStatus": "Not approved for human use (research chemical)", "warning": "For research purposes only. Not for human consumption." } }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is Albuterol (salbutamol) used for in research?", "acceptedAnswer": { "@type": "Answer", "text": "Albuterol, called salbutamol outside the United States, is a beta-2 adrenergic agonist and a standard asthma medicine worldwide. It was approved by the FDA in 1981 and has been the standard rescue bronchodilator for asthma ever since, sold as inhalers, nebulizer solutions, tablets and syrup. It is an ordinary prescription drug, not a research chemical, and a research liquid is simply an unapproved presentation of it. It appears in fitness contexts because beta-2 receptors are on skeletal muscle as well as airway smooth muscle, and beta-2 agonists have a documented anabolic and lipolytic effect at doses well above what is needed to open airways. That effect is real, it has been measured properly, and the measurements come with costs attached. The cleanest study is an eleven-week randomized trial in which 26 young men took oral salbutamol or placebo during full-body resistance training. Sprint mean power output rose more with salbutamol, cross-sectional area of type IIa muscle fibers increased 35 percent versus 21 percent on placebo, and the muscle shifted toward the IIa isoform. Maximal strength, however, increased the same amount in both groups (PMID: 33357007). A companion study showed increased muscle protein turnover rates after resistance exercise in young men (PMID: 29968301). A 2026 randomized controlled trial in 30 trained men ran the same design with cardiac imaging. Lean mass increased 1.8 kg more than placebo. But while cardiac magnetic resonance found no between-group difference in cardiac structure or function, echocardiography showed increased posterior, septal and relative wall thickness on the drug, time to exhaustion improved 7 percent on placebo and not at all on salbutamol, and muscle capillary density along with citrate synthase and 3-hydroxyacyl-CoA dehydrogenase activity fell on salbutamol (PMID: 42274909). The authors described these trade-offs as support for restricting supratherapeutic salbutamol in sport. For endurance there is no benefit to take. High-dose inhaled salbutamol improved lung function measured as FEV1 but did not improve 10 km cycling time trial performance in trained cyclists, whether or not they had exercise-induced bronchoconstriction, while heart rate, respiratory rate, minute ventilation and perceived leg discomfort all increased (PMID: 25856682). WADA places beta-2 agonists in section S3. Inhaled salbutamol is permitted within the limits WADA specifies, all other routes including tablets and syrup are prohibited at all times, and a urine concentration above the listed threshold is treated as an adverse analytical finding unless the athlete demonstrates otherwise through a controlled pharmacokinetic study. Pharmacologists have argued that the single untimed urine sample cannot reliably distinguish permitted inhaled use from prohibited oral use in either direction (PMID: 29722428)." } }, { "@type": "Question", "name": "What forms does Albuterol (salbutamol) come in?", "acceptedAnswer": { "@type": "Answer", "text": "Albuterol (salbutamol) is available in liquid form." } }, { "@type": "Question", "name": "How much does Albuterol (salbutamol) cost?", "acceptedAnswer": { "@type": "Answer", "text": "Prices start at $59.99 across 1 vendor." } }, { "@type": "Question", "name": "How do I compare Albuterol (salbutamol) vendors?", "acceptedAnswer": { "@type": "Answer", "text": "Compare prices, payment methods, shipping, and COA scores across 1 vendor." } } ] }, { "@context": "https://schema.org", "@type": "Organization", "@id": "https://www.bodyhackguide.co#organization", "name": "BodyHackGuide", "alternateName": "BHG", "url": "https://www.bodyhackguide.co", "logo": { "@type": "ImageObject", "url": "https://www.bodyhackguide.co/logo.png", "width": 512, "height": 512 }, "description": "Evidence-based research reference for peptides and nootropics. 124+ compound profiles, interactive dosing calculators, vendor price comparisons, and trust-scored vendor reviews scored on a public, reproducible methodology applied to every vendor. We earn a commission on purchases through some of our links.", "foundingDate": "2024", "founder": { "@id": "https://www.bodyhackguide.co/about#person" }, "sameAs": [ "https://reddit.com/r/BodyHackGuide", "https://reddit.com/r/BrainHackGuide", "https://reddit.com/r/Biohackingher", "https://discord.gg/Mhq5UdRYBA" ], "knowsAbout": [ "Peptide research", "Nootropic research", "Biohacking", "Compound dosing", "Vendor transparency" ], "publishingPrinciples": "https://www.bodyhackguide.co/editorial-standards", "ethicsPolicy": "https://www.bodyhackguide.co/editorial-standards", "diversityPolicy": "https://www.bodyhackguide.co/editorial-standards" } ] ```