MCAS (Mast Cell Activation Syndrome)
A condition where mast cells abnormally activate, causing multi-system symptoms including flushing, hives, and GI issues.
About MCAS
Mast Cell Activation Syndrome (MCAS) is a condition where mast cells abnormally activate and release excessive amounts of chemical mediators, causing multi-system symptoms including flushing, hives, GI distress, brain fog, and anaphylaxis. Compounded medications are often essential for MCAS patients because commercial products frequently contain dyes, fillers, and preservatives that trigger mast cell reactions.
Medications for This Condition
These compounded medications are commonly prescribed for mcas. Click any medication to compare prices from licensed U.S. pharmacies.
Ketotifen
Compounded Ketotifen prices vary by 30-50% between pharmacies. Compare quotes for free — no obligation, no phone calls.
Compare prices →Cromolyn Sodium
Compounded oral cromolyn sodium is a frontline mast cell stabilizer for MCAS and mastocytosis — preventing mast cell deg...
Compare prices →Quercetin
Quercetin is a plant-derived flavonoid with mast cell stabilizing activity, commonly layered into MCAS and CIRS protocol...
Compare prices →Famotidine
Famotidine is an H2 histamine blocker commonly used for acid reflux, peptic ulcers, and as part of mast cell activation ...
Compare prices →Cimetidine
Cimetidine is an H2 histamine blocker with additional immune-modulating properties that make it a distinct option within...
Compare prices →Nizatidine
Nizatidine is an H2 histamine blocker used as an alternative to famotidine and cimetidine for GERD, peptic ulcers, and M...
Compare prices →Cetirizine
Cetirizine is a second-generation H1 antihistamine used for allergies, chronic hives, and mast cell activation syndrome ...
Compare prices →Levocetirizine
Levocetirizine is the active enantiomer of cetirizine — a second-generation H1 antihistamine frequently layered into MCA...
Compare prices →Loratadine
Loratadine is a second-generation H1 antihistamine used for allergic rhinitis, chronic urticaria, and mast cell activati...
Compare prices →Desloratadine
Desloratadine is the active metabolite of loratadine — a second-generation H1 antihistamine with slightly higher potency...
Compare prices →Fexofenadine
Fexofenadine is a non-sedating second-generation H1 antihistamine used for allergic rhinitis, chronic urticaria, and MCA...
Compare prices →Hydroxyzine
Hydroxyzine is a first-generation H1 antihistamine prescribed for anxiety, allergies, and pruritus. Compounded dye-free ...
Compare prices →Diphenhydramine
Diphenhydramine (Benadryl) is a first-generation H1 antihistamine available in compounded formulations including dye-fre...
Compare prices →Chlorpheniramine
Chlorpheniramine is a first-generation H1 antihistamine used for allergies, cold symptoms, and pediatric dermatologic re...
Compare prices →Doxepin
Doxepin is a tricyclic with exceptionally potent H1 and H2 blockade — on a per-mg basis, roughly 1,000x more antihistami...
Compare prices →Azelastine
Azelastine is a second-generation H1 antihistamine primarily used as a nasal spray and eye drops for allergic rhinitis a...
Compare prices →Olopatadine
Olopatadine is a dual-action H1 antihistamine and mast cell stabilizer available as ophthalmic drops and nasal sprays fo...
Compare prices →Cyproheptadine
Cyproheptadine is a first-generation H1 antihistamine with additional antiserotonergic properties. It is commonly compou...
Compare prices →Budesonide Oral
Budesonide is a locally-acting corticosteroid with targeted GI anti-inflammatory effects and minimal systemic absorption...
Compare prices →NAC (N-Acetyl Cysteine) Injectable
N-Acetyl Cysteine (NAC) is the precursor to glutathione—the body's master antioxidant—and is FDA-approved IV for acetami...
Compare prices →Vitamin C (Ascorbic Acid Injectable)
Compounded ascorbic acid, commonly referred to as vitamin C, is prepared by sterile compounding pharmacies for prescribe...
Compare prices →Glutathione (Injectable)
Glutathione is a tripeptide antioxidant produced naturally in the body. Compounding pharmacies prepare injectable glutat...
Compare prices →Low-dose naltrexone (LDN)
Low-dose naltrexone (LDN) refers to naltrexone prescribed at much lower strengths than standard commercially manufacture...
Compare prices →Omeprazole
Omeprazole is a proton pump inhibitor (PPI) widely used for GERD, peptic ulcers, and acid hypersecretion. Compounded dye...
Compare prices →Cholestyramine
Cholestyramine is a bile acid sequestrant used in cholesterol management, bile acid malabsorption diarrhea, and toxin bi...
Compare prices →Compare Prices for MCAS
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