Human Compounding / Mast cell activation syndrome
Mast cell activation syndrome (MCAS)Compounded medications for MCAS, made to fit you.
Many people with MCAS react to the dyes, fillers and preservatives in commercial medications, or need doses that aren't sold. We prepare the medications your prescriber orders in the strength and form that works for you, and we're glad to talk it through with you and your prescriber.
- Dye-free and allergen-free optionsMade without the ingredients you react to, when your prescriber orders it.
- Custom strengthsDoses no manufacturer makes, including small steps up or down.
- Forms you can takeCapsules, flavored liquids and more.
- A pharmacist to askTell us your sensitivities and we'll talk through ingredients with you and your prescriber.
Medications commonly used in MCAS.
Your prescriber chooses which medications are right for you and how much of each. Tap a medication to see its forms, uses and side effects in our library.
Ketotifen
Mast cell stabilizer. Oral ketotifen isn't sold as a commercial product in the US, so it's prepared by compounding pharmacies. Capsules.
DetailsH1 antihistamines
Dye-free capsules and flavored liquids in custom strengths:
Cetirizine · Levocetirizine · Loratadine · Diphenhydramine · Hydroxyzine · Cyproheptadine · Chlorpheniramine
Famotidine
H2 blocker. Capsules and flavored oral suspension.
DetailsMontelukast
Leukotriene blocker. Capsules.
DetailsLow-dose naltrexone (LDN)
Prescribed off-label for some inflammatory and immune conditions. 1.5, 3 and 4.5 mg tablets are $60 for 90.
About LDNSomething else?
Not listed here? Call us. We may be able to prepare it, or we'll talk through options with your prescriber.
MCAS treatment is individual, and your prescriber decides what's right for you. Many uses are off-label. Compounded medications are not FDA-approved. They are prepared for an individual patient based on a prescription.
Learn more about MCAS.
Trusted information from independent organizations. We're not affiliated with them.
The Mast Cell Disease Society
An overview of mast cell activation syndromes, plus patient guides and support from a nonprofit focused on mast cell diseases.
tmsforacure.orgCleveland Clinic
A plain-language guide to MCAS symptoms, triggers, diagnosis and treatment.
clevelandclinic.orgMast Cell Action
A patient charity with information, guides and support for people living with mast cell conditions.
mastcellaction.orgFor prescribers: AAAAI work group report
Mast cell activation syndrome diagnosis and management, from the American Academy of Allergy, Asthma & Immunology (J Allergy Clin Immunol, 2019).
jacionline.orgCall us. A person will answer.
Tell us what you need and we'll help you get it handled, whether it's a transfer, a compound or a question for your pharmacist.