[{"data":1,"prerenderedAt":236},["ShallowReactive",2],{"ingredient-tixocortol-21-pivalate":3},{"id":4,"title":5,"body":6,"category":196,"commonProducts":197,"description":199,"extension":200,"icon":201,"inciName":202,"irritantReason":203,"isCommonIrritant":204,"keyFacts":205,"localNames":215,"meta":216,"navigation":217,"path":218,"relatedArticles":219,"seo":223,"severity":224,"slug":225,"stem":226,"subtitle":227,"symptoms":228,"synonyms":233,"__hash__":235},"ingredients/learn/ingredients/tixocortol-21-pivalate.md","Tixocortol-21-Pivalate",{"type":7,"value":8,"toc":186},"minimark",[9,14,25,32,36,39,72,75,78,82,108,112,115,138,149,153,156,159,162,166],[10,11,13],"h2",{"id":12},"what-is-tixocortol-21-pivalate","What is Tixocortol-21-Pivalate?",[15,16,17,20,21,24],"p",{},[18,19,5],"strong",{}," (INCI: Tixocortol Pivalate; brand name: Pivalone) is a synthetic thioester analog of hydrocortisone that serves a unique clinical purpose: it is used almost exclusively as a ",[18,22,23],{},"patch test antigen"," to identify allergy to Group A corticosteroids. It was specifically designed to be an effective patch test marker for hydrocortisone-type steroid allergy — its thioester modifications make it a better marker than hydrocortisone itself (which does not reliably elicit patch test reactions even in allergic individuals).",[15,26,27,28,31],{},"The four groups of corticosteroid contact allergens (A, B, C, D1, D2) were classified by Coopman et al. based on their molecular structure and cross-reaction patterns. ",[18,29,30],{},"Group A"," includes non-fluorinated steroids with a 21-hydroxyl or acetate group — the hydrocortisone family. Tixocortol-21-pivalate is the only validated marker for this group.",[10,33,35],{"id":34},"why-does-tixocortol-21-pivalate-matter-clinically","Why does Tixocortol-21-Pivalate matter clinically?",[15,37,38],{},"A positive patch test to tixocortol-21-pivalate indicates that the patient is likely allergic to:",[40,41,42,49,55,61,67],"ul",{},[43,44,45,48],"li",{},[18,46,47],{},"Hydrocortisone"," (the most commonly used OTC topical corticosteroid)",[43,50,51,54],{},[18,52,53],{},"Hydrocortisone acetate"," (in many medicated preparations)",[43,56,57,60],{},[18,58,59],{},"Prednisolone"," (oral and topical)",[43,62,63,66],{},[18,64,65],{},"Methylprednisolone"," (systemic and topical)",[43,68,69],{},[18,70,71],{},"Cortisone acetate",[15,73,74],{},"This is clinically significant because hydrocortisone is the most widely self-purchased topical corticosteroid globally — available OTC in many countries for eczema, insect bites, and rashes. Patients with Group A steroid allergy who self-treat with hydrocortisone will experience paradoxical worsening rather than improvement.",[15,76,77],{},"The mechanism is the same as for budesonide: modified Type IV delayed hypersensitivity, where the paradoxical immunosuppressive action of the steroid masks the allergic reaction until the steroid concentration falls or a higher-sensitizing steroid molecule overwhelms the masking.",[10,79,81],{"id":80},"where-is-the-group-a-steroid-concern-relevant","Where is the Group A steroid concern relevant?",[40,83,84,90,96,102],{},[43,85,86,89],{},[18,87,88],{},"OTC hydrocortisone cream (0.5%, 1%)",": The most widely used self-medication for mild eczema, rashes, and itching",[43,91,92,95],{},[18,93,94],{},"Prescription hydrocortisone preparations",": Higher-strength hydrocortisone (2.5%) for facial eczema",[43,97,98,101],{},[18,99,100],{},"Prednisolone oral therapy",": For systemic allergic reactions (though oral contact allergy is less common)",[43,103,104,107],{},[18,105,106],{},"Oral care preparations",": Some aphthous ulcer preparations use hydrocortisone succinate",[10,109,111],{"id":110},"how-to-spot-group-a-steroids-on-labels","How to spot Group A steroids on labels",[15,113,114],{},"On pharmaceutical drug labels:",[40,116,117,122,128,133],{},[43,118,119,121],{},[18,120,47],{}," — the generic INN",[43,123,124,127],{},[18,125,126],{},"Hydrocortisone Acetate"," — esterified form",[43,129,130,132],{},[18,131,59],{}," — a more potent Group A steroid",[43,134,135,137],{},[18,136,65],{}," — prescription systemic and topical",[15,139,140,141,144,145,148],{},"In India: ",[18,142,143],{},"Hydrocortisone cream"," (various generics), ",[18,146,147],{},"Cortizone"," preparations, and combination creams containing hydrocortisone are available OTC and by prescription.",[10,150,152],{"id":151},"in-indian-products","In Indian products 🇮🇳",[15,154,155],{},"Hydrocortisone-containing products are widely available in India. OTC hydrocortisone cream is sold at Indian pharmacies. Many \"anti-itch\" and \"rash cream\" products contain hydrocortisone. Prescription prednisolone is one of the most commonly prescribed oral corticosteroids in India for allergic conditions.",[15,157,158],{},"The massive usage of combination steroid creams in India (potent steroids like clobetasol combined with antifungals and antibiotics) creates a different but related concern: patients developing steroid allergy to more potent molecules. However, Group A allergy to hydrocortisone is distinct and specifically important for those who reach for OTC hydrocortisone as a first-line treatment.",[15,160,161],{},"Any Indian patient with eczema that consistently fails to respond to OTC hydrocortisone cream — or who notices worsening — should seek patch testing for tixocortol-21-pivalate at a contact dermatitis clinic.",[10,163,165],{"id":164},"safer-alternatives","Safer alternatives",[40,167,168,174,180],{},[43,169,170,173],{},[18,171,172],{},"Tacrolimus (Protopic) or pimecrolimus (Elidel)",": Steroid-free calcineurin inhibitors for eczema; not cross-reactive with corticosteroids",[43,175,176,179],{},[18,177,178],{},"Group B steroids (if Group A allergy only)",": Budesonide, triamcinolone acetonide, fluocinolone — these are Group B steroids that do not cross-react with Group A. Must be confirmed negative by patch testing before use",[43,181,182,185],{},[18,183,184],{},"Non-steroidal eczema management",": Barrier repair creams, wet wrap therapy, antihistamines for itch management",{"title":187,"searchDepth":188,"depth":188,"links":189},"",2,[190,191,192,193,194,195],{"id":12,"depth":188,"text":13},{"id":34,"depth":188,"text":35},{"id":80,"depth":188,"text":81},{"id":110,"depth":188,"text":111},{"id":151,"depth":188,"text":152},{"id":164,"depth":188,"text":165},"corticosteroid",[143,198],"Topical steroid preparations","A thioester corticosteroid used exclusively as a patch test marker for Group A (hydrocortisone-type) steroid contact allergy. A positive result indicates sensitivity to hydrocortisone and related steroids.","md","💉","Tixocortol Pivalate",null,false,[206,209,212],{"label":207,"value":208},"Group A marker","Tixocortol-21-pivalate is the definitive patch test marker for Group A (non-fluorinated, 21-hydroxyl) corticosteroid allergy — the hydrocortisone structural group",{"label":210,"value":211},"Cross-reactions","Group A allergy includes: hydrocortisone, hydrocortisone acetate, prednisolone, methylprednisolone, and all steroids with a free 21-hydroxyl or acetate group",{"label":213,"value":214},"Complementary testing","Always tested alongside budesonide (Group B marker) for comprehensive corticosteroid allergy screening — missing either test leaves the workup incomplete",[],{},true,"/learn/ingredients/tixocortol-21-pivalate",[220],{"slug":221,"title":222},"/learn/patch-test-results-now-what","Patch Test Results: Now What?",{"title":5,"description":199},"moderate","tixocortol-21-pivalate","learn/ingredients/tixocortol-21-pivalate","The patch test marker for Group A corticosteroid allergy — hydrocortisone-type steroid sensitivity",[229,230,231,232],"Paradoxical worsening of dermatitis with hydrocortisone treatment","Contact dermatitis at hydrocortisone application site","Oral mucosal reactions from hydrocortisone-containing preparations","Nasal mucosal reactions from steroid sprays in Group A-allergic patients",[202,234],"Pivalone","32F-94gTn31NwpSu9gBE4dTQVR-djOIJuBqz2DyuVOo",1778416676553]