Drug lookup
Drug reference

Triamcinolone Acetonide

Corticosteroid · Anti-inflammatory

Also known as Adcortyl Intra-articular / Intradermal, Kenalog, Azmacort, Nasacort AQ, Kenalog-10, Kenalog-40

CorticosteroidAnti-inflammatory
CDSCO approvedSchedule H
EXCRETION
not curated
INTERACTIONS
1 major
incl. contraindicated
PREGNANCY
not curated
Top interactionssee all 12
  • Live Attenuated VaccinesContraindicatedDatabase

Mechanism

Triamcinolone exerts predominantly glucocorticoid effects with minimal mineralcorticoid effect.

Indications

Suppression of inflammatory and allergic disordersAtopic eczemaAllergic contact dermatitisLichen simplexPrimary irritant dermatitisSeborrheic dermatitisPsoriasis of facePsoriasis of flexuresVaricose eczemaCystic acneAlopecia areataDiscoid LEHypertrophied scarsKeloidsLichen planusNail disordersPsoriasis of palmPsoriasis of solePsoriasis of elbowPsoriasis of kneeVariety of dermatological conditionsSevere inflammatory conditionsUnresponsive eczemaPsoriasis

Dosing

Adult
40 mg (max. per dose 100 mg), repeated if necessary, dose given for depot effect, to be administered into gluteal muscle; repeated at intervals according to patient’s response (deep intramuscular injection)
Max dose
100 mg per dose (deep intramuscular injection)

Side effects

Common
DizzinessFlushingHyperglycaemiaProximal myopathy (with high dosage)Thinning of epidermis (topical)Dermal atrophy (topical)Telangiectasia (topical)Striae (topical)Easy bruising (topical)Hypopigmentation (topical)Delayed wound healing (topical)Fungal infections (topical)Bacterial infections (topical)Thinning of epidermisDermal atrophyTelangiectasiaStriaeEasy bruisingHypopigmentationDelayed wound healingFungal and bacterial infectionsbruisingaccelerated osteoporosis
Serious
  • Peptic ulcers (hemorrhage and perforation)
  • Adrenal pituitary suppression (with large amounts or repeated application)
  • Cushing’s syndrome (rarely, with topical steroids)
  • Adrenal pituitary suppression (with large, repeated amounts)
  • Cushing’s syndrome (rarely)
  • glaucoma
  • cataracts

Drug interactions

Live Attenuated Vaccines
Contraindicated
Database

Reduced immune response to the vaccine, leading to potential vaccine failure, and increased risk of developing the disease from the live attenuated vaccine.

Avoid administering live attenuated vaccines during corticosteroid therapy (especially systemic, high-dose, or prolonged) and for a period after discontinuation (typically 1-3 months, depending on dose and duration). Consult immunization guidelines for specific recommendations.

Carbamazepine
Moderate
Database

Decreased systemic exposure and efficacy of triamcinolone acetonide, potentially leading to inadequate therapeutic response.

Monitor for reduced efficacy of triamcinolone acetonide. Consider increasing the dose of triamcinolone acetonide or using an alternative corticosteroid if co-administration is prolonged. Adjust dose based on clinical response.

Cyclosporine
Moderate
Database

Increased risk of adverse effects from both triamcinolone acetonide (e.g., Cushing's syndrome) and cyclosporine (e.g., nephrotoxicity, neurotoxicity).

Monitor for signs of toxicity of both drugs. Consider dose reduction of one or both agents if co-administration is necessary. Monitor drug levels (e.g., cyclosporine trough levels) and clinical parameters.

Furosemide
Moderate
Database

Increased risk of hypokalemia, which can lead to cardiac arrhythmias and muscle weakness.

Monitor serum potassium levels, especially in patients with pre-existing cardiac conditions or those on prolonged therapy. Consider potassium supplementation if necessary.

Insulin
Moderate
Database

Increased insulin requirements, leading to hyperglycemia and potential loss of glycemic control in diabetic patients.

Monitor blood glucose levels closely when initiating or discontinuing triamcinolone acetonide. Adjust insulin dose as needed. Educate patients on monitoring blood glucose and symptoms of hyperglycemia.

Ketoconazole
Moderate
Database

Increased systemic exposure to triamcinolone acetonide, potentially leading to enhanced corticosteroid effects and adverse reactions (e.g., Cushing's syndrome, adrenal suppression).

Monitor for signs of corticosteroid excess. Consider dose reduction of triamcinolone acetonide or use of an alternative antifungal if prolonged co-administration is necessary. If triamcinolone acetonide is topical/inhaled, systemic absorption is generally low, but caution is still advised with extensive use.

Nsaids (e.g., Ibuprofen, Naproxen)
Moderate
Database

Increased risk of gastrointestinal ulceration and bleeding.

Use with caution, especially in patients with a history of GI ulcers. Consider gastroprotective agents (e.g., PPIs) if co-administration is necessary, particularly for prolonged periods or in high-risk patients. Monitor for signs of GI bleeding.

Oral Hypoglycemics (e.g., Metformin, Glipizide)
Moderate
Database

Reduced efficacy of oral hypoglycemics, leading to hyperglycemia and potential loss of glycemic control in diabetic patients.

Monitor blood glucose levels closely when initiating or discontinuing triamcinolone acetonide. Adjust the dose of oral hypoglycemics or insulin as needed. Educate patients on monitoring blood glucose and symptoms of hyperglycemia.

Phenytoin
Moderate
Database

Decreased systemic exposure and efficacy of triamcinolone acetonide, potentially leading to inadequate therapeutic response.

Monitor for reduced efficacy of triamcinolone acetonide. Consider increasing the dose of triamcinolone acetonide or using an alternative corticosteroid if co-administration is prolonged. Adjust dose based on clinical response.

Rifampicin
Moderate
Database

Decreased systemic exposure and efficacy of triamcinolone acetonide, potentially leading to inadequate therapeutic response.

Monitor for reduced efficacy of triamcinolone acetonide. Consider increasing the dose of triamcinolone acetonide or using an alternative corticosteroid if co-administration is prolonged. Adjust dose based on clinical response.

Ritonavir
Moderate
Database

Increased systemic exposure to triamcinolone acetonide, potentially leading to enhanced corticosteroid effects and adverse reactions (e.g., Cushing's syndrome, adrenal suppression). This interaction is particularly well-documented for inhaled/intranasal corticosteroids.

Avoid co-administration if possible, especially with prolonged use. If unavoidable, monitor closely for signs of corticosteroid excess and consider dose reduction of triamcinolone acetonide. Educate patients on symptoms of hypercorticism.

Thiazide Diuretics (e.g., Hydrochlorothiazide)
Moderate
Database

Increased risk of hypokalemia, which can lead to cardiac arrhythmias and muscle weakness.

Monitor serum potassium levels, especially in patients with pre-existing cardiac conditions or those on prolonged therapy. Consider potassium supplementation if necessary.

Related guidelines

Other Corticosteroid drugs

Ask House about Triamcinolone Acetonide

Continue into a citation-backed clinical answer with the drug context already attached.

Sources: KD Tripathi 7e, Harrison 22e, Katzung, BNF·Verified: 2026-05-10 · House clinical team