Drugs For Allergy

Focus: Histamine signaling and pharmacologic management of allergic disease. Organized by drug class with clinical treatment references below.

H1 Antihistamines — First Generation (Sedating)

H1 Antihistamines — Second Generation (Non-Sedating)

Second Generation Histamine-1 Antagonists

H2 Blockers

Mast Cell Stabilizers

Leukotriene Pathway Modifiers

Leukotriene Modifiers

Corticosteroids in Allergy

Corticosteroids

Intranasal

Systemic

Rescue Therapy

Biologic Therapies For Allergy

Clinical Use

Use this section when you’re starting from the patient presentation.

(Intranasal steroid first-line; add antihistamine based on symptoms)

(Scheduled 2nd-gen H1 blockers; escalate; chronic urticaria options)

(Distinguish allergic vs ACEi/HAE)

(IM epinephrine first-line; adjuncts second)

Mechanisms

Use this section when you’re starting from physiology/pathophysiology.

Learning Tools

Notes