- What it does
- Antihistamines or H1 blockers suppress the body's immune response to allergens by binding to histamine receptors, alleviating symptoms such as sneezing, itching, hives, and nasal congestion. Representative products in this family include oral diphenhydramine formulations, cetirizine tablets, and injectable promethazine.
- How it flows
- This category consists of physical pharmaceutical goods distributed as tablets, capsules, syrups, or injectables. They are ingested directly by patients or administered by medical professionals in clinical settings, flowing through regulated wholesale and retail pharmacy supply chains.
- Summary
- Antihistamines or H1 blockers are compounded into bulk pharmaceutical formulations, packaged into bottles or blister packs, stored in regulated distribution centers, and shipped through medical logistics networks to retail pharmacies and hospitals for patient administration.