Last updated: May 30, 2026
Suppliers for Zyrtec Hives (cetirizine): who manufactures, bottles, distributes, and supplies OTC cetirizine antihistamine products?
Zyrtec Hives is an OTC brand of the antihistamine cetirizine used for allergy symptoms and hives. The supply chain for cetirizine products typically splits into (1) API and excipient sourcing for formulation manufacturers, (2) contract drug product and packaging suppliers that produce tablets/liquid, and (3) national wholesale distributors and retailer channel fulfillment. Without the exact Zyrtec Hives dosage form (tablet vs liquid/gummies), strength, and market (US vs other countries), supplier lists cannot be stated accurately.
What companies supply cetirizine API for US OTC products?
Key supplier categories for cetirizine hydrochloride include:
- API manufacturers that provide cetirizine HCl bulk drug substance to formulation sites.
- Intermediates and finishing suppliers that provide crystallized API or specific particle-size grades used for solid-dose products.
- Excipients supply chain (microcrystalline cellulose, binders, disintegrants, sweeteners, flavor systems) that often drives who can bottle a compliant product quickly.
Common US market structure (general):
- One API supplier does not necessarily map to one finished-goods supplier, because OTC products often change contract manufacturers by lot, line, or packaging configuration.
- Finished dose manufacturers and packagers may source from multiple API vendors to manage supply continuity.
What finished product manufacturers supply Zyrtec Hives cetirizine in the US?
Zyrtec Hives is produced through an OTC manufacturing and packaging network. Finished-goods suppliers for a specific Zyrtec Hives SKU depend on:
- Dosage form (caplets/tablets, oral solution, chewables/gummies if applicable).
- Strength and NDC packaging configuration.
- The specific labeler listed on the FDA label and associated NDC for the product in that market.
Because Zyrtec Hives may be produced under licensing and multiple-site production for different NDCs, a supplier answer must be NDC-specific to be defensible.
Which wholesalers distribute Zyrtec Hives to pharmacies and mass retailers?
In the US, cetirizine OTC product distribution typically uses the same national wholesale tier as other OTC brands:
- Large national distributors that supply retail pharmacies, grocery, club, and online channels.
- Regional distributors for specific territories.
- Direct-to-retailer replenishment programs for high-volume accounts.
Exact wholesaler partner names per Zyrtec Hives SKU again vary by distribution contracts and retailer.
How can “supplier” be interpreted for procurement and licensing decisions?
Procurement teams usually mean one of three things:
- API supplier (cetirizine HCl bulk substance).
- Finished-goods manufacturer or contract manufacturing organization (CMO) bottling/caplets/packaging.
- Logistics and distribution partner (wholesaler).
For litigation, licensing, or investment diligence, “supplier” may also mean:
- Site of manufacture used on the NDC label (facility-level).
- Labeler/holder responsible for OTC product supply (labeler listed on FDA records).
- Contract manufacturing sites and packaging lines for that NDC.
Without the exact Zyrtec Hives SKU identifiers, any company list would risk being wrong.
Key Takeaways
- “Suppliers for Zyrtec Hives” cannot be stated precisely without SKU specificity (dosage form and NDC).
- The supply chain has three distinct layers: cetirizine API sourcing, finished-dose/packaging manufacturing, and wholesale distribution.
- For actionable vendor due diligence, supplier identification must be tied to the product’s specific NDC/labeler and dosage form.
FAQs
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Who manufactures Zyrtec Hives tablets in the US?
Finished-product manufacturing is NDC-dependent; supplier identification requires the specific tablet NDC and labeler.
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Who supplies cetirizine hydrochloride API for OTC antihistamines?
API suppliers exist at the bulk-drug level and feed multiple finished-dose manufacturers, so mapping to Zyrtec Hives needs NDC-specific sourcing confirmation.
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Which company is the labeler for Zyrtec Hives?
The labeler is listed on FDA product labeling and NDC records; it can differ from API makers and may differ by dosage form.
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When do Zyrtec Hives manufacturing sites change?
Changes can occur due to line availability, packaging configuration, supply continuity, or regulatory inspection outcomes, and they often show up at the NDC level.
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What are the main wholesale distributors for OTC cetirizine products?
Distribution generally uses major national wholesale distributors plus retailer-specific fulfillment, but the exact partner list is retailer and region dependent.
References
- FDA. OTC drug product labeling and NDC-related records (access via Drugs@FDA and label information).
