Last Updated: August 9, 2026

CALCIUM GLUCONATE Drug Patent Profile


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Which patents cover Calcium Gluconate, and when can generic versions of Calcium Gluconate launch?

Calcium Gluconate is a drug marketed by Amneal, B Braun Medical, Caplin, Fresenius Kabi Usa, Hq Spclt Pharma, Nivagen Pharms Inc, Somerset, and Sagent. and is included in nine NDAs. There are two patents protecting this drug.

The generic ingredient in CALCIUM GLUCONATE is calcium gluconate. There are two hundred and eighty-two drug master file entries for this compound. Thirteen suppliers are listed for this compound. Additional details are available on the calcium gluconate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Calcium Gluconate

A generic version of CALCIUM GLUCONATE was approved as calcium gluconate by FRESENIUS KABI USA on June 15th, 2017.

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Recent Clinical Trials for CALCIUM GLUCONATE

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SponsorPhase
University of MichiganPHASE2
London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph'sPHASE2
Second Affiliated Hospital of Wenzhou Medical UniversityPHASE1

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Pharmacology for CALCIUM GLUCONATE

US Patents and Regulatory Information for CALCIUM GLUCONATE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Sagent CALCIUM GLUCONATE IN SODIUM CHLORIDE calcium gluconate SOLUTION;INTRAVENOUS 219619-002 Dec 30, 2025 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Amneal CALCIUM GLUCONATE calcium gluconate SOLUTION;INTRAVENOUS 216611-001 May 10, 2024 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Amneal CALCIUM GLUCONATE IN SODIUM CHLORIDE calcium gluconate SOLUTION;INTRAVENOUS 217174-002 Sep 5, 2023 AP RX No Yes ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Hq Spclt Pharma CALCIUM GLUCONATE IN SODIUM CHLORIDE calcium gluconate SOLUTION;INTRAVENOUS 210906-003 Jun 4, 2021 RX Yes Yes ⤷  Start Trial ⤷  Start Trial Y ⤷  Start Trial
Caplin CALCIUM GLUCONATE calcium gluconate SOLUTION;INTRAVENOUS 218840-003 May 4, 2026 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
B Braun Medical CALCIUM GLUCONATE calcium gluconate SOLUTION;INTRAVENOUS 216541-001 Aug 21, 2023 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Nivagen Pharms Inc CALCIUM GLUCONATE calcium gluconate SOLUTION;INTRAVENOUS 213071-001 Oct 14, 2022 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration
Last updated: July 6, 2026

Calcium gluconate market dynamics and financial trajectory: pricing, demand drivers, competition, and exclusivity risk

Calcium gluconate is a long-established, widely genericized intravenous and oral calcium salt with limited brand-style patent shelter. Market dynamics are dominated by hospital usage, shortages, supply chain reliability, and government procurement pricing rather than innovation cycles. Financial trajectory trends toward low gross margins, periodic volatility from manufacturing capacity constraints, and stable baseline demand tied to electrolyte management in acute care and perioperative settings.


What drives demand for calcium gluconate in hospitals and acute care?

Calcium gluconate demand is primarily medical, not payer-innovation driven. It is used for calcium repletion and for select indications where IV calcium is clinically indicated.

Key clinical use cases that sustain baseline volume

  • Hypocalcemia management in acute care (symptomatic or high-risk patients).
  • Adjunct treatment in hyperkalemia and other emergency electrolyte derangements where IV calcium is used to stabilize cardiac membranes.
  • Perioperative and critical care electrolyte correction.
  • Neonatal and pediatric use in calcium repletion protocols, where product availability can be clinically consequential.

Procurement behavior and volume stickiness

  • Hospitals tender calcium products via group purchasing organizations (GPOs) and contract pharmacies with competitive bid cycles.
  • Switching costs are low because calcium gluconate is a generic active ingredient, so formularies respond quickly to net price and availability.
  • Product selection frequently hinges on concentration, packaging format, and supply continuity.

How do shortages and supply chain constraints affect calcium gluconate pricing?

Calcium gluconate is sensitive to manufacturing uptime and upstream chemical availability. When supply tightens, pricing can spike quickly due to substitutability limits within a specific dosage form and concentration.

Typical market behavior during supply disruptions

  • Contract prices reprice after allocation events, with hospitals receiving partial shipments.
  • Wholesalers mark up due to scarcity and logistics costs.
  • Alternative calcium salts (e.g., calcium chloride) may partially absorb demand, but substitution is constrained by tolerability, administration route, and local practice patterns.

What historically matters most commercially

  • Sterile manufacturing capacity and sterile fill-finish availability.
  • Batch release timelines and QC throughput.
  • Regulatory inspection outcomes affecting production schedules.

What is the competitive landscape for calcium gluconate injections and oral formulations?

Competition is dominated by multiple generic manufacturers across injectable and oral formats. The active ingredient’s incumbency does not translate into strong proprietary differentiation.

Competitive structure by dosage form

  • Injectable calcium gluconate: multiple abbreviated new drug (ANDA) entrants historically; pricing tied to tender outcomes.
  • Oral calcium gluconate (tablets/syrup): competes with other oral calcium salts (carbonate, citrate, lactate) and combination supplements.

Substitution dynamics

  • IV formulations compete within the “IV calcium” use case with calcium chloride and other routes/products depending on hospital protocol.
  • Oral calcium gluconate competes with OTC and supplement pipelines where price and patient adherence dominate.

What is the pricing and revenue profile for calcium gluconate products?

The revenue and margin profile is typically characteristic of mature generics:

  • Modest unit economics.
  • Low single-digit to low-teens gross margins in stable periods, pressured further by tender pricing.
  • Revenue scale is driven by hospital throughput and administered volume, not exclusivity.

Revenue trajectory expectations by segment

  • Injection segment: steadier demand with episodic pricing spikes from supply events.
  • Oral segment: exposed to OTC and supplement demand elasticity, with higher promotional competition and brand-like shelf dynamics driven by consumer distribution.

How does exclusivity work for calcium gluconate: patents, ANDA exclusivity, and market entry risk?

Calcium gluconate’s clinical use is longstanding, so the market does not typically depend on long patent tails at the active ingredient level. Commercial protection, where present, is often limited to:

  • Specific concentration or dosage form manufacturing/packaging.
  • Specific stability or lyophilized/sterile process variations (if any are patented).
  • New formulations with narrow claims, if pursued.

Practical exclusivity reality

  • For most investors and litigators, calcium gluconate behaves like an “easy-to-enter” mature generic active ingredient once dosing form and regulatory pathway are cleared.
  • Paragraph IV risk is generally lower in established products if the entry is already populated and branded-like exclusivity does not exist.

When does calcium gluconate lose exclusivity and what launch timing constraints exist?

For widely distributed, mature generic actives, there is often no single “exclusivity calendar” that governs the full market. Entry constraints are mostly operational:

  • ANDA approvals can come with post-approval scale-up constraints.
  • Sterile manufacturing capacity, line clearance, and batch release capacity can delay commercial launch even after regulatory approval.

Timing drivers that affect effective launch date

  • Procurement cycles and formulary updates.
  • Allocation rules during supply stabilization.
  • Wholesale distribution lead times after first commercial shipments.

What generic entry risks exist for calcium gluconate?

Entry risk is more about execution than legal barriers.

Main commercial and operational risks

  • Product discontinuation risk if a manufacturer exits due to low profitability.
  • Supply allocation and limited distribution during early ramp.
  • QC failures and batch release delays in sterile products.
  • Price erosion from competitive tenders after launch.

Legal/IP risk profile (typical for mature actives)

  • Fewer blockbuster claims are expected to survive broadly across formulations.
  • Litigation, when it exists, tends to focus on specific formulation/process patents rather than broad method-of-treatment claims.

How does calcium gluconate compare with calcium chloride and other IV calcium alternatives?

Therapeutic substitution is the central market dynamic for IV calcium salts.

Clinically relevant differentiators

  • Administration: calcium chloride is often more caustic and typically requires careful administration practices; calcium gluconate is frequently used when peripheral administration is preferred.
  • Institutional practice: hospital protocols drive preference, affecting share even when ingredient-level efficacy is comparable for certain clinical intents.

Commercial impact

  • If calcium gluconate supply tightens, hospitals may temporarily shift usage to calcium chloride.
  • When gluconate availability returns, share can revert quickly.

What is the Orange Book status of calcium gluconate and which products are protected?

A complete Orange Book status map requires product-level listing and patent number extraction for the relevant NDCs. Market participants generally track by dosage form (injectable vs oral), concentration, and manufacturer.

No product-level Orange Book listing set is included in this response.


What patent litigation affects calcium gluconate and its generic competitors?

For mature calcium salts, litigation is usually narrow and product-specific. Public litigation tends to concentrate on:

  • Sterile process or formulation-specific patents.
  • Stability or container closure system claims for particular presentations.
  • Limited method-of-use claims if separately patented.

No case-level litigation docket set is included in this response.


What FDA regulatory pathway shapes the competitive timetable for calcium gluconate?

Competition is dominated by ANDAs for injectables and orals.

Injectable-specific regulatory bottlenecks

  • Sterile manufacturing comparability.
  • Validation of critical process parameters for aseptic fill-finish.
  • Stability and shelf-life documentation, which drive commercial readiness.

Practical timeline implications

  • Regulatory approval does not guarantee immediate availability due to manufacturing ramp and distribution qualification.

How do contracting models and GPO tendering influence financial performance?

Calcium gluconate is frequently bought through:

  • GPO contract pricing frameworks.
  • State and federal procurement schedules.
  • Hospital system multi-site contracts.

Key financial effects

  • Net price compression after additional generic launches.
  • Contract compliance thresholds that can advantage incumbents if they win multi-year tenders.
  • Margin volatility tied to tender cycles and supply constraints.

What financial trajectory should be expected for a new entrant or incumbent manufacturer?

A new entrant’s financial trajectory typically follows three phases:

  1. Ramp and launch: lower volumes initially; profitability affected by ramp QC costs and working capital.
  2. Tender competition: rapid price decline as supply increases and bid competition intensifies.
  3. Stabilization: margins stabilize to tender-determined levels; exits can occur if profitability falls below acceptable thresholds.

Incumbent financial positioning

  • If an incumbent controls supply during disruptions, short-term earnings can improve.
  • Sustained outperformance generally requires manufacturing reliability and contract wins, not patent protection.

Key indicators to monitor for calcium gluconate earnings sensitivity

High-leverage operational indicators:

  • Sterile manufacturing capacity utilization.
  • Batch release timelines and any FDA warning letters or inspection outcomes tied to aseptic controls.
  • Allocation and shortage reporting patterns.
  • GPO and large-hospital tender award cycles.
  • Wholesale inventory levels and pricing indices for generic injectables.

Key Takeaways

  • Calcium gluconate demand is driven by electrolyte management in acute and perioperative care with baseline stability and high procurement sensitivity.
  • Pricing and revenue can swing sharply during supply constraints due to limited short-term substitution within specific IV practice patterns.
  • The market is structurally mature and genericized; exclusivity typically does not create long brand-like financial arcs.
  • Competitive advantage is operational: manufacturing reliability, sterile execution, and contract tender performance.
  • Legal and Orange Book-driven barriers are generally less central than execution and supply continuity for this active.

FAQs

1) Is calcium gluconate demand seasonal or linked to specific hospital utilization cycles?

Hospital utilization and emergency department volumes can influence short-term demand, but calcium gluconate is not typically characterized by strong seasonal swings like some specialty drugs. It is more tied to continuous acute-care electrolyte management.

2) How does NDC-level product packaging (ready-to-use vs vial) affect market share?

Packaging and concentration compatibility with hospital protocols can govern switching. Ready-to-use presentations can win contracts where workflow and administration practices favor them.

3) Which substitution pathways reduce calcium gluconate pricing power during shortages?

Hospitals may shift some IV calcium demand to calcium chloride or alternative calcium management strategies based on protocol, which caps price increases during temporary shortages.

4) What cost drivers most affect sterile calcium gluconate manufacturing economics?

Aseptic fill-finish throughput, media QC testing costs, batch release cycle time, solvent/chemical input costs, and compliance-related overhead are typical major drivers.

5) What type of new patents are most likely to matter in mature calcium gluconate markets?

Narrow patents involving specific formulations, stability, container closure systems, or process parameters for a particular presentation tend to be more relevant than broad active-ingredient claims.


References (APA)

No sources were cited in this response.

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