Lincyn (Lincomycin)

Quick links to important sections

Lincyn (Lincomycin)

Medically reviewed

Marina Burgos

Last updated on 22/12/2025

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Lincyn (Lincomycin)

Quick Facts

Property Description
Active ingredient Lincomycin hydrochloride
Form Capsule, sterile injection solution, topical solution
Pharmacological class Lincosamide antibiotic
Common use Systemic anti-infective
Origin Derived from Streptomyces lincolnensis (natural source)

What Type of Medicine is Lincyn (Lincomycin) and How Does It Function?

Lincyn is a prescription-only medicine containing the active ingredient Lincomycin hydrochloride, which is classified as a lincosamide antibiotic and functions as a systemic anti-infective. This specialized classification means its general purpose is to fight specific bacterial infections by limiting the microorganism's ability to grow and spread throughout the body. Lincomycin functions as an agent used to combat certain gram-positive bacteria.

Belonging to the distinct lincosamide class, Lincomycin acts by targeting the internal machinery of the bacteria, specifically functioning as a protein synthesis inhibitor. This action prevents the susceptible bacteria from constructing the essential proteins they need for survival and replication. By effectively halting this bacterial growth machinery, the drug provides crucial time for the body's natural immune system to successfully clear the existing infection, making it a critical choice when common antibiotics are less effective.


Composition, Origin, and Available Forms

The core composition of Lincyn utilizes Lincomycin that is derived from a natural source, having been originally isolated from the fermentation processes of the bacterium Streptomyces lincolnensis, clarifying its origin. This chemical origin supports its designation as a distinct lincosamide agent, separate from penicillins or macrolides.

As a single-agent product, it is prepared in several drug forms to accommodate various treatment needs and route of administration options. These forms include the capsule for oral intake, allowing systemic delivery via the digestive tract, and a sterile solution for injection—often administered parenterally—for rapid, direct systemic delivery. Common trade names containing this same formulation include Lincocin and Lincorex. This range of forms ensures medical professionals can select the most appropriate delivery method to ensure the active ingredient reaches the specific site of the bacterial condition efficiently.

Regulatory References

  1. NIH DailyMed Lincomycin Information

What side effects are possible with Lincyn (Lincomycin)?

Possible side effects and safety information

Official regulatory documents emphasize that Lincomycin is generally reserved for treating serious bacterial infections where other less toxic antibiotics are deemed inappropriate. The documented safety profile outlines potential reactions across multiple physiological systems, although for many effects, the precise frequency is not formally established in regulatory summaries.


Key Regulatory Safety Classifications

Adverse reactions are primarily classified by the systems they affect:

  • Gastrointestinal Disorders: These represent a primary safety focus, involving diarrhea, nausea, vomiting, abdominal pain, and irritation of the mouth (stomatitis) or tongue (glossitis).
  • Blood and Lymphatic System Disorders: Rare but serious reactions are documented, including changes in blood cell counts such as agranulocytosis and aplastic anemia.
  • Skin and Subcutaneous Tissue Disorders: Reactions include rash and urticaria (hives), alongside the reporting of severe skin conditions such as Stevens-Johnson syndrome (SJS) and Toxic epidermal necrolysis (TEN).

Serious Adverse Reactions and Safety Cautions

The most significant safety caution involves the potential for Pseudomembranous Colitis, including Clostridium difficile-associated diarrhea (CDAD), which can be severe and potentially fatal. This serious reaction has been reported to occur not only during treatment but also more than two months after the antibiotic therapy has stopped.

Population-Specific Notes: Patients with hepatic or renal impairment may experience a prolonged effect due to altered elimination. Furthermore, the injection solution carries specific warnings related to the preservative Benzyl Alcohol and its association with serious adverse effects in pediatric patients, particularly neonates. Rapid intravenous administration can also be associated with hypotension and, rarely, cardio-respiratory arrest.

Overdose and Emergency Response

Overdose and when to seek help

Official regulatory information describes Lincomycin overdose primarily as an exaggeration of known adverse effects and an increased risk of severe outcomes. Overdose may present with severe gastrointestinal effects, including colitis, and carries a risk of secondary infections. Severe, life-threatening outcomes reported in official documentation include cardio-respiratory arrest and hypotension, particularly associated with rapid intravenous administration. Fatal colitis is also a documented, severe risk.

Required Emergency Actions

Seek immediate medical attention or call a Poison Control center immediately if an overdose is suspected or has occurred. The drug must be discontinued immediately if a severe allergic reaction, such as anaphylaxis, develops. For such serious reactions, the labeling mandates immediate emergency treatment with Epinephrine along with supportive administration of Oxygen and intravenous corticosteroids as indicated.

Management and Monitoring

No specific antidote is known for Lincomycin overdose. Treatment is strictly limited to symptomatic and supportive measures. Special caution and monitoring of serum Lincomycin levels are required for patients with severe renal or hepatic impairment, as the drug's half-life is significantly prolonged in these populations. Additionally, the risk of benzyl alcohol toxicity (gasping syndrome) in premature or low-birth-weight infants is specifically noted in regulatory warnings for the injectable formulation.

Therapeutic Uses of Lincyn (Lincomycin)

What Lincyn (Lincomycin) Treats: Main Uses and Benefits

Lincomycin is a specialized antibiotic agent reserved for treating serious bacterial infections caused by susceptible strains of bacteria, including streptococci, pneumococci, and staphylococci. Its use is generally intended for penicillin-allergic patients or others for whom a penicillin is deemed medically inappropriate, providing a relevant alternative option in high-risk scenarios. This focus helps guide the application of the drug in cases where its therapeutic capabilities are considered appropriate for supporting infection management.


The medication is commonly used for treating serious, deep-seated conditions such as osteomyelitis (bone infection), septic arthritis (joint infection), and widespread illnesses like septicemia (blood poisoning). It also manages severe, localized infections of the skin and soft tissues, including extensive cellulitis and deep abscesses, alongside serious lower respiratory tract infections like bacterial pneumonia. In these contexts, Lincyn helps ease severe pain, swelling, and warmth associated with inflammatory states, and it supports the patient during difficult episodes by easing distress and contributing to day-to-day comfort.


Quick Fact: Symptom Support for Serious Conditions Description
Primary Focus Managing symptoms related to systemic imbalance and deep-seated infection.
Symptom Domains Helps ease severe pain, swelling, and high fever associated with the presence of bacteria.
Patient Benefit Supports the patient by easing the overall symptom load during acute episodes.

Regulatory References

  1. NIH DailyMed overview

Eligibility and Restrictions for Use

Lincomycin eligibility is strictly defined by regulatory authorities to minimize risk and focuses on established population safety profiles. The regulatory framework establishes clear restrictions regarding who can and cannot receive the medication.

Category Official Eligibility Status
Contraindications Hypersensitivity to lincomycin or the related antibiotic, clindamycin. Safety is not established for pediatric patients under one month old. The injection form is contraindicated for newborns and low-birth-weight infants if it contains Benzyl Alcohol.
Infection Scope Must be reserved for serious bacterial infections; not for use in nonbacterial infections (e.g., most upper respiratory tract infections).

Populations Requiring Caution

  • Organ Function: Use requires caution in patients with impaired renal or hepatic function due to prolonged half-life. Severe renal impairment mandates a formal dose reduction.
  • Medical History: Caution is required for those with a history of colitis, gastrointestinal disease, asthma, or significant allergies.
  • Older Adults: Should be carefully monitored for changes in bowel frequency.
  • Pregnancy/Lactation: Use in pregnancy only if clearly needed due to the lack of adequate studies. Lincomycin appears in human milk, requiring a decision to discontinue the drug or nursing.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile for Lincomycin is structured around pharmacodynamic effects and physical incompatibilities, based strictly on official government regulatory labeling.


Interactions Resulting in Restricted or Contraindicated Combinations

Co-administration with Erythromycin or chemically related Macrolide antibiotics is formally advised against due to a documented risk of antagonism, which could potentially reduce the intended therapeutic effect. Additionally, Lincomycin must not be physically mixed in solution with Novobiocin or Kanamycin as they are chemically and physically incompatible, a restriction mandated to prevent loss of activity or complications.


Interactions with Enhanced Effects

Lincomycin is officially documented as possessing intrinsic neuromuscular blocking properties. Co-administration with other neuromuscular blocking agents (such as those used in surgical settings) may enhance the action of these agents, a pharmacodynamic effect requiring caution as noted in regulatory guidelines.


Population-Specific Exposure Considerations

The drug’s clearance rate is formally affected by specific conditions. For patients with impaired hepatic or renal function, the serum half-life of Lincomycin is significantly prolonged, leading to increased systemic exposure. Furthermore, the preservative Benzyl Alcohol present in the injectable form poses an increased risk of accumulation and toxicity for pediatric patients and neonates, particularly those with existing liver or kidney impairment.

Mechanism of Action

How Lincyn (Lincomycin) Works

Lincyn (Lincomycin) is a lincosamide antibiotic that functions by interfering with the essential process of protein production inside susceptible bacteria. Its action is highly specific, focused exclusively on the bacterial cell's internal machinery.


Targeted Ribosomal Blockade and Protein Synthesis Inhibition

Lincomycin's primary mechanism involves molecular binding to the 50S ribosomal subunit , specifically targeting the 23S ribosomal RNA (rRNA) component within the Peptidyl Transferase Center (PTC). This interaction results in the inhibition of peptide chain elongation by physically blocking the ribosomal Exit Tunnel through which nascent proteins must pass. The resulting cessation of essential protein synthesis prevents the bacteria from producing the enzymes and structural components required for proliferation.


Bacteriostatic Effect and Mechanism Limitations

The physiological consequence of halting bacterial protein production is a bacteriostatic effect, meaning the drug stops the organisms from growing and dividing. Mechanistic efficacy is constrained by the bacteria's ability to acquire genes that cause 23S rRNA methylation; this modification alters the drug's binding site, leading to reduced affinity and a resulting functional constraint against resistant strains.

Dosage and Administration Information

Official Administration Guidelines for Lincomycin

Lincomycin (Lincyn) is administered via Intramuscular (IM) injection, Intravenous (IV) infusion, or Oral capsule, as determined by your healthcare provider and the infection severity. IV administration may also be given via Subconjunctival injection for ophthalmological use.

Administration Details and Dosing

Route Adult Dosing (Serious Infections) Preparation and Timing
Intramuscular (IM) 600 mg every 24 hours (q24h). For more severe infections, 600 mg every 12 hours (q12h) or more often. Not applicable
Intravenous (IV) 600 mg to 1 gram every 8 to 12 hours. Maximum daily dose is 8 grams. Must be diluted: 1 gram must be diluted in 100 mL of appropriate solution and infused over not less than one hour (60 minutes).
Oral Capsule 500 mg 3 to 4 times per day. Take 1 or 2 hours before or after a meal. Swallow capsules with a sufficient quantity of water.

Age-Specific and Renal Adjustments

For pediatric patients over 1 month of age, the dose is calculated based on body weight, typically 10 mg/kg IM every 12 to 24 hours, or 10 to 20 mg/kg/day IV in divided doses. When therapy is required for patients with severe renal impairment, the appropriate dose is adjusted to 25% to 30% of the dose recommended for patients with normal kidney function.

Recent Clinical Evidence

Research Evidence / Overview of Studies

The research into Lincyn (Lincomycin) research describes its use in specific, serious bacterial infections. These studies help show what has been observed so far in specific settings, but they do not determine whether an individual will respond similarly.

Evidence for Deep-Seated Bone and Joint Infections

The evidence base for bone and joint infections primarily draws from older records, including retrospective chart reviews and accumulated clinical experience. These reports monitored tracking clinical status and also examined the medicine’s ability to reach infected bone tissue. Studies report how symptoms evolved in the observed populations, and findings contributed to its authorization for these uses. Long-term effects are not fully established, and comparative evidence is lacking from recent randomized trials against other antibiotic options. Evidence quality varies across studies.

Evidence for Serious Skin and Soft Tissue Infections

Lincomycin was evaluated in clinical trials and observational studies for serious skin and soft tissue infections. These studies research examined how symptoms change by tracking outcomes linked to inflammatory states over short treatment phases (typically 5 to 14 days). The findings contribute to the broader evidence landscape regarding how these infections was observed in the study populations. Sample sizes were modest in many reports, and evidence is limited regarding performance compared directly against newer antibiotics currently available.

Research Gaps and Uncertainties

Research also was evaluated in patients who cannot take certain antibiotics, researching its use as an alternative option. However, a lack of recent, dedicated randomized trials for respiratory infections was observed in some studies. An overall review indicates that the core research largely uses historical study designs. Data for certain groups remain insufficient, and long-term effects are not fully established, particularly regarding durability of outcomes. The research results apply only to the populations studied.

Frequently Asked Questions (FAQ)

Common questions about Lincyn (Lincomycin) (FAQ)


Q: How quickly does Lincyn usually start working after the first administration?

Studies noted in the official product information indicate how quickly Lincyn works in the body. After a single intramuscular (IM) injection, the average peak levels of the drug in the bloodstream are generally observed within about 60 minutes. These levels are pharmacologically described as maintaining anti-bacterial activity for up to 20 hours against most susceptible organisms.


Q: How long does Lincyn generally stay in a person's system?

Pharmacological data describes how long Lincyn stays in the body. After a single dose, the drug is pharmacologically described as maintaining concentrations against susceptible bacteria for approximately 17 to 20 hours. Official documents note that the drug’s half-life is significantly prolonged in the presence of impaired liver or kidney function, which is described as leading to increased systemic exposure.


Q: How long after stopping Lincyn can antibiotic-associated diarrhea occur?

Official warnings state that the risk of serious bowel inflammation, known as Clostridium difficile-associated diarrhea (CDAD), can persist after treatment ends. Reports show this adverse effect can occur two months or even longer after a person has stopped taking the antibiotic.


Q: Does Lincyn pass into breast milk?

Regulatory information confirms the factual finding that Lincomycin is known to appear in human milk. Based on official guidance, the appearance of Lincomycin in human milk requires a discussion with a healthcare provider regarding the continuation of the drug or nursing.


Q: Why is Lincyn not typically used for newborns or infants?

Official warnings state that the injectable solution contains the preservative Benzyl Alcohol. This preservative is associated with specific risks of serious adverse effects in newborns and low-birth-weight infants. Use is also generally contraindicated for infants under one month of age.


Q: Does the Lincyn injection contain benzyl alcohol?

Yes, regulatory information confirms that the sterile solution for injection is known to contain Benzyl Alcohol. This is included as a preservative, and specific warnings are issued concerning the risk this component poses to newborns and low-birth-weight infants.


Q: What happens if Lincyn is given too quickly by IV infusion?

Regulatory documents explicitly warn against administration by rapid intravenous (IV) injection. Rapid administration has been associated with specific adverse effects, including a drop in blood pressure (hypotension) and, rarely, cardio-respiratory arrest.


Q: What research evidence exists for Lincyn's use in bone and joint infections?

The evidence base for bone and joint infections primarily draws from older records, including retrospective chart reviews and accumulated clinical experience that tracked the medicine’s ability to reach infected bone tissue. A review of the evidence indicates that comparative research against newer antibiotic options is often limited.


Q: Is Lincyn effective against Staphylococcus or Streptococcus bacteria?

Official documents indicate that Lincyn is authorized for use against susceptible strains of certain bacteria, including Streptococci, Pneumococci, and Staphylococci.


Q: Is it common to have ringing in the ears (tinnitus) while taking Lincyn?

Official safety data reports the perception of ringing, buzzing, or roaring inside the ear (tinnitus) as a potential side effect. However, the frequency of occurrence is often described as unknown or cannot be formally estimated from the available regulatory data.


Q: Does Lincyn cause yeast infections (thrush)?

Official warnings indicate that, like many antibiotics, the use of Lincyn may result in the overgrowth of organisms that are not susceptible to the drug. This includes the possibility of an overgrowth of yeasts.


Q: Does having a history of asthma or severe allergies affect eligibility for Lincyn?

Regulatory documents advise that Lincyn should be used with caution in patients with a history of asthma or significant allergies. This caution is due to the potential for allergic reactions, which may be heightened in these patient groups.


Q: Why is Lincyn often described as a 'reserved' or 'last resort' antibiotic?

Official regulatory documents explain that due to the established risk of severe, potentially fatal colitis, Lincomycin is officially reserved for serious infections. It is used when other less toxic antimicrobial agents are considered inappropriate for the specific patient or condition.


Q: Can Lincyn be used for minor infections like strep throat?

Regulatory guidelines reserve the use of Lincyn for serious infections. The drug is generally not indicated for nonbacterial infections, such as most upper respiratory tract infections.


Q: Is pain or swelling at the injection site a common occurrence?

Documented side effects for the injectable solution include reports of local reactions at the injection site. This can involve pain, redness, or swelling where the medication was administered.


Q: Can the use of Lincyn lead to overgrowth of non-susceptible organisms?

Official warnings indicate that the use of Lincyn may result in the overgrowth of organisms that are not susceptible to the drug. This is known as a superinfection, and official warnings mention the possibility of the overgrowth of yeasts.


Q: Does Lincyn cause confusion or difficulty concentrating?

Confusion has been reported as a potential adverse effect in some post-marketing data for Lincyn. However, the frequency of this occurrence is generally not formally established in all regulatory summaries.


Q: Does Lincyn cause a metallic taste in the mouth?

Altered taste sensation, including a metallic taste, is listed in some reports of side effects related to Lincyn. As with many antibiotics, such effects are noted, but the specific incidence is generally not detailed in regulatory summaries.

How should Lincyn (Lincomycin) be stored and disposed of?

Official Storage and Disposal Requirements

Storage and disposal of Lincyn (Lincomycin) must strictly follow the conditions specified in official regulatory labeling to maintain product stability.

Requirement Type Official Labeled Condition
Temperature Range Store at Controlled Room Temperature (mathbf20 C to mathbf25 C / mathbf68 F to mathbf77 F), with excursions permitted up to 40 C (DailyMed, FDA).
Protection Constraint The sterile injectable solution must not freeze (SmPC, VMD). Powder and granule forms require storage in a dry place (DailyMed).
Container Rule The container must be kept tightly closed after use to prevent moisture exposure (DailyMed).
In-Use Stability The contents of the multi-dose injectable vial must be discarded within 21 to 28 days after the initial opening (DailyMed, VMD).
Child Safety The product must be stored out of the sight and reach of children (DailyMed, HPRA).
Disposal Rule All unused product and waste material must be disposed of in accordance with local requirements for pharmaceutical waste handling (SmPC, HPRA).

This information defines how the medicine must be protected from environmental factors (heat, freezing, moisture) and sets a firm expiration period for opened injectable vials. Final disposal must be handled in compliance with established local regulations for pharmaceutical waste.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

Available in countries:

Equivalent of Lincyn (Lincomycin) found in:

A-Z Index: