lincomycin
Injection, Solution · Intramuscular, Intravenous, Subconjunctival
Uses
Lincomycin injection is indicated in the treatment of serious infections due to susceptible strains of streptococci, pneumococci, and staphylococci. Its use should be reserved for penicillin-allergic patients or other patients for whom, in the judgment of the physician, a penicillin is inappropriate. Because of the risk of CDAD, as described in the BOXED WARNING , before selecting lincomycin the physician should consider the nature of the infection and the suitability of other alternatives. Indicated surgical procedures should be performed in conjunction with antibacterial therapy. Lincomycin injection may be administered concomitantly with other antimicrobial agents when indicated. Lincomycin is not indicated in the treatment of minor bacterial infections or viral infections. To reduce the development of drug-resistant bacteria and maintain the effectiveness of lincomycin and other antibacterial drugs, lincomycin should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
Dosage and administration
If significant diarrhea occurs during therapy, lincomycin should be discontinued. (see BOXED WARNING ) INTRAMUSCULAR - Adults: Serious infections —600 mg (2 mL) intramuscularly every 24 hours. More severe infections —600 mg (2 mL) intramuscularly every 12 hours or more often. Pediatric patients over 1 month of age: Serious infections —one intramuscular injection of 10 mg/kg (5 mg/lb) every 24 hours. More severe infections — one intramuscular injection of 10 mg/kg (5 mg/lb) every 12 hours or more often. INTRAVENOUS - Adults: The intravenous dose will be determined by the severity of the infection. For serious infections doses of 600 mg of lincomycin (2 mL of lincomycin) to 1 gram are given every 8 to 12 hours. For more severe infections these doses may have to be increased. In life-threatening situations daily intravenous doses of as much as 8 grams have been given. Intravenous doses are given on the basis of 1 gram of lincomycin diluted in not less than 100 mL of appropriate solution (see PHYSICAL COMPATIBILITIES) and infused over a period of not less than one hour. Dose Vol. Diluent Time 600 mg 100 mL 1 hr 1 gram 100 mL 1 hr 2 grams 200 mL 2 hr 3 grams 300 mL 3 hr 4 grams 400 mL 4 hr These doses may be repeated as often as required to the limit of the maximum recommended daily dose of 8 grams of lincomycin. Pediatric patients over 1 month of age: 10 to 20 mg/kg/day (5 to 10 mg/lb/day) depending on the severity of the infection may be infused in divided doses as described above for adults. NOTE: Severe cardiopulmonary reactions have occurred when lincomycin has been given at greater than the recommended concentration and rate (see PRECAUTIONS ). SUBCONJUNCTIVAL INJECTION - 0.25 mL (75 mg) injected subconjunctivally will result in ocular fluid concentrations of antibacterial (lasting for at least 5 hours) sufficient for most susceptible pathogens. Patients with Renal Impairment When therapy with lincomycin is required in individuals with severe renal impairment, an appropriate dose is 25 to 30% of that recommended for patients with normally functioning kidneys (see PRECAUTIONS ). Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit.
Contraindications
Lincomycin injection is contraindicated in patients previously found to be hypersensitive to lincomycin or clindamycin.
Warnings
See BOXED WARNING . Clostridioides difficile associated diarrhea Clostridioides difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including Lincomycin, and may range in severity from mild diarrhea to fatal colitis. Treatment with antibacterial agents alters the normal flora of the colon leading to overgrowth of C. difficile . C. difficile produces toxins A and B which contribute to the development of CDAD. Hypertoxin producing strains of C. difficile cause increased morbidity and mortality, as these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibacterial use. Careful medical history is necessary since CDAD has been reported to occur over two months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibacterial use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibacterial treatment of C. difficile , and surgical evaluation should be instituted as clinically indicated. Hypersensitivity Severe hypersensitivity reactions, including anaphylactic reactions and severe cutaneous adverse reactions (SCAR) such as Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), acute generalized exanthematous pustulosis (AGEP), and erythema multiforme (EM) have been reported in patients receiving lincomycin therapy. If an anaphylactic reaction or severe skin reaction occurs, lincomycin should be discontinued and appropriate therapy should be initiated. (see ADVERSE REACTIONS ) Benzyl Alcohol Toxicity in Pediatric Patients (Gasping Syndrome) Lincomycin injection contains benzyl alcohol as a preservative. The preservative benzyl alcohol has been associated with serious adverse events, including the “gasping syndrome”, and death in pediatric patients. Although normal therapeutic doses of this product ordinarily deliver amounts of benzyl alcohol that are substantially lower than those reported in association with the “gasping syndrome”, the minimum amount of benzyl alcohol at which toxicity may occur is not known. The risk of benzyl alcohol toxicity depends on the quantity administered and the liver and kidneys’ capacity to detoxify the chemical. Premature and low-birth weight infants may be more likely to develop toxicity. Inadequate for Use in Meningitis Although lincomycin appears to diffuse into cerebrospinal fluid, concentrations of lincomycin in the CSF may be inadequate for the treatment of meningitis.
Precautions
General Review of experience to date suggests that a subgroup of older patients with associated severe illness may tolerate diarrhea less well. When lincomycin is indicated in these patients, they should be carefully monitored for change in bowel frequency. Lincomycin should be prescribed with caution in individuals with a history of gastrointestinal disease, particularly colitis. Lincomycin should be used with caution in patients with a history of asthma or significant allergies. Certain infections may require incision and drainage or other indicated surgical procedures in addition to antibacterial therapy. The use of lincomycin may result in overgrowth of nonsusceptible organisms, particularly yeasts. Should superinfections occur, appropriate measures should be taken as indicated by the clinical situation. When patients with pre-existing Candida infections require therapy with lincomycin, concomitant antifungal treatment should be given. The serum half-life of lincomycin may be prolonged in patients with severe renal impairment compared to patients with normal renal function. In patients with hepatic impairment, serum half-life may be twofold longer than in patients with normal hepatic function. Patients with severe renal impairment and/or hepatic impairment should be dosed with caution and serum lincomycin concentrations monitored during high-dose therapy. (see DOSAGE AND ADMINISTRATION ) Lincomycin MUST be diluted prior to intravenous infusion. For intravenous infusion, infuse over at least 60 minutes as directed in the DOSAGE AND ADMINISTRATION Section. Do NOT administer as an intravenous bolus. Severe cardiopulmonary reactions have occurred at greater than the recommended concentration and rate. Prescribing lincomycin in the absence of a proven or strongly suspected bacterial infection or a prophylactic indication is unlikely to provide benefit to the patient and increases the risk of the development of drug-resistant bacteria. Information for Patients Patients should be counseled that antibacterial drugs including lincomycin should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When lincomycin is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by lincomycin or other antibacterial drugs in the future. Diarrhea is a common problem caused by antibacterial which usually ends when the antibacterial is discontinued. Sometimes after starting treatment with an antibacterial, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after taking the last dose of the antibacterial. If this occurs, patients should contact their physician as soon as possible. Laboratory Tests During prolonged therapy with lincomycin, periodic liver and kidney function tests and blood counts should be performed. Drug Interactions Lincomycin has been shown to have neuromuscular blocking properties that may enhance the action of other neuromuscular blocking agents; therefore, it should be used with caution in patients receiving such agents. Carcinogenesis, Mutagenesis, Impairment of Fertility The carcinogenic potential of lincomycin has not been evaluated. Lincomycin was not found to be mutagenic in the Ames Salmonella reversion assay or the V79 Chinese hamster lung cells at the HGPRT locus. It did not induce DNA strand breaks in V79 Chinese hamster lung cells as measured by alkaline elution or chromosomal abnormalities in cultured human lymphocytes. In vivo , lincomycin was negative in both the rat and mouse micronucleus assays and it did not induce sex-linked recessive lethal mutations in the offspring of male Drosophila. However, lincomycin did cause unscheduled DNA syntheses in freshly isolated rat hepatocytes. Impairment of fertility was not observed in male or female rats given oral 300 mg/kg doses of lincomycin (0.36 times the highest recommended human dose based on mg/m 2 ). Pregnancy There are no adequate and well-controlled studies in pregnant women. Lincomycin Sterile Solution contains benzyl alcohol as a preservative. Benzyl alcohol can cross the placenta. See WARNINGS . Lincomycin should be used during pregnancy only if clearly needed. Teratogenic Effects: In a study with 60 pregnant women, cord serum concentrations were approximately 25% of the maternal serum concentrations, indicating that lincomycin crosses the placenta, and no substantial accumulation occurred in the amniotic fluid. Experience with 345 obstetrical patients receiving lincomycin revealed no ill effects related to pregnancy. There was no evidence of teratogenicity when lincomycin was administered in diet to pregnant Sprague Dawley rats during the period of major organogenesis at doses up to 5000 mg/kg (approximately 6 times the maximum recommended human dose [MRHD], respectively, based on body surface area comparison). Nonteratogenic Effects: Reproduction studies performed in rats administered oral lincomycin in diet for 2 weeks prior to mating, throughout pregnancy and lactation, revealed no adverse effects on survival of offspring from birth to weaning at doses up to 1000 mg/kg (1.2 times the MRHD based on body surface area comparison) up to 2 generations. Nursing Mothers Lincomycin has been reported to appear in human milk in concentrations of 0.5 to 2.4 mcg/mL. Because of the potential for serious adverse reactions in nursing infants from lincomycin, a decision should be made whether to discontinue nursing, or to discontinue the drug, taking into account the importance of the drug to the mother.
Side effects
The following adverse reactions have been reported with the use of lincomycin. Gastrointestinal disorders Diarrhea, nausea, vomiting, glossitis, stomatitis, abdominal pain, abdominal discomfort † , anal pruritus Skin and subcutaneous tissue disorders Toxic epidermal necrolysis, Stevens-Johnson syndrome, acute generalized exanthematous pustulosis, dermatitis bullous, dermatitis exfoliative, erythema multiforme (see WARNINGS ), rash, urticaria, pruritus Infections and infestations Vaginal infection, pseudomembranous colitis, Clostridioides difficile colitis (see WARNINGS ) Blood and lymphatic system disorders Pancytopenia, agranulocytosis, aplastic anemia, leukopenia, neutropenia, thrombocytopenic purpura Immune system disorders Anaphylactic reaction (see WARNINGS ), angioedema, serum sickness Hepatobiliary disorders Jaundice, liver function test abnormal, transaminases increased Renal and urinary disorders Renal impairment, oliguria, proteinuria, azotemia Cardiac disorders Cardio-respiratory arrest (see DOSAGE AND ADMINISTRATION ) Vascular disorders Hypotension (see DOSAGE AND ADMINISTRATION ), thrombophlebitis † Ear and labyrinth disorders Vertigo, tinnitus Neurologic disorders Headache, dizziness, somnolence General disorders and administration site conditions Injection site abscess sterile ‡ , injection site induration ‡ , injection site pain ‡ , injection site irritation ‡ †Event has been reported with intravenous injection. ‡Reported with intramuscular injection. To report SUSPECTED ADVERSE REACTIONS, contact Micro Labs USA, Inc. at 1-855-839-8195 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Drug interactions
Drug Interactions Lincomycin has been shown to have neuromuscular blocking properties that may enhance the action of other neuromuscular blocking agents; therefore, it should be used with caution in patients receiving such agents.
Pregnancy
Pregnancy There are no adequate and well-controlled studies in pregnant women. Lincomycin Sterile Solution contains benzyl alcohol as a preservative. Benzyl alcohol can cross the placenta. See WARNINGS . Lincomycin should be used during pregnancy only if clearly needed. Teratogenic Effects: In a study with 60 pregnant women, cord serum concentrations were approximately 25% of the maternal serum concentrations, indicating that lincomycin crosses the placenta, and no substantial accumulation occurred in the amniotic fluid. Experience with 345 obstetrical patients receiving lincomycin revealed no ill effects related to pregnancy. There was no evidence of teratogenicity when lincomycin was administered in diet to pregnant Sprague Dawley rats during the period of major organogenesis at doses up to 5000 mg/kg (approximately 6 times the maximum recommended human dose [MRHD], respectively, based on body surface area comparison). Nonteratogenic Effects: Reproduction studies performed in rats administered oral lincomycin in diet for 2 weeks prior to mating, throughout pregnancy and lactation, revealed no adverse effects on survival of offspring from birth to weaning at doses up to 1000 mg/kg (1.2 times the MRHD based on body surface area comparison) up to 2 generations.
Pediatric use
Pediatric Use Lincomycin injection contains benzyl alcohol as a preservative. Benzyl alcohol has been associated with a fatal “Gasping Syndrome” in premature infants. See WARNINGS . Safety and effectiveness in pediatric patients below the age of one month have not been established. (see DOSAGE AND ADMINISTRATION )
Overdosage
Serum concentrations of lincomycin are not appreciably affected by hemodialysis and peritoneal dialysis.
Description
Lincomycin injection, USP is a sterile solution containing lincomycin hydrochloride which is the monohydrated salt of lincomycin, a lincosamide antibacterial produced by the growth of a member of the lincolnensis group of Streptomyces lincolnensis (Fam. Streptomycetaceae ). The chemical name for lincomycin hydrochloride is Methyl 6,8-dideoxy-6-(1-methyl-trans-4-propyl-L2-pyrolidinecarboxamido)-1-thio-D-erythro-α-D-galacto-octopyranoside monohydrochloride monohydrate. The molecular formula of lincomycin hydrochloride is C 18 H 34 N 2 O 6 S.HCl.H 2 O and the molecular weight is 461.01. The structural formula is represented below: Lincomycin hydrochloride is a white or practically white, crystalline powder. Its solutions are acid and are dextrorotatory. Lincomycin hydrochloride is freely soluble in water; soluble in dimethylformamide and insoluble in acetone. Lincomycin Injection, USP contains lincomycin hydrochloride in a sterile, clear, colorless to slightly yellow solution with benzyl alcohol used as a preservative 9.45 mg/mL, and water for injection. Lincomycin injection, USP is a sterile solution for intramuscular and intravenous use. Lincomycin injection, USP is supplied in 2 mL and 10 mL multiple-dose vials containing 300 mg/mL of lincomycin (equivalent to 340 mg/mL of lincomycin hydrochloride, USP). strc
How supplied
Lincomycin Injection, USP is a sterile, clear, colorless to slightly yellow solution, having a slight odor. Free from any visible particles available in the following strength and package sizes: Unit of Sale Concentration NDC 42571-374-75 2 mL mono carton multiple-dose vial 600 mg/2 mL (300 mg/mL) NDC 42571-374-91 10 x 2 mL carton multiple-dose vial NDC 42571-374-88 10 mL mono carton multiple-dose vial 3,000 mg/10 mL (300 mg/mL) NDC 42571-374-89 10 x 10 mL carton multiple-dose vial Each mL of Lincomycin Injection, USP contains 300 mg lincomycin (equivalent to 340 mg lincomycin hydrochloride, USP); also benzyl alcohol, 9.45 mg added as preservative. Store at controlled room temperature 20° to 25°C (68° to 77°F) [see USP].
Patient information
Information for Patients Patients should be counseled that antibacterial drugs including lincomycin should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When lincomycin is prescribed to treat a bacterial infection, patients should be told that although it is common to feel better early in the course of therapy, the medication should be taken exactly as directed. Skipping doses or not completing the full course of therapy may (1) decrease the effectiveness of the immediate treatment and (2) increase the likelihood that bacteria will develop resistance and will not be treatable by lincomycin or other antibacterial drugs in the future. Diarrhea is a common problem caused by antibacterial which usually ends when the antibacterial is discontinued. Sometimes after starting treatment with an antibacterial, patients can develop watery and bloody stools (with or without stomach cramps and fever) even as late as two or more months after taking the last dose of the antibacterial. If this occurs, patients should contact their physician as soon as possible.
Label text from the FDA structured product label by Micro Labs Limited (revised Aug 4, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Lincomycin Hydrochloride in 8 products
- Lincomycin in 2 products
lincomycin NDC products (10)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 72485-114 | Lincomycin Hydrochloride 600 mg/2mL Injection, Solution | Armas Pharmaceuticals Inc. | ANDA |
| 72485-115 | Lincomycin Hydrochloride 3000 mg/10mL Injection, Solution | Armas Pharmaceuticals Inc. | ANDA |
| 0404-9901 | Lincomycin Hydrochloride 300 mg/mL Injection, Solution | Henry Schein, Inc. | ANDA |
| 42571-374 | Lincomycin Hydrochloride 300 mg/mL Injection, Solution | Micro Labs Limited | ANDA |
| 0121-1035 | Lincomycin Hydrochloride 3000 mg/10mL Injection | PAI Holdings, LLC dba PAI Pharma | ANDA |
| 25021-193 | Lincomycin Hydrochloride 300 mg/mL Injection, Solution | Sagent Pharmaceuticals | ANDA |
| 70436-034 | Lincomycin 300 mg/mL Injection, Solution | Slate Run Pharmaceuticals, LLC | ANDA |
| 70436-035 | Lincomycin 300 mg/mL Injection, Solution | Slate Run Pharmaceuticals, LLC | ANDA |
| 39822-0350 | Lincomycin Hydrochloride 300 mg/mL Injection, Solution | XGen Pharmaceuticals DJB, Inc. | ANDA |
| 39822-0353 | Lincomycin Hydrochloride 300 mg/mL Injection, Solution | XGen Pharmaceuticals DJB, Inc. | ANDA |
Frequently asked questions
What is lincomycin used for?
Lincomycin injection is indicated in the treatment of serious infections due to susceptible strains of streptococci, pneumococci, and staphylococci. Its use should be reserved for penicillin-allergic patients or other patients for whom, in the judgment of the physician, a penicillin is inappropriate. Because of the risk of CDAD, as described in the BOXED WARNING , before selecting lincomycin the…
What are the side effects of lincomycin?
The following adverse reactions have been reported with the use of lincomycin. Gastrointestinal disorders Diarrhea, nausea, vomiting, glossitis, stomatitis, abdominal pain, abdominal discomfort † , anal pruritus Skin and subcutaneous tissue disorders Toxic epidermal necrolysis, Stevens-Johnson syndrome, acute generalized exanthematous pustulosis, dermatitis bullous, dermatitis exfoliative,… See the full label for the complete list.
Who makes lincomycin?
lincomycin is listed by 7 labelers in the FDA NDC directory, including Armas Pharmaceuticals Inc., Henry Schein, Inc., Micro Labs Limited, PAI Holdings, LLC dba PAI Pharma.