Brand Name
Primaxin
Generic Name
Imipenem
View Brand Information FDA approval date: November 26, 1985
Classification: Penem Antibacterial
Form: Injection
What is Primaxin (Imipenem)?
Imipenem and Cilastatin for Injection, USP for intravenous use is a combination of imipenem, a penem antibacterial, and cilastatin, a renal dehydropeptidase inhibitor, indicated for the treatment of the following serious infections caused by designated susceptible bacteria: Lower respiratory tract infections.
Approved To Treat
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Brand Information
PRIMAXIN (imipenem and cilastatin sodium)
1INDICATIONS AND USAGE
1.1Lower Respiratory Tract Infections
PRIMAXIN for intravenous use is indicated for the treatment of lower respiratory tract infections caused by susceptible strains of Staphylococcus aureus (penicillinase-producing isolates), Acinetobacter species, Enterobacter species, Escherichia coli, Haemophilus influenzae, Haemophilus parainfluenzae, Klebsiella species, Serratia marcescens.
1.2Urinary Tract Infections (complicated and uncomplicated)
PRIMAXIN is indicated for the treatment of urinary tract infections (complicated and uncomplicated) caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Enterobacter species, Escherichia coli, Klebsiella species, Morganella morganii, Proteus vulgaris, Providencia rettgeri, Pseudomonas aeruginosa.
1.3Intra-Abdominal Infections
PRIMAXIN is indicated for the treatment of intra-abdominal infections caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Staphylococcus epidermidis, Citrobacter species, Enterobacter species, Escherichia coli, Klebsiella species, Morganella morganii, Proteus species, Pseudomonas aeruginosa, Bifidobacterium species, Clostridium species, Eubacterium species, Peptococcus species, Peptostreptococcus species, Propionibacterium species, Bacteroides species including B. fragilis, Fusobacterium species.
1.4Gynecologic Infections
PRIMAXIN is indicated for the treatment of gynecologic infections caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Staphylococcus epidermidis, Streptococcus agalactiae (Group B streptococci), Enterobacter species, Escherichia coli, Gardnerella vaginalis, Klebsiella species, Proteus species, Bifidobacterium species, Peptococcus species, Peptostreptococcus species, Propionibacterium species, Bacteroides species including B. fragilis.
1.5Bacterial Septicemia
PRIMAXIN is indicated for the treatment of bacterial septicemia caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Enterobacter species, Escherichia coli, Klebsiella species, Pseudomonas aeruginosa, Serratia species, Bacteroides species including B. fragilis.
1.6Bone and Joint Infections
PRIMAXIN is indicated for the treatment of bone and joint infections caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Staphylococcus epidermidis, Enterobacter species, Pseudomonas aeruginosa.
1.7Skin and Skin Structure Infections
PRIMAXIN is indicated for the treatment of skin and skin structure infections caused by susceptible strains of Enterococcus faecalis, Staphylococcus aureus (penicillinase-producing isolates), Staphylococcus epidermidis, Acinetobacter species, Citrobacter species, Enterobacter species, Escherichia coli, Klebsiella species, Morganella morganii, Proteus vulgaris, Providencia rettgeri, Pseudomonas aeruginosa, Serratia species, Peptococcus species, Peptostreptococcus species, Bacteroides species including B. fragilis, Fusobacterium species.
1.8Endocarditis
PRIMAXIN is indicated for the treatment of endocarditis caused by susceptible strains of Staphylococcus aureus (penicillinase-producing isolates).
1.9Limitations of Use
- PRIMAXIN is not indicated in patients with meningitis because safety and efficacy have not been established.
- PRIMAXIN is not recommended in pediatric patients with CNS infections because of the risk of seizures [see Dosage and Administration (2.2), Warnings and Precautions (5.2), and Use in Specific Populations (8.4)].
- PRIMAXIN is not recommended in pediatric patients less than 30 kg with impaired renal function, as no data are available [see Use in Specific Populations (8.4), and Dosage and Administration (2.2)].
- Periodic assessment of organ system functions, including renal, hepatic and hematopoietic, is advisable during prolonged therapy.
1.10Usage
To reduce the development of drug-resistant bacteria and maintain the effectiveness of PRIMAXIN and other antibacterial drugs, PRIMAXIN should be used only to treat 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.
2DOSAGE AND ADMINISTRATION
2.1Dosage in Adults
For Intravenous Injection Only
- The dosage of PRIMAXIN in adult patients should be based on suspected or confirmed pathogen susceptibility as shown in Table 1 below. The dosage recommendations for PRIMAXIN represent the quantity of imipenem to be administered. An equivalent amount of cilastatin is also present in the solution.
- These doses should be used for patients with creatinine clearance of greater than or equal to 90 mL/min. A reduction in dose must be made for patients with creatinine clearance less than 90 mL/min as shown in Table 3 [see Dosage and Administration (2.3)].
- Recommend that the maximum total daily dosage not exceed 4 g/day.
- Administer 500 mg by intravenous infusion over 20 to 30 minutes.
- Administer 1000 mg by intravenous infusion over 40 to 60 minutes.
- In patients who develop nausea during the infusion, the rate of infusion may be slowed.
2.2Dosage in Pediatric Patients
PRIMAXIN is not recommended in pediatric patients with CNS infections because of the risk of seizures [see Use in Specific Populations (8.4)].
PRIMAXIN is not recommended in pediatric patients <30 kg with renal impairment, as no data are available [see Use in Specific Populations (8.4)].
Based on studies in adults, the maximum total daily dose in pediatric patients should not exceed 4 g/day [see Dosage and Administration (2.1)].
The recommended dosage for pediatric patients with non-CNS infections is shown in Table 2 below:
2.3Dosage in Adult Patients with Renal Impairment
Patients with creatinine clearance less than 90 mL/min require dosage reduction of PRIMAXIN as indicated in Table 3. The serum creatinine should represent a steady state of renal function. Use the Cockcroft-Gault method described below to calculate the creatinine clearance:
In patients with creatinine clearances of less than 30 to greater than or equal to 15 mL/min, there may be an increased risk of seizures [see Warnings and Precautions (5.2) and Use in Specific Populations (8.6)]. Patients with creatinine clearance less than 15 mL/min should not receive PRIMAXIN unless hemodialysis is instituted within 48 hours. There is inadequate information to recommend usage of PRIMAXIN for patients undergoing peritoneal dialysis.
2.4Dosage in Hemodialysis Patients
When treating patients with creatinine clearances of less than 15 mL/min who are undergoing hemodialysis, use the dosage recommendations for patients with creatinine clearances of less than 30 to greater than or equal to 15 mL/min in Table 3 above [see Dosage and Administration (2.3)]. Both imipenem and cilastatin are cleared from the circulation during hemodialysis. The patient should receive PRIMAXIN after hemodialysis and at intervals timed from the end of that hemodialysis session. Dialysis patients, especially those with background CNS disease, should be carefully monitored; for patients on hemodialysis, PRIMAXIN is recommended only when the benefit outweighs the potential risk of seizures [see Warnings and Precautions (5.2)].
2.5Reconstitution and Preparation of PRIMAXIN Solution for Intravenous Administration
2.6Storage of Reconstituted Solutions
2.7Incompatibility and Compatibility of PRIMAXIN with other Antibacterial Drugs
- Do not mix PRIMAXIN with, or physically add to, other antibacterial drugs.
- PRIMAXIN may be administered concomitantly with other antibacterial drugs, such as aminoglycosides.
3DOSAGE FORMS AND STRENGTHS
For Injection PRIMAXIN is a sterile powder mixture for reconstitution in single-dose containers including vials containing:
- 500 mg imipenem (anhydrous equivalent) and 500 mg cilastatin (free acid equivalent)
4CONTRAINDICATIONS
PRIMAXIN is contraindicated in patients who have shown hypersensitivity to any component of this product.
5WARNINGS AND PRECAUTIONS
5.1Hypersensitivity Reactions
Serious and occasionally fatal hypersensitivity (anaphylactic) reactions have been reported in patients receiving therapy with beta-lactams. These reactions are more likely to occur in individuals with a history of sensitivity to multiple allergens. There have been reports of individuals with a history of penicillin hypersensitivity who have experienced severe hypersensitivity reactions when treated with another beta-lactam. Before initiating therapy with PRIMAXIN, careful inquiry should be made concerning previous hypersensitivity reactions to penicillins, cephalosporins, other beta-lactams and other allergens. If an allergic reaction to PRIMAXIN occurs, discontinue the drug immediately. Serious anaphylactic reactions require immediate emergency treatment as clinically indicated.
5.2Seizure Potential
Seizures and other CNS adverse experiences, such as confusional states and myoclonic activity, have been reported during treatment with PRIMAXIN, especially when recommended dosages were exceeded [see Adverse Reactions (6.1, 6.2)]. These experiences have occurred most commonly in patients with CNS disorders (e.g., brain lesions or history of seizures) and/or compromised renal function [see Use in Specific Populations (8.6)]. However, there have been reports of CNS adverse experiences in patients who had no recognized or documented underlying CNS disorder or compromised renal function.
Anticonvulsant therapy should be continued in patients with known seizure disorders. If focal tremors, myoclonus, or seizures occur, patients should be evaluated neurologically, placed on anticonvulsant therapy if not already instituted, and the dosage of PRIMAXIN re-examined to determine whether it should be decreased, or the antibacterial drug discontinued.
5.3Increased Seizure Potential Due to Interaction with Valproic Acid
Case reports in the literature have shown that co-administration of carbapenems, including PRIMAXIN, to patients receiving valproic acid or divalproex sodium results in a reduction in valproic acid concentrations. The valproic acid concentrations may drop below the therapeutic range as a result of this interaction, therefore increasing the risk of breakthrough seizures. Increasing the dose of valproic acid or divalproex sodium may not be sufficient to overcome this interaction. The concomitant use of PRIMAXIN and valproic acid/divalproex sodium is generally not recommended. Antibacterials other than carbapenems should be considered to treat infections in patients whose seizures are well controlled on valproic acid or divalproex sodium. If administration of PRIMAXIN is necessary, supplemental anti-convulsant therapy should be considered [see Drug Interactions (7.3)]. Close adherence to the recommended dosage and dosage schedules is urged, especially in patients with known factors that predispose to convulsive activity.
5.4Clostridioides difficile-Associated Diarrhea (CDAD)
Clostridioides difficile associated diarrhea (CDAD) has been reported with use of nearly all antibacterial agents, including PRIMAXIN, 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 drug 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 drug use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibacterial drug treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated.
5.5Development of Drug-Resistant Bacteria
As with other antibacterial drugs, prolonged use of PRIMAXIN may result in overgrowth of nonsusceptible organisms. Repeated evaluation of the patient's condition is essential. If superinfection occurs during therapy, appropriate measures should be taken.
Prescribing PRIMAXIN 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.
6ADVERSE REACTIONS
The following serious adverse reactions are described in greater detail in the Warnings and Precautions section.
- Hypersensitivity Reactions [see Warnings and Precautions (5.1)]
- Seizure Potential [see Warnings and Precautions (5.2)]
- Increased Seizure Potential Due to Interaction with Valproic Acid [see Warnings and Precautions (5.3)]
- Clostridioides difficile-Associated Diarrhea (CDAD) [see Warnings and Precautions (5.4)]
- Development of Drug-Resistant Bacteria [see Warnings and Precautions (5.5)]
6.1Clinical Trials Experience
Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice.
6.2Postmarketing Experience
The following adverse reactions have been identified during post-approval use of PRIMAXIN. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
7DRUG INTERACTIONS
7.1Ganciclovir
Generalized seizures have been reported in patients who received ganciclovir and PRIMAXIN. These drugs should not be used concomitantly with PRIMAXIN unless the potential benefits outweigh the risks.
7.2Probenecid
Concomitant administration of PRIMAXIN and probenecid results in increases in the plasma level and half-life of imipenem. Therefore, it is not recommended that probenecid be given concomitantly with PRIMAXIN.
7.3Valproic Acid
Case reports in the literature have shown that co-administration of carbapenems, including PRIMAXIN, to patients receiving valproic acid or divalproex sodium results in a reduction in valproic acid concentrations. The valproic acid concentrations may drop below the therapeutic range as a result of this interaction, therefore increasing the risk of breakthrough seizures. Although the mechanism of this interaction is unknown, data from in vitro and animal studies suggest that carbapenems may inhibit the hydrolysis of valproic acid's glucuronide metabolite (VPA-g) back to valproic acid, thus decreasing the serum concentrations of valproic acid [see Warnings and Precautions (5.3)]. The concomitant use of PRIMAXIN and valproic acid/divalproex sodium is generally not recommended. Antibacterials other than carbapenems should be considered to treat infections in patients whose seizures are well-controlled on valproic acid or divalproex sodium.
8USE IN SPECIFIC POPULATIONS
8.1Pregnancy
8.2Lactation
8.3Pediatric Use
Use of PRIMAXIN in pediatric patients is supported by evidence from adequate and well-controlled trials of PRIMAXIN in adults and clinical studies in pediatric patients [see Dosage and Administration (2.2) and Clinical Pharmacology (12.3)].
PRIMAXIN is not recommended in pediatric patients with CNS infections because of the risk of seizures.
PRIMAXIN is not recommended in pediatric patients less than 30 kg with renal impairment, as no data are available.
8.4Geriatric Use
Of the approximately 3600 subjects ≥18 years of age in clinical studies of PRIMAXIN, including postmarketing studies, approximately 2800 received PRIMAXIN. Of the subjects who received PRIMAXIN, data are available on approximately 800 subjects who were 65 and over, including approximately 300 subjects who were 75 and over. No overall differences in safety or effectiveness were observed between these subjects and younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out.
This drug is known to be substantially excreted by the kidney, and the risk of toxic reactions to this drug may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection, and it may be useful to monitor renal function.
No dosage adjustment is required based on age [see Clinical Pharmacology (12.3)]. Dosage adjustment in the case of renal impairment is necessary [see Dosage and Administration (2.3)].
8.5Renal Impairment
Dosage adjustment is necessary in patients with renal impairment [see Dosage and Administration (2.3)]. Adult patients with creatinine clearances of less than or equal to 30 mL/min, whether or not undergoing hemodialysis, had a higher risk of seizure activity than those without impairment of renal function [see Warnings and Precautions (5.2)]. Therefore, close adherence to the dosing guidelines and regular monitoring of creatinine clearance for these patients is recommended.
9OVERDOSAGE
In the case of overdosage, discontinue PRIMAXIN, treat symptomatically, and institute supportive measures as required. PRIMAXIN is hemodialyzable.
10DESCRIPTION
PRIMAXIN (imipenem and cilastatin) for Injection is a sterile formulation of imipenem, a penem antibacterial, and cilastatin, a renal dehydropeptidase inhibitor with sodium bicarbonate added as a buffer. PRIMAXIN is an antibacterial drug for intravenous administration.
Imipenem (N-formimidoylthienamycin monohydrate) is a crystalline derivative of thienamycin, which is produced by Streptomyces cattleya. Its chemical name is (5R,6S)-3-[[2-(formimidoylamino)ethyl]thio]-6-[(R)-1-hydroxyethyl]-7-oxo-1-azabicyclo[3.2.0]hept-2-ene-2-carboxylic acid monohydrate. It is an off-white, nonhygroscopic crystalline compound with a molecular weight of 317.37. It is sparingly soluble in water and slightly soluble in methanol. Its empirical formula is C12H17N3O4S∙H2O, and its structural formula is:
Cilastatin sodium is the sodium salt of a derivatized heptenoic acid. Its chemical name is sodium (Z)-7[[(R)-2-amino-2-carboxyethyl]thio]-2-[(S)-2,2-dimethylcyclopropanecarboxamido]-2-heptenoate. It is an off-white to yellowish-white, hygroscopic, amorphous compound with a molecular weight of 380.43. It is very soluble in water and in methanol. Its empirical formula is C16H25N2O5SNa, and its structural formula is:
Each single-dose vial of PRIMAXIN contains 500 mg imipenem (equivalent to 530 mg imipenem monohydrate), 500 mg cilastatin (equivalent to 531 mg cilastatin sodium), and 20 mg sodium bicarbonate (used as a buffer). PRIMAXIN is buffered to provide solutions in the pH range of 6.5 to 8.5. There is no significant change in pH when solutions are prepared and used as directed [see How Supplied/Storage and Handling (16.1)]. PRIMAXIN 500 contains 37.5 mg of sodium (1.6 mEq). Solutions of PRIMAXIN range from colorless to yellow. Variations of color within this range do not affect the potency of the product.
11CLINICAL PHARMACOLOGY
11.1Mechanism of Action
PRIMAXIN is a combination of imipenem and cilastatin. Imipenem is a penem antibacterial drug [see Microbiology (12.4)]. Cilastatin is a renal dehydropeptidase inhibitor that limits the renal metabolism of imipenem.
11.2Pharmacokinetics
Intravenous infusion of PRIMAXIN over 20 minutes results in peak plasma levels of imipenem antimicrobial activity that range from 21 to 58 mcg/mL for the 500 mg dose, and from 41 to 83 mcg/mL for the 1000 mg dose. At these doses, plasma levels of imipenem antimicrobial activity decline to below 1 mcg/mL or less in 4 to 6 hours. Peak plasma levels of cilastatin following a 20-minute intravenous infusion of PRIMAXIN range from 31 to 49 mcg/mL for the 500 mg dose, and from 56 to 88 mcg/mL for the 1000 mg dose.
11.3Microbiology
12NONCLINICAL TOXICOLOGY
12.1Carcinogenesis, Mutagenesis, Impairment of Fertility
Long term studies in animals have not been performed to evaluate carcinogenic potential of imipenem/cilastatin. A variety of bacterial and mammalian tests were performed to evaluate genetic toxicity. The tests used were: V79 mammalian cell mutagenesis assay (cilastatin sodium alone and imipenem alone), Ames test (cilastatin sodium alone and imipenem alone), unscheduled DNA synthesis assay (imipenem/cilastatin sodium) and in vivo mouse cytogenetics test (imipenem/cilastatin sodium). None of these tests showed any evidence of genetic alterations.
Impairment of fertility or reproductive performance was not observed in male and female rats given imipenem/cilastatin at intravenous doses up to 80 mg/kg/day and at a subcutaneous dose of 320 mg/kg/day. In rats, a dose of 320 mg/kg/day was approximately equal to the highest recommended human dose based on body surface area.
13HOW SUPPLIED/STORAGE AND HANDLING
13.1How Supplied
PRIMAXIN is supplied as a sterile powder mixture in single dose containers including vials containing imipenem (anhydrous equivalent) and cilastatin (free acid equivalent) as follows:
13.2Storage and Handling
14PATIENT COUNSELING INFORMATION
- Advise patients that allergic reactions, including serious allergic reactions, could occur and that serious reactions require immediate treatment. They should report any previous hypersensitivity reactions to PRIMAXIN, other carbapenems, beta-lactams or other allergens.
- Counsel patients that antibacterial drugs including PRIMAXIN should only be used to treat bacterial infections. They do not treat viral infections (e.g., the common cold). When PRIMAXIN 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 PRIMAXIN or other antibacterial drugs in the future.
- Counsel patients to inform their physician:
- if they have central nervous system disorders such as stroke or history of seizures. Seizures have been reported during treatment with PRIMAXIN and with closely related antibacterial drugs.
- if they are taking valproic acid or sodium valproate. Valproic acid concentrations in the blood may drop below the therapeutic range upon co-administration with PRIMAXIN. If treatment with PRIMAXIN is necessary and continued, alternative or supplemental anti-convulsant medication to prevent and/or treat seizures may be needed.
- Advise patients that diarrhea is a common problem caused by antibacterial drugs and usually resolves when the drug is discontinued. Sometimes, frequent watery or bloody diarrhea may occur and may be a sign of a more serious intestinal infection. If severe watery or bloody diarrhea develops, patients should contact their healthcare provider.
15PRINCIPAL DISPLAY PANEL 250 mg Vial Label
NDC 0006-3514-58
250
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
IMIPENEM 250 mg (Anhydrous Equivalent)
CILASTATIN EQUIVALENT 250 mg
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY
NOT FOR DIRECT INFUSION
CILASTATIN EQUIVALENT 250 mg
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY
NOT FOR DIRECT INFUSION
Rx only
250 mg
250 mg
Merck Sharp & Dohme Corp., a subsidiary of
MERCK & CO., INC., Whitehouse Station, NJ 08889, USA
MERCK & CO., INC., Whitehouse Station, NJ 08889, USA
3514
16PRINCIPAL DISPLAY PANEL 500 mg Vial Label
NDC 0006-3516-59
500
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
Each vial contains 500 mg imipenem (equivalent to 530 mg
imipenem monohydrate), 500 mg cilastatin (equivalent to 531 mg
cilastatin sodium), and 20 mg sodium bicarbonate (used as a buffer).
imipenem monohydrate), 500 mg cilastatin (equivalent to 531 mg
cilastatin sodium), and 20 mg sodium bicarbonate (used as a buffer).
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY
NOT FOR DIRECT INFUSION
NOT FOR DIRECT INFUSION
Rx only
500 mg
500 mg
17PRINCIPAL DISPLAY PANEL - 500 mg Vial Package
1 PACKAGE (25 VIALS)
NDC 0006-3516-59
NDC 0006-3516-59
500
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
Not to be divided.
Each vial contains 500 mg imipenem (equivalent to 530 mg imipenem monohydrate), 500 mg cilastatin
(equivalent to 531 mg cilastatin sodium), and 20 mg sodium bicarbonate (used as a buffer).
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY / NOT FOR DIRECT INFUSION
For the Preparation of Intravenous Solutions and USUAL ADULT DOSAGE: See
accompanying circular. Color changes in solution from colorless to
yellow do not affect potency. Store dry material below 25ºC.
(equivalent to 531 mg cilastatin sodium), and 20 mg sodium bicarbonate (used as a buffer).
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY / NOT FOR DIRECT INFUSION
For the Preparation of Intravenous Solutions and USUAL ADULT DOSAGE: See
accompanying circular. Color changes in solution from colorless to
yellow do not affect potency. Store dry material below 25ºC.
Rx only
Merck Sharp & Dohme LLC
Rahway, NJ 07065, USA
Rahway, NJ 07065, USA
Copyright © 2022 Merck & Co., Inc.
Rahway, NJ, USA, and its affiliates.
All rights reserved.
Rahway, NJ, USA, and its affiliates.
All rights reserved.
18PRINCIPAL DISPLAY PANEL - Single-Dose ADD-Vantage Vial 250 mg
NDC 0006-3551-58
Single-dose ADD-Vantage® vial
250
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
IMIPENEM 250 mg (Anhydrous Equivalent)
CILASTATIN EQUIVALENT 250 mg
CILASTATIN EQUIVALENT 250 mg
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY
NOT FOR DIRECT INFUSION
NOT FOR DIRECT INFUSION
PRIMAXIN is a registered trademark of Merck Sharp & Dohme Corp.
ADD-Vantage is a registered trademark of ABBOTT LABORATORIES, Inc.
9960800
For the Preparation of Intravenous Solutions and USUAL ADULT DOSAGE: See accompanying circular.
Store dry material below 25°C.
After constitution as directed, the solution maintains satisfactory potency for 4 hours at room temperature.
Consult accompanying INSTRUCTIONS FOR USE.
Use only with ADD-Vantage® Diluent Containers.
Rx only
250 mg | No. 3551
Merck Sharp & Dohme Corp., a subsidiary of
MERCK & CO., INC.
Whitehouse Station, NJ 08889, USA
MERCK & CO., INC.
Whitehouse Station, NJ 08889, USA
19PRINCIPAL DISPLAY PANEL - Single-Dose ADD-Vantage Vial 500 mg
NDC 0006-3552-59
Single-dose ADD-Vantage® vial
500
PRIMAXIN® I.V.
(IMIPENEM AND CILASTATIN FOR INJECTION)
IMIPENEM 500 mg (Anhydrous Equivalent)
CILASTATIN EQUIVALENT 500 mg
CILASTATIN EQUIVALENT 500 mg
CAUTION: SINGLE DOSE VIAL / FOR I.V. USE ONLY
NOT FOR DIRECT INFUSION
NOT FOR DIRECT INFUSION
PRIMAXIN is a registered trademark of Merck Sharp & Dohme Corp.
ADD-Vantage is a registered trademark of ABBOTT LABORATORIES, Inc.
9940700
For the Preparation of Intravenous Solutions and USUAL ADULT DOSAGE: See accompanying circular.
Store dry material below 25°C.
After constitution as directed, the solution maintains satisfactory potency for 4 hours at room temperature.
Consult accompanying INSTRUCTIONS FOR USE.
Use only with ADD-Vantage® Diluent Containers.
Rx only
500 mg | No. 3552
Merck Sharp & Dohme Corp., a subsidiary of
MERCK & CO., INC.
Whitehouse Station, NJ 08889, USA
MERCK & CO., INC.
Whitehouse Station, NJ 08889, USA
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