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Merrem (Meropenem) - Side Effects and Adverse Reactions

 
 



ADVERSE REACTIONS

Adult Patients

During clinical investigations, 2904 immunocompetent adult patients were treated for non-CNS infections with MERREM I.V. (500 mg or 1000 mg q 8 hours). Deaths in 5 patients were assessed as possibly related to meropenem; 36 (1.2%) patients had meropenem discontinued because of adverse events. Many patients in these trials were severely ill and had multiple background diseases, physiological impairments and were receiving multiple other drug therapies. In the seriously ill patient population, it was not possible to determine the relationship between observed adverse events and therapy with MERREM I.V.

The following adverse reaction frequencies were derived from the clinical trials in the 2904 patients treated with MERREM I.V.

Local Adverse Reactions

Local adverse reactions that were reported irrespective of the relationship to therapy with MERREM I.V. were as follows:

Inflammation at the injection site

2.4%

Injection site reaction

0.9%

Phlebitis/thrombophlebitis

0.8%

Pain at the injection site

0.4%

Edema at the injection site

0.2%

Systemic Adverse Reactions

Systemic adverse clinical reactions that were reported irrespective of the relationship to MERREM I.V. occurring in greater than 1.0% of the patients were diarrhea (4.8%), nausea/vomiting (3.6%), headache (2.3%), rash (1.9%), sepsis (1.6%), constipation (1.4%), apnea (1.3%), shock (1.2%), and pruritus (1.2%).

Additional adverse systemic clinical reactions that were reported irrespective of relationship to therapy with MERREM I.V. and occurring in less than or equal to 1.0% but greater than 0.1% of the patients are listed below within each body system in order of decreasing frequency:

Bleeding events were seen as follows: gastrointestinal hemorrhage (0.5%), melena (0.3%), epistaxis (0.2%), hemoperitoneum (0.2%), summing to 1.2%.

Body as a Whole: pain, abdominal pain, chest pain, fever, back pain, abdominal enlargement, chills, pelvic pain.

Cardiovascular: heart failure, heart arrest, tachycardia, hypertension, myocardial infarction, pulmonary embolus, bradycardia, hypotension, syncope

Digestive System: oral moniliasis, anorexia, cholestatic jaundice/jaundice, flatulence, ileus, hepatic failure, dyspepsia, intestinal obstruction

Hemic/Lymphatic: anemia, hypochromic anemia, hypervolemia

Metabolic/Nutritional: peripheral edema, hypoxia

Nervous System: insomnia, agitation/delirium, confusion, dizziness, seizure (see PRECAUTIONS), nervousness, paresthesia, hallucinations, somnolence, anxiety, depression, asthenia

Respiratory: respiratory disorder, dyspnea, pleural effusion, asthma, cough increased, lung edema

Skin and Appendages: urticaria, sweating, skin ulcer

Urogenital System: dysuria, kidney failure, vaginal moniliasis, urinary incontinence

Adverse Laboratory Changes

Adverse laboratory changes that were reported irrespective of relationship to MERREM I.V. and occurring in greater than 0.2% of the patients were as follows:

Hepatic: increased SGPT (ALT), SGOT (AST), alkaline phosphatase, LDH, and bilirubin

Hematologic: increased platelets, increased eosinophils, decreased platelets, decreased hemoglobin, decreased hematocrit, decreased WBC, shortened prothrombin time and shortened partial thromboplastin time, leukocytosis, hypokalemia

Renal: increased creatinine and increased BUN

NOTE: For patients with varying degrees of renal impairment, the incidence of heart failure, kidney failure, seizure and shock reported irrespective of relationship to MERREM I.V., increased in patients with moderately severe renal impairment (creatinine clearance >10 to 26 mL/min).

Urinalysis: presence of red blood cells

Complicated Skin and Skin Structure Infection

In a study of complicated skin and skin structure infection, the type of clinical adverse reactions were similar to those listed above. The patients with the most common adverse events with an incidence of >5% were: headache (7.8%), nausea (7.8%), constipation (7.0%), diarrhea (7.0%), anemia (5.5%), and pain (5.1%). Adverse events with an incidence of >1%, and not listed above, include: pharyngitis, accidental injury, gastrointestinal disorder, hypoglycemia, peripheral vascular disorder, and pneumonia.

Pediatric Patients

Clinical Adverse Reactions

MERREM I.V. was studied in 515 pediatric patients (> 3 months to < 13 years of age) with serious bacterial infections (excluding meningitis. See next section.) at dosages of 10 to 20 mg/kg every 8 hours. The types of clinical adverse events seen in these patients are similar to the adults, with the most common adverse events reported as possibly, probably or definitely related to MERREM I.V. and their rates of occurrence as follows:

Diarrhea

3.5%

Rash

1.6%

Nausea and Vomiting

0.8%

MERREM I.V. was studied in 321 pediatric patients (> 3 months to < 17 years of age) with meningitis at a dosage of 40 mg/kg every 8 hours. The types of clinical adverse events seen in these patients are similar to the adults, with the most common adverse events reported as possibly, probably, or definitely related to MERREM I.V. and their rates of occurrence as follows:

Diarrhea

4.7%

Rash (mostly diaper area moniliasis)

3.1%

Oral Moniliasis

1.9%

Glossitis

1.0%

In the meningitis studies the rates of seizure activity during therapy were comparable between patients with no CNS abnormalities who received meropenem and those who received comparator agents (either cefotaxime or ceftriaxone). In the MERREM I.V. treated group, 12/15 patients with seizures had late onset seizures (defined as occurring on day 3 or later) versus 7/20 in the comparator arm.

Adverse Laboratory Changes

Laboratory abnormalities seen in the pediatric-aged patients in both the pediatric and the meningitis studies are similar to those reported in adult patients.

There is no experience in pediatric patients with renal impairment.

Post-marketing Experience

Worldwide post-marketing adverse events not otherwise listed in the product label and reported as possibly, probably, or definitely drug related are listed within each body system in order of decreasing severity. Hematologic - agranulocytosis, neutropenia, and leukopenia; a positive direct or indirect Coombs test, and hemolytic anemia. Skin − toxic epidermal necrolysis, Stevens-Johnson Syndrome, angioedema, and erythema multiform.



REPORTS OF SUSPECTED MERREM SIDE EFFECTS / ADVERSE REACTIONS

Below is a sample of reports where side effects / adverse reactions may be related to Merrem. The information is not vetted and should not be considered as verified clinical evidence.

Possible Merrem side effects / adverse reactions in 20 year old female

Reported by a pharmacist from United States on 2011-10-18

Patient: 20 year old female

Reactions: Polymenorrhoea

Suspect drug(s):
Merrem

Other drugs received by patient: Ortho TRI-Cyclen LO



Possible Merrem side effects / adverse reactions in 69 year old female

Reported by a pharmacist from United States on 2011-10-26

Patient: 69 year old female weighing 61.0 kg (134.2 pounds)

Reactions: Death

Adverse event resulted in: death

Suspect drug(s):
Merrem

Other drugs received by patient: Acetaminophen; Lotramine; Prevacid; Multi-Vitamins; Fluconasole; Sertraline Hydrochloride; Vango; Aduaneb; Flumax; Guaifenesin; Furosemide; Chlorhexedine; Alovinox; Lidocaine HCL Viscous; Zantal; Gabapentin



Possible Merrem side effects / adverse reactions in 51 year old female

Reported by a consumer/non-health professional from United States on 2011-10-31

Patient: 51 year old female

Reactions: Mental Disability, Paralysis

Adverse event resulted in: disablity

Suspect drug(s):
Merrem



See index of all Merrem side effect reports >>

Drug label data at the top of this Page last updated: 2008-01-24

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