Ceftriaxone adverse reactions
Ceftriaxone for injection is generally well tolerated. In clinical trials, the following adverse reactions, which were considered to be related to ceftriaxone for injection therapy or of uncertain etiology, were observed:
Local Reactions - pain, induration and tenderness was 1% overall. Phlebitis was reported in < 1% after IV administration.
Hypersensitivity - rash (1.7%). Less frequently reported (< 1%) were pruritus, fever or chills.
Hematologic - eosinophilia (6%), thrombocytosis (5.1%) and leukopenia (2.1%). Less frequently reported (< 1%) were anemia, hemolytic anemia, neutropenia, lymphopenia, thrombocytopenia and prolongation of the prothrombin time.
Gastrointestinal - diarrhea (2.7%). Less frequently reported (< 1%) were nausea or vomiting, and dysgeusia. The onset of pseudomembranous colitis symptoms may occur during or after antibacterial treatment (see WARNINGS).
Hepatic - elevations of SGOT (3.1%) or SGPT (3.3%). Less frequently reported (< 1%) were elevations of alkaline phosphatase and bilirubin.
Renal- elevations of the BUN (1.2%). Less frequently reported (< 1%) were elevations of creatinine and the presence of casts in the urine.
Central Nervous System - headache or dizziness were reported occasionally (< 1%).
Genitourinary- moniliasis or vaginitis were reported occasionally (< 1%).
Miscellaneous- diaphoresis and flushing were reported occasionally (< 1%).
Other rarely observed adverse reactions (<0.1%) include abdominal pain, agranulocytosis, allergic pneumonitis, anaphylaxis, basophilia, biliary lithiasis, bronchospasm, colitis, dyspepsia, epistaxis, flatulence, gallbladder sludge, glycosuria, hematuria, jaundice, leukocytosis, lymphocytosis, monocytosis, nephrolithiasis, palpitations, a decrease in the prothrombin time, renal precipitations, seizures, and serum sickness.
Postmarketing Experience: In addition to the adverse reactions reported during clinical trials, the following adverse experiences have been reported during clinical practice in patients treated with ceftriaxone for injection. Data are generally insufficient to allow an estimate of incidence or to establish causation.
A small number of cases of fatal outcomes in which a crystalline material was observed in the lungs and kidneys at autopsy have been reported in neonates receiving ceftriaxone for injection and calcium-containing fluids. In some of these cases, the same intravenous infusion line was used for both ceftriaxone for injection and calcium-containing fluids and in some a precipitate was observed in the intravenous infusion line. At least one fatality has been reported in a neonate in whom ceftriaxone for injection and calcium-containing fluids were administered at different time points via different intravenous lines; no crystalline material was observed at autopsy in this neonate. There have been no similar reports in patients other than neonates.
Gastrointestinal  stomatitis and glossitis.
Genitourinary  oliguria.
Dermatologic  exanthema, allergic dermatitis, urticaria, edema. As with many   medications, isolated cases of severe cutaneous adverse reactions (erythema multiforme,  Stevens-Johnson syndrome or Lyells syndrome/toxic epidermal necrolysis) have been  reported.
Cephalosporin Class Adverse Reactions
In addition to the adverse reactions listed above which have been observed in patients  treated with ceftriaxone, the following adverse reactions and altered laboratory test results have been reported for cephalosporin class antibiotics:
Adverse Reactions: Allergic reactions, drug fever, serum sickness-like reaction, renal  dysfunction, toxic nephropathy, reversible hyperactivity, hypertonia, hepatic dysfunction  including cholestasis, aplastic anemia, hemorrhage, and superinfection.
Altered Laboratory Tests: Positive direct Coombs test, false-positive test for urinary   glucose, and elevated LDH.
Several cephalosporins have been implicated in triggering seizures, particularly in  patients with renal impairment when the dosage was not reduced (seeDOSAGE AND ADMINISTRATION). If seizures associated with drug therapy occur, the drug should  be discontinued. Anticonvulsant therapy can be given if clinically indicated.