[Drug interaction between ceftriaxone and theodrenaline/cafedrine : A case example].

Area of Science:

• Anesthesiology
• Pharmacology
• Critical Care Medicine

Background:

• Intravenous medication interactions are a frequent challenge in intensive care and surgery.
• High medication loads and limited access points increase the risk of adverse drug events.
• This report details a novel interaction involving theodrenaline/cafedrine and antibiotics.

Observation:

• During laparoscopic cholecystectomy, a patient received ceftriaxone for antibiotic prophylaxis.
• Simultaneously, theodrenaline/cafedrine was administered due to a mild blood pressure decrease.
• A visible chemical precipitation reaction occurred in the intravenous line.

Findings:

• The administration of theodrenaline/cafedrine concurrently with ceftriaxone led to a significant chemical precipitation.
• In vitro testing confirmed that theodrenaline/cafedrine precipitates with ceftriaxone and cefazoline.
• This indicates a potential incompatibility between theodrenaline/cafedrine and certain cephalosporin antibiotics.

Implications:

• Highlights a new drug-drug interaction relevant to perioperative and critical care settings.
• Emphasizes the need for vigilance regarding intravenous medication compatibility.
• Suggests careful consideration before co-administering theodrenaline/cafedrine with cephalosporin antibiotics.