Chloroquine administration for malaria suppression after abdominal surgery.

Area of Science:

• Tropical Medicine
• Pharmacology

Background:

• Postoperative malaria suppression is crucial in endemic regions.
• Parenteral chloroquine is common in emergencies, but oral routes may be more accessible.

Purpose of the Study:

• To compare plasma chloroquine levels after oral versus subcutaneous administration.
• To assess the efficacy and safety of oral chloroquine for postoperative malaria prophylaxis.

Main Methods:

• A comparative study involving patients undergoing abdominal surgery and healthy controls.
• Measurement of plasma chloroquine levels following oral and subcutaneous administration of 300 mg chloroquine base.

Main Results:

• No significant differences in plasma chloroquine levels were observed between oral and subcutaneous administration.
• Chloroquine concentrations achieved suppressive levels for at least 3 days (>0.1 nmol/ml).
• Oral administration was well-tolerated in both patient and control groups.

Conclusions:

• Oral chloroquine is a viable, cost-effective, and safe alternative for postoperative malaria suppression.
• It is particularly useful where parenteral chloroquine is unavailable and Plasmodium strains remain sensitive.