Size 9 capsule dosing tube for rats.

• For size 9 gelatin capsules
• Flexible to reduce the risk of perforation
• Rounded leading edge to minimize trauma
• Sterilized by ETO gas

These polyurethane tubes are designed to administer a size 9 gelatin capsule, such as those made by Torpac Inc., to rats or similar size rodents. The flexible tubes can reduce the chance of trauma compared to rigid metal dosing syringes.

The end of the tube grips the 2.65 mm diameter capsules in a taper, which allows the gripping force to be controlled by how forcefully the capsule is inserted into the tube. The leading edge of the tube is rounded to prevent damage to the esophagus. Expel the capsule with air, water, or saline in a syringe connected to the luer end of the dosing tube. Using water or saline will be more effective than air, since air will compress, and following the capsule with liquid can help the capsule move into the stomach.