When giving a vaginal or rectal suppository, what type of lubricant should you use?

Using a water-based lubricant is appropriate when giving a vaginal or rectal suppository because it effectively facilitates the insertion process without interfering with the absorption of the medication. Water-based lubricants are safe to use with most medications and do not create a barrier that might prevent the suppository from dissolving properly once administered.

In contrast, oil-based lubricants can potentially affect the absorption of certain suppositories, especially those designed for systemic effects, as they may create a barrier that the medication cannot penetrate. Alcohol-based lubricants could cause irritation to the sensitive mucous membranes in the vaginal or rectal area, leading to discomfort, and are generally not recommended for such applications. Silicone-based lubricants, while they may provide a slippery surface, can also be incompatible with some medications and are not the best choice for use with suppositories. Therefore, a water-based lubricant is the most suitable and safest option in this scenario.