insulin. With the insulin bottle held firmly on a counter or tabletop, insert the needle through the rubber cap into the bottle. Push the plunger down so that the air goes from the syringe into the bottle. Turn the bottle upside down so that the air in it is at the top. With the tip of the needle kept in the liquid, pull the plunger back to your dose. If any air bubbles are in the syringe, push the plunger back in and draw up the dose again. Remove the syringe and needle from the bottle. Do ...