As the injection took effect, I left the ward.

The injections take only a few minutes and cause minimal discomfort.

Struggling to his feet, he waved the medic away as the injection took effect.

By the time the injection took effect, at least one of my worries had been eased.

But injection into a muscle would take much longer to work than the intravenous method.

"Red asked him how long the injection would take," Reed said.

The injection usually takes only about 10 minutes.

On his chest, the inflamed areas were already losing their angry color as the injections took effect.

"It might be better to wait until the injection takes hold."

Patients can ask for a patch from the nurse to numb the area of where the injection will take place to reduce pain.