The injection probably contained some kind of drug or disease serum that doesn't show up under ordinary methods of analysis.

The injection contains a local anesthetic that sometimes includes a corticosteroid.

This injection contains an experimental drug which makes him fall to the floor in immense pain.

The injection of blood contains small cells called platelets, which contain platelet derived growth factor.

The injection contains a narcotic and a soporific.

His hypodermic injections contained sulfate of strychnine, atropine and boracic acid.

The two injections combined contain 180 micrograms of antigen, the piece of the H5N1 virus designed to spur immunity.

The contraceptive injection contains the hormone progestogen.

According to a standard research practice, neither the patients nor their doctors knew what the injections, which were given twice a week for 24 weeks, contained.

Each injection may contain one, or a combination of different types of insulin, which act for a short, intermediate or longer period of time.