Norgesic Forte - Can a Track and Field competitor take this drug?

Norgesic Forte contains a combination of aspirin, caffeine and orphenadrine.

Aspirin is in a class of drugs called salicylates. Aspirin works reducing substances in the body that cause pain and inflammation. It is used to reduce pain, inflammation, and fever.
Caffeine is used in this combination to increase the pain relieving effects of aspirin and orphenadrine.
Orphenadrine is a muscle relaxant. It works by blocking nerve impulses (or pain sensations) that are sent to the brain.
Aspirin/caffeine/orphenadrine is used, along with rest and physical therapy, to treat injuries and other painful muscular conditions.
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Medicines containing caffeine have been used to enhance athletic performance. Caffeine is a stimulant that causes increased alertness, decreased fatigue and sharper concentration. It also increases heart rate and blood pressure.
Painkillers such as aspirin have been used to mask athletes' pain so they can continue to compete and perform beyond their usual pain thresholds.

Depending on the level of competition, the majority of drugs that can be used by athletes can be detected in samples of urine.