Aspirin

· It reduces fevers and pain. · It has anti-inflammatory properties. · It acts as a blood-thinner. · It can cause stomach irritation. · It is not recommended for children under twelve years. · People with stomach ulcers, or on blood thinning drugs, should not take aspirin for pain.

Codeine

· Codeine is a very powerful pain reliever.

· Strong doses can control very severe pain.

· It is often combined with other analgesics to boost their effectiveness for pain relief.

· It is constipating.