Abatacept Abatacept is a drug that can help prevent your condition causing damage to your body. You can discuss the benefits and risks of taking abatacept with healthcare professionals before you start treatment. Adalimumab Adalimumab is an anti-TNF drug used for various types of arthritis. Learn how it works, how long it takes, risks and side-effects. Allopurinol Allopurinol is used to treat gout. Learn how it works, how long it takes, risks and side-effects. Amitriptyline Amitriptyline treats chronic pain from arthritis, spinal problems and fibromyalgia. Learn about how it works, risks and side-effects. Apremilast Apremilast is used to treat psoriasis and psoriatic arthritis. Find out how long it takes to work, how it’s taken and possible side-effects. Aspirin Aspirin is a non-steroidal anti-inflammatory drug (NSAID) available over the counter to relieve mild-moderate pain. Learn how it's used, risks and side-effects. Azathioprine Azathioprine is a disease-modifying anti-rheumatic drug (DMARD) for rheumatoid arthritis and lupus. Learn how it's used, risks and side-effects.