You're laughing because it contains plants? Plants do the job and most medication is a synthetic version or there's a really long list where the medicine contains chemicals from the natural plant, eg anabasine . In natural form plants produce less side effects. Breaking down the ingredients and their uses:
Celery: high blood pressure, inflammation and water retention
Nettle: kidney function, rheumatism and gout
Birch: gout, rheumatism, dropsy, kidney stone solvent
Alfalfa: LDL cholesterol and kidney function
Devil's Claw: osteoarthritis, gout and rheumatoid arthritis
Willow: headaches, ankylosing spondylitis, osteoarthritis and gout
Boswellia Serrate: brain edema, osteoarthritis, rheumatoid arthritis, joint pain, bursitis, tendonitis