Naturo Pharm Arnica assists the body’s natural response to shock, injury, fatigue and bruising and aids normal muscle recovery after strenuous exercise or exertion.
Aids normal defence mechanisms in times of trauma and after surgery.
Naturo Pharm Arnica also helps the body’s natural ability to cope with long-distance air travel and helps restore normal sleep patterns.
TAPS PP1349
You can read more about homoeopathy here
Generally, if you are not 100% sure about the correctness of the preparation, use a lower potency (i.e. 6X - 30c). Higher potencies (200c - 1M) should be taken only under practitioner advice.