Your questions on Arthropower are being answered by the famous sports physician and medical specialist Michael Wawroschek, director of the Swiss Olympic Medical Base, SportClinic Zurich.

Arthropower® is a dietary supplement.

Any person with a high level of physical activity, e.g. on the job or doing sports - can  take Arthropower®.

Arthropower® supplies the body with essential mucopolysaccharides, which in this form do not occur in fruits, vegetables, meat or fish. Precisely when having a high level of physical achievement it is vital to provide the body with all available nutrients in sufficient quantities. However, Arthropower® as a dietary supplement does not possess - by its definition - a therapeutic application.

Research has shown that there are no risks in taking Arthropower® or any other comparable dietary supplement.
Several studies (e.g. GAIT) confirm the excellent tolerability of the dose rates administered at placebo level.
The Federal Institute for Risk Assessment in Germany (Bundesinstitut für Risikobewertung) published a risk assessment on taking dietary supplements containing chondroitin sulphate and glucosamine sulphate.

There is no RDA (Recommended Daily Allowance) set out by the European Union.
However, I recommend taking 1 tablet unchewed with plenty of liquid once a day. The standard package (90 tablets) lasts for a period of 3 months.