Parkinson and Alzheimer's disease patients are often treated with very high doses of 20mg daily (usually along with other drugs). Anti-aging doses (dependant on age and condition) are more likely to be 2.5mg to 5mg once, twice or three times a week, or, 1mg to 3mg per day, with regular breaks. Deprenyl tablets are selegiline hydrochloride, which is deprenyl bonded to an in-organic molecule.
However, liquid deprenyl citrate (LDC) is selegiline bonded to an organic molecule, one reason why the liquid deprenyl citrate is considered to be superior. This form is generally recognized as the most pure and potent form of deprenyl available. It also allows precise titration for anti-aging purposes, as each ml drop in the bottle is equivalent to 1mg deprenyl citrate. The manufacturer recommends 1mg two times a week for 30 to 35 years olds up to 10mg daily for 80 year olds plus (an age/ dosage list in English is enclosed with order). Ward Dean, M.D., recommends reducing deprenyl doses after several months to lower levels and taking occasional sabbaticals.