Idea: Harm Reduction/Dosing App

Ok I got this idea from the caffeine tracker app. The general idea is that you put in the drug you take and the dose and the app will calculate your approx. blood level using the half life of the drug and the dose you put in. It will also recommend the safe dosage levels for the drug (from erowid light, medium, strong, heavy etc.) and automatically warn you if you put in dangerous dosages or combinations that may prove dangerous.

So the functions:

1. Calculations of blood dosage level for redose helping (Also differents ROA's for the calculations)

2. Providing of recommended dosages

3. Dangerous combo's warning

4. Adjustable body weight that is used in the calculations

5. Reminders for some drugs: MDMA: drink a glass of water every hour Stimulants (Meth, Speed): eat every x hours etc.

6. Integrated logbook that keeps log of every time you put in a drug so you have some insight in how much you use. (to reduce addiction potential)

7. Automatic warning if you are about to exceed safe dosage level

8. Maybe some general harm reduction information on every drug and general first-aid information.

What are your thought on this? Any other functions/improvements that you can think of? I know it can never be perfect because of individual differences and drug impurities but this should give people a general idea of whats going on (really some people have NO idea what they are doing). All opinions are welcome!