Louise Said:

What language is most useful for pharmacy technician and furthermore a Pharmacist?

We Answered:

The most useful language, other than English, is the one that will make up a significant number of your patients. German, Spanish, French, Italian, Chinese, whatever it is.

EDIT: Latin isn't useful at all. Whatever Latin you will need, you'll memorize it. I will guarantee that you will not have to counsel anyone in Latin.

Ruben Said:

Considering a career as a pharmacy technician; advice, please?

We Answered:

Most chain pharmacies will train you. We do consider it to be a waste of money for people to take courses because they won't intrinsically increase your starting income. You will get a raise when you pass the certification exam. 6 months working as a pharm tech should be adequate enough for you to learn enough to pass the exam. Techs don't determine any dosing because it is illegal. You'll have to determine how many pills are in a bottle and what bottle of suspension to use. Most prescribers write the prescription in metric, and so, no need for conversion. However, you'll have to convert for the patient. As long as you remember 5mL=1 teaspoon and 15 mL= 1 tablespoon, you'll be fine.
Average salary of a Tech is a little less than $13 per hour. There is very little room for advancement. Maybe with a lot of experience and working in a hospital, you'll make more than $20 per hour. Most of the higher level jobs require you to be a pharmacist.
You cannot give any advice about a medication. You can only say what class of drug it is. Anything else, you have to refer to the pharmacist. Most people pick up the drug classes fairly quickly. Don't be afraid to ask if you don't know.