Short-acting benzodiazepines (e.g. alprazolam) need to be taken three to four times a day, which is not very practical. For this reason, they may not be suitable for long-term administration. They may be more useful for immediate, one-off alleviation of anxiety or distress and may thus be a good option for p.r.n. use.
Add 10 years to the date of issuance if you were over 16 when you got the passport, or five years if you were 15 or younger. For instance, if you received a passport in November 2004 at age 25, your passport expires in November 2014. If you got the passport at age 14, it expired in November 2009.
Your passport's expiration date depends upon your age when the passport was issued. If you were at least 16 years old when you received your passport, it is valid for 10 years. If you were 15 years old or younger when you got your passport, it will be valid for 5 years.