GHB (gamma-hydroxybutyrate) is produced naturally in the human body in very small amounts. When taken as a recreational drug, and especially when taken in combination with alcohol or other drugs, GHB can be extremely dangerous. GHB is a central nervous system depressant.
International flights always allow carry-on luggage, but each airline has its own restrictions as to quantity, size and weight. Some international carry-on policies restrict bag weights to 11 lbs. or less, while domestic flights rarely have a weight limit.
Allowed Bags. The size of carry-on luggage allowances varies between the different airlines, so it's important to check with your carrier before you travel. The majority of airlines allow up to two bags, one regular carry-on and one personal bag, for an international flight.acking enough items to keep you occupied during a long international flight, coupled with making sure you have necessary items in case your checked baggage is delayed, can be challenging. Airlines have restrictions on carry-on luggage size to ensure all the passengers have room to safely stow their belongings.