No, it is illegal to mail Tylenol to Canada without proper authorization and documentation.
Yes
Yes, in Canada, you generally need a prescription from a licensed healthcare provider to purchase medication.
No. It's been agreed between the nations to honor each other's stamps for international mail.
Is buying anabolic steroids by mail from Canada to the United States a moral turpitude?
Yes, it is legal. Mail order pharmacies regularly mail prescription medication. Take the weather into consideration when mailing it, though. I would mail it overnight and make sure your brother knows when it's arriving so that it doesn't stay in a baking hot or freezing cold mailbox for any length of time. Most medication is temperature sensitive.
You send it to an airport that will port the letter to Canada
7 to 10 days
yes
3-5 days express mail
what is the required postage from california to canada for a letter?