Injection Site Tenderness. It is common to experience irritation and tenderness or discomfort if vitamin B12 supplementation is received by injection. These side effects tend to subside after receiving the shot.
The United States Postal Service recommends that mailboxes be 41-45 inches off of the ground and 6-8 inches back from the curb with a minimum recommendation of 4 feet off the ground for those people living in the city.
Full Answer. Each additional ounce increases the amount of postage required, as does thickness greater than 1/4 inch. Eight by 5 inches is within the maximum dimensions for a U.S. postal letter. The maximum is 6 1/8 inches high, 11 1/2 inches long and 1/4 inch thick.