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.
USPS Size/Weight Requirements. Packages can weigh as much as 70 pounds, size and weight limits for international shipments will vary by country and mail class. Thick Envelopes: Includes bubble-mailers and other large, padded envelopes and mailers and has the same size restrictions as a flat.