That is how drugs such as Valium, Baclofen, Valproate and Neurontin work â by causing an increase of GABA production in the brain. Unfortunately, these drugs all have a plethora of side effects that they can cause as well as being potentially addictive, making them a poor solution for long-term use.
USPS Customer Service. 1  USPS contact numbers are available here for the customer to call the USPS phone number and speak to the representative. 2  Service number: 1-800-275-8777. 3  Domestic & International USPS Tracking: 1-800-222-1811.
Call domestic customer service. For general information and inquiries, you can call the domestic USPS customer service line at: 1-800-ASK-USPS (1-800-275-8777) Note that the Telecommunications Device for the Deaf (TDD) or Teletypewriter (TTY) relay number is: 1-800-877-8339.