Butalbital is a type of barbiturate drug that doctors use in patients who need treatment for tension headaches with other medications. Buy Butalbital online is a generic version which means it is available in many brand names. This medication is a CNS depressant that reduces neuronal excitability, impulse conduction, and release of neurotransmitters. It binds with certain neurotransmitters that produce a calming effect on the central nervous system.