Besides the many forms of therapy medication is an essential part of treating ptsd .The brains of people with PTSD process "threats" differently, in part because the balance of chemicals called neurotransmitters is out of whack. They have an easily triggered "fight or flight" response, which is what makes you jumpy and on-edge. Constantly trying to shut that down could lead to feeling emotionally cold and removed.
Medications help you stop thinking about and reacting to what happened, including having  nightmares and flashbacks. They can also help you have a more positive outlook on life and feel more "normal" again. Several types of drugs affect the chemistry in your brain related to fear and anxiety. Doctors will usually start with medications that affect the neurotransmitters serotonin or norepinephrine (SSRIs and SNRIs), including
The FDA has approved only paroxetine and sertraline for treating ptsd. However, many medications are used off label.
Because people respond differently to medications, and not everyone's PTSD is the same, your doctor may prescribe other medicines "off label," too. (That means the manufacturer didn't ask the FDA to review studies of the drug showing that it's effective specifically for PTSD.) These may include:

• antidepressants
• Monoamine oxidase inhibitors (MAOIs)
• Antipsychotics or second generation antipsychotics (SGAs)
• Beta-blockers
• Benzodiazepines 

  Speak with your provider about concerns with medications so you can come up with a treatment plan that you are comfortable with