Prozac carries a moderately high risk of addiction, along with Xanax and similar anti-depressant medications. Additionally, as it's an SSRI (selective serotonin reuptake inhibitor), there's a potential risk of anticholinergic side effects. These health issues have also been found with tricyclic antidepressants, which are used to treat mood disorders and compulsive behaviors.
If a patient's medical history includes at least two to three TBIs, and/or a history of using diphenhydramine-like antihistamine medicines (such as Benadryl), that's something doctors are keeping a closer eye on these days. These medications were only designed to be a temporary tool, not a permanent solution. Rarely used, they won't likely cause a major issue many years down the road.
One of the most effective countermeasures against the degenerative effects of SSRIs and tricyclic antidepressants is to consume choline, either in supplement form or through animal-based protein (meats, cheeses, eggs, and other forms of dairy). When you're weaning off of atypical antipsychotics like Effexor, Olanzapine, Risperidone, Geodone, etc., your brain will experience insufficient serotonin production levels; it adapted to operating with a suppressed neurotransmitter intake. This can lead to insomnia, nightmares and night terrors, "brain fog", irritability and digestive issues... which can be managed with serotonin supplements or foods that are able to boost your body's production of it.
Neither one are "silver bullets", but they can help considerably when the withdrawals and terrors get really bad. One thing you may also notice is that you need a higher intake of protein, to handle the physical effects of PTSD; you might also want to consider switching to unbleached bread flour, as it has a higher gluten/protein content than the all-purpose stuff. These can be annoying at times, but you have to remember your body's trying to recover from being on drugs (even if it's the legal stuff.)
(Effexor was originally released as an "atypical antipsychotic", but many drugs in that class can also be used as an off-label medication to help with mood disorders, depression and anxiety.)
An important thing to remember, critically important, is that your health is a team effort. If you want to know why your doctor only prescribed one day's worth, ask him; a well-informed patient saves everyone time, money, and medical resources. And if your doctor throws a hissy fit, thinking you questioned his expertise... contact your insurance company and get a new referral ASAP, because he ain't keeping his Oath.
Sources:
Committee on Sports-Related Concussions in Youth; Board on Children, Youth, and Families; Institute of Medicine; National Research Council; Graham R, Rivara FP, Ford MA, et al., editors. (2014 Feb 4) "
Consequences of Repetitive Head Impacts and Multiple Concussions." Washington D.C., National Academies Press.
Drugs.com "
Tricyclic Antidepressants"
Merz, B. (2015, Jan 28) "
Common anticholinergic drugs like Benadryl linked to increased dementia risk." Harvard Medical School; Harvard Health Publishing.
Volpi-Abadie, Jacqueline, Adam M. Kaye, and Alan David Kaye.
“Serotonin Syndrome.” The Ochsner Journal 13.4 (2013): 533–540.
Zeisel, Steven H., and Kerry-Ann da Costa. “
Choline: An Essential Nutrient for Public Health.”
Nutrition reviews 67.11 (2009): 615–623.
PMC. Web. 28 Dec. 2017.