Hi there Anxiouson22: regarding your concern, I'd like to add some of my own thoughts cause I was in your shoes not too long ago when I started out being an RPh
-You spent years in pharmacy school with the most difficult subjects, you'll spend probably a week knowing all the insurance basics, so no worries! Be friendly and ask your senior techs to help! Know the basics on insurance: PA, refill too soon, vacation overide, dual coverage (COB: coordination of benefit); tricare/military type of coverage, billing for compounding etc.
-Regarding interaction: this is where you will do your job to the public as a pharmacist. KNOW YOUR DRUG CLASS!! I can't emphasize this enough. I told this to all the students I have precepted who are going into retail. You've got to know your drug CLASS and their members, and that'll be 90% of the job. If Rx is for simvastatin and amlodipine and for some reason you can't remember the dose cut-off of simvastatin to avoid this interaction, choose some other members in the statin class that doen not have interaction such as Lipitor, Pravachol, etc. and tell the MD to choose from those. If Rx is for Mobic 15 mg QD and insurance does not pay for this, choose some other member in the NSAID class such as Motrin, Naproxen, Lodine, Voltaren etc. then go from there: if patients can't do frequent dosing, chose BID agent; if they have hx of CAD (you see Plavix or Pradaxa or such on their profile), tell MD to move up the ladder in the Pain Meds Class--> opioid, first choose non-controlled med such as Tramadol (in my state, it's still not a controlled).
If Rx is for Boniva and insurance dose not pay, choose a different bisphophanates in that CLASS: Fosamax, Actonel, etc. and tell MD which one it pays and go with that. If Rx is for Topicort and the generic is too expensive and patient ask for something else, choose another topical steroid with similar potency such as Elocon, Cutivate etc. If Rx is for Skelaxin and insrance requires PA, choose a different muscle relaxant (preferably not soma LOL) like Flexeril, Baclofen, Robaxin etc. As you can see from all these examples, if you know your drug CLASS and its members, you can come up really quick with a recommendation
-As time goes on, you will become familiar with all the questions frequently asked / interactions. You will also become familiar with other things such as Pregnancy, Lactation, Allergy-specific etc. But usually the basic will come down to knowing your DRUG CLASS and asking yourself what thing similar to this drug that does the same stuffs but does not interact or contraindicates. Remember all the drug cards in school we used to group together?
-Of course I assume you will continue to strive to be a knowledgeable pharmacist and pursue further C.E.; therefore, you'll be more fluent as time goes by. Knowing the guidelines helps but not a must, it will make you stand out in a retail setting: you will know what is prefered first to treat GERD in pregnancy, to treat constipation in geri, etc. If you work in an institutional setting like mine (LTC, Hospice/ Palliative/ Geri), you must know your guideline on your population inside-out; but in the general retail world, knowing nothing about guidelines is still so-so OK (but I believe there's still some vague ideas in your fresh-out of school neurons, so you're good LOL)
-And don't be too hard on yourself, things take times. if you're willing to put in the effort, you'll be OK 🙂