What pills remove THC from system?

The only known way to clean metabolized THC from your system is not sold OTC, unless you find a place that sells large amounts of time. That's right, time is the only method shown to work through study. You might pass an in home pee test by drinking gallons of water to dilute the THC metabolites, but if they send those out to a testing facility, the facility will red flag the sample as tampered with, since other metabolites that should be present in urine just from eating and drinking, are diluted.

If you have to pass tests to get a job, not violate parole agreements, keep a job after an accident, the best way to pass is to NOT DO DRUGS.

Also, most labs do not buy the excuse of "I was in the car with someone smoking, it must have gotten in me through that", there are extensive metrics for how much THC can be absorbed through second hand smoke, and even being in a closet so thick with smoke you can't see your hand a foot from your face, you cannot intake enough THC to fail a test.

Bottom line, don't celebrate nailing that job interview by toking up with yo hommies.