Why the Body Shakes During Anxiety. Shaking is a result of an activated fight or flight system - an evolutionary tool that's meant to keep you safe in times of danger. During intense anxiety, your body is flooded with adrenaline/epinephrine. Adrenaline is pure energy, and your body shakes as a result.
Your doctor may start you on a low dose of oxybutynin and gradually increase your dose. You may notice some improvement in your symptoms within the first two weeks of treatment. However, it may take six to eight weeks to experience the full benefit of oxybutynin. Talk to your doctor if your symptoms do not improve at all within eight weeks.
A: This answer depends on how much you take and for how long you have been taking the medication oxycodone. One tablet can last in your system up to 3 days, so if you are taking it on a daily basis, you are probably looking at about one month to become completely free of the medication.