Suddenly stopping Keppra (levetiracetam), especially at a high dose like 1000 mg twice a day, can lead to withdrawal seizures and a potential worsening of seizure control. Patients may also experience side effects such as anxiety, irritability, or mood changes. It's crucial to taper off the medication under the guidance of a healthcare professional rather than stopping abruptly. Always consult your doctor before making any changes to your medication regimen.
don't know about ritalin, but adderall is instant (well 30 minutes).
== == == == I'm not 100% sure, but I think it's because they become drier. Yes, this is because they get dried out and also because of the blood pressure in the eye. If you work on the computer all day simple eye excercises can prevent this. It is caused by dryness. Try using systane ultra drops 2xday.