People who suffer from insomnia are tempted to go to the nearest drug store and ask for the best over the counter sleep aid. But unfortunately, it may not be the best way in dealing such sleeping problem like insomnia. Numerous over the counter sleep remedies are problematic and don't produce quality sleep. Most of these over the counter sleep aids are simply repackaged antihistamines which is a common allergy drug. Drug makers are using a drug designed for another purpose, and that is to treat allergy symptoms and using a side effect of the drug like drowsiness to treat another issue like sleeplessness. This kind of approach does not always lead to the most efficient and effective way of treating a medical issue and the quality of sleep produced is low and often result to drowsiness the next day which may affect performance.