modafinil 100 mg tablet is a prescription medicine that reduces extreme sleepiness which may happen due to narcolepsy. The tablet removes any sleep disorders and further removes obstructive sleep apnea. It helps you stay awake during your working hours. Modafinil is a tablet that promotes wakefulness. The tablet should not be used during allergic condition. The dosage should be taken with medical condition and gives good medical response to treatment.