No, rash can occur after day 1 to 2 months of starting the medicine. The period can be very variable and cannot be predicted. You should discontinue the use of Modafinil and contact your doctor at the first sign of rash since it cannot be predicted whether the rash is serious or benign.

Modafinil is used to treat excessive sleepiness caused by narcolepsy (a condition that causes excessive daytime sleepiness). Modafinil may help decrease your sleepiness, but it will not cure your sleep disorder. However, one of the common side effects of Modafinil is trouble falling asleep, though it does not occur in everyone. Consult your doctor if you face any issues with sleep.

Yes, Modafinil is more effective than amphetamine. It not only helps to treat excessive sleepiness caused by narcolepsy (a condition that causes excessive daytime sleepiness) but also improves task performance. On comparing, it shows less association with side effects such as excess locomotor activities, anxiety, jitteriness, or rebound effects, which are seen with amphetamine.

Modafinil has a mood enhancing and mood-brightening effect. It has been tried in patients with depression.

Modafinil should be taken strictly as advised by the doctor. It can be taken with or without food. Tablets should be swallowed whole with water.

Yes, Modafinil may cause diarrhea. However, diarrhea and constipation both are equally common side effects associated with this medicine. Other common side effects related to gastrointestinal tract include abdominal pain, nausea, dry mouth, diarrhoea and indigestion.

Modafinil not only has a waking effect (helps in reducing sleepiness) but is also known for its memory-enhancing effects. It has been used in patients with Alzheimer's disease, age-related memory decline and cognitive impairment in schizophrenia.

No, do not stop taking Modafinil on your own without consulting your doctor. Sudden discontinuation of medicine may reduce the effect and with this your sleepiness may also return. Continue taking this medicine for the time recommended by your doctor, except when you experience serious side effects.

It is usually not recommended for long-term use. Studies have shown that long-term use of Modafinil can damage the memory. It also has abuse potential. In addition, its prolonged use can induce stress response (especially if you are misusing and not getting good enough sleep and remaining wakeful for consecutive days). It can also affect your immunity which may make you prone to infection.

Modafinil has abuse potential if used for longer periods. Usually, patients with a history of alcoholism and drug abuse are more likely to become addicted to Modafinil. These patients should be carefully monitored and observed for signs of misuse or abuse (drug seeking behavior).

Modafinil is a prescription medicine and should be taken only as prescribed by the doctor. It may cause serious side effects (e.g., a serious rash or a serious allergic reaction) that may affect your liver or blood cells. Seek immediate medical help on the occurrence of any such side effect as it can endanger life.