Remember that your doctor has prescribed this medicine because he or she has judged that the benefit to you is greater than the risk of side effects. Bit here it suggestes by a non medical person.So,better it is avoid.
If you want to increase ur work efficasy then better use other methods rather than medicine.
For continues action please visit a psychologist, who can help you to increase ur focus.
Health Tips
Here i gave sone tips which also increase your over all mental stamina.
1.Morning walk or gym or workout regularly.
2.sleep 8hrs at night.
3.avoid too much using of mobile or pc.
4.avoid mobile pc 1 hr before sleep.
5.Take proper protein supplementation.
6.Keep your mind empty,because in a empty pot u can pour tea but in empty mind u can think or focus more.