In the old days, people used to have Rosemary ( Rosmarinus officinalis ) infused in wine or in grain gin. One used 1 part fresh leaves to 9 parts white wine for example. After fourteen days the whole was filtered so that only the liquid remained and one had a wonderful medicine against edema. Rosemary was also used for stomach aches. Of Rosmarinus officinalis today the gemmo D1 is used for fatigue. This is a glycerin macerate available from Boiron. Dosage: 15 drops 2 to 3 times a day. Rosemary tea also has a stimulating effect.
Of course it is important to first have a proper diagnosis made by a doctor. Because abnormal and prolonged fatigue can be the result of many possible causes. With self-medication, you always have the chance of masking a larger underlying problem; and valuable time could be lost dealing with more serious problems.
Another special remedy if you suffer from abnormal fatigue and difficulty concentrating is Panax UE from Fytobell. This ultrasonic extract contains special ingredients that can give a big boost to the vitality and capabilities of the nervous system. Three to four times daily 25 drops. Do not use after 6 pm as it may affect falling asleep.