Nimbamritadi eranda tailam is a herbal oil Ayurvedic medicine used for the treatment of skin disorders and rheumatoid arthritis. It is made with castor oil base. 
Uses of Nimbamritadi Eranda Tailam:
Excellent in rheumatic and skin ailments.
Good for regular motions, useful in constipation.
Ingredients of Nimbamritadi Eranda Tailam:
Eranda taila (Ricinus communis oil)
Nimba (Azadirachta indica)
Amrita (Tinospora cordifolia)
Vrisha (Adathoda vasica)
Patola (Tricosanthes dioica)
Nidigdhika (Solanum surratens)
Patha (Cyclea peltata)
Vidanga (Embelica ribes)
Suradaru (Cedrus deodara)
Gajopakulya (Scyndapsus officinalis)
Dvikshara
Nagara (Zyngiber officinale)
Nisa (Curcuma longa)
Misi
Chavya (Piper cubeba)
Kusta (Saussurea lappa)
Thejovathi (Celastrus paniculatus)
Maricha (Piper nigrum)
Vatsaka (Holarrhena antidysentrica)
Dipyaka
Agni
Rohini (Picorrhiza kurroa)
Vacha (Acorus calamus)
Manjista (Rubia cordifolia)
Ativisha (Aconitum heterophyllum)
Visha
Yavani (Carum copticum)
Guggulu (Commiphora mukul)
Direction for use of Nimbamritadi castor oil:
Internally- 5-30 ml.
Externally for application over the affected area.
To relieve constipation, it is advised in a dose of 5 ml at night after food. 
For constipation, it is usually advised on alternate days, for a period of 3 – 4 weeks time.
Side effects: 
Seek medical advice before using this product. 
It is best to avoid during diarrhea and dysentery.
It is best to avoid this in all circumstances wherein a person is contra indicated to consume castor oil.
It is best to avoid during pregnancy and in children.
Keep out of reach and sight of children.
Store in a cool dry place.
Shelf life: 3 years from the date of manufacture. Once after opening the bottle, it is best to empty it within 4 months.