Oil is applied to skin diseases, in scabies, stores, and the like cases of eczema have been benefited by applying a mixture of the oil and zinc oxide (1 drachm to 1 ounce of the oil). Internally the oil has sometimes been used as a stomachic and cholagogue in case of dyspepsia with sluggish liver An embrocation made of equal parts of the oil and lemon juice is an application in rheumatism (muscular and articular), I psoriasis, porrigo capitis and pityriasis. Decoction of the leaves is applied as bath or fomentation to rheumatic joints. Leaves are also used in diarrhea and in cough. Juice of the stem, leaves and root is useful similarly.
For destroying worms of foul ulcers and fistulous sores, juice of the root by itself or with that of Neem and Nirgund or the leaves of all of these ground into a paste are used. Juice with coconut milk and lime water well shaken and in obstinate cases with hydnocarpus oil, camphor and sulphur added, is a remedy for gonorrhoea; juice of the root by itself is also internally given in gonorrhoea and urethritis; poultice of the leaves is used in ulcers infested with maggots; and juice of the leaves is useful in flatulency, dyspepsia and diarrhea. Pulp of the seed is and application is asthenic and debilitation conditions.
They are also used very commonly in bronchitis and whooping cough. Young leaves are applied to bleeding piles. Bark is useful internally in bleeding piles. Dried flowers in powder in combination with other ingredients is given as decoction in diabetes to quench thirst. Flowers are used as a remedy for diabetes.Pods are worn round neck in whooping cough. Seeds of Pongamia are powdered after decoction and given as a specific for whooping cough and harassing cough. For infants and young children, dose is form 1 to 5 grains according to age. For those above 12 years, dose is 15 grains. Powder should not be wrapped in paper as paper absorbs it oil. Powder loses efficacy on being kept and should, there fore, be prepared fresh. Used in scorpion-sting.