The present invention relates to solid dosage forms of oleyl phosphocholine (C18:1-PC), or OlPC, for oral administration. Further, the present invention relates to methods for the preparation of the present solid dosage forms and the use thereof as a medicament and especially a medicament for treatment of parasitic diseases,such as leishmaniasis, chagas and malaria, and cancer both in humans and animals.Specifically, the present invention relates to a solid dosage form comprising:6 to 25 weight % of the solid dosage form oleylphosphocholine；20 to 35 weight% of the solid dosage form lactose；35 to 50 weight % of the solid dosage form cellulose；5 to 20 weight% of the solid dosage form croscarmellose；1 to 10 weight% of the solid dosage form hydroxypropylmethyl cellulose； and0.05 to 1 weight% of the solid dosage form of a lubricant.
