The present invention relates to a solid pharmaceutical product provided in the form of a suppository which comprises a photosensitiser which is a 5-ALA ester of general formula I, or a pharmaceutically acceptable salt thereof: R22N-CH2COCH2-CH2CO-OR1 (I)(whereinR1 represents a substituted or unsubstituted, straight-chained, branched or cyclic alkyl group; andeach R2 independently represents a hydrogen atom);and at least one pharmaceutically acceptable carrier or excipient which is a hard fat or a mixture of hard fat and additives.The pharmaceutical product may be used in the photodynamic treatment of cancer, and infections associated with cancer, and in the treatment of non-cancerous conditions, in particular in treating cancerous or non-cancerous conditions in the female reproductive system, for example cervical cancer and infections caused by the human papillomavirus.