9246
In case no . 2 , the pathogenic mechanism seemed to be persistent light reaction preceded by systemic photoallergy , as he had taken mequitazine for 6 months , and there were strong positive photopatch test results with immediate erythema reaction , cross - reaction to promethazine , decreased MED to both UVA and UVB , and persistence of the photosensitivity over a 3-year follow - up period after discontinuation of the mequitazine .
 cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, promethazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, promethazine; erythema, mequitazine; erythema, mequitazine; erythema, promethazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, promethazine
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: adverse effect 
Text: {0} 
Answer:
 cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, mequitazine; cross - reaction to promethazine, promethazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, mequitazine; decreased MED to both UVA and UVB, promethazine; erythema, mequitazine; erythema, mequitazine; erythema, promethazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, mequitazine; persistence of the photosensitivity, promethazine