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SELECT 
  cscart_ult_product_descriptions.product_id, 
  cscart_ult_product_descriptions.short_description, 
  IF(
    cscart_ult_product_descriptions.short_description = "", 
    cscart_ult_product_descriptions.full_description, 
    ""
  ) AS full_description, 
  cscart_ult_product_descriptions.meta_keywords, 
  cscart_ult_product_descriptions.meta_description, 
  cscart_ult_product_descriptions.search_words, 
  cscart_ult_product_descriptions.promo_text 
FROM 
  cscart_ult_product_descriptions 
WHERE 
  cscart_ult_product_descriptions.product_id IN (
    74405, 74404, 74403, 74402, 74401, 74400, 
    74399, 74398, 74397, 74396, 74395, 
    74394, 73974, 74268, 74180, 74091, 
    73995, 73744, 74267, 73822, 73690, 
    73601, 74090, 74089, 74088, 74087, 
    74086, 74085, 74084, 74083, 74082, 
    74081, 74080, 74079, 74078, 74077, 
    74076, 74075, 74074, 74073
  ) 
  AND cscart_ult_product_descriptions.company_id = 1 
  AND cscart_ult_product_descriptions.lang_code = 'en'

Query time 0.00047

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	cscart_ult_product_descriptions	ALL	PRIMARY,product_id,company_id				1	Using where