Is vicks a word in Scrabble?

Vicks is not considered official Scrabble word in standard Scrabble dictionaries because it is proper noun and brand name for Vicks VapoRub and cough drops, and proper nouns are not allowed in Scrabble. Official Scrabble word lists like TWL and SOWPODS do not include Vicks as valid word. However, vick could potentially be valid if defined as slang, but Vicks with capital V is brand name and not allowed. Some informal house rules might allow it, but in official tournament Scrabble, Vicks would be challenged and ruled invalid. If you try to play Vicks, you would be playing proper noun which is against rules. The word vicks might be confused with vics or other words, but Vicks itself is brand. So in official Scrabble, Vicks is not a word, though vick without s might be considered slang in some dictionaries but still questionable. To be safe, do not play Vicks in Scrabble tournament, choose alternative words like kick with v replaced.