Anticatarhal or Anticatarrhal: How To spell?
The word Anticatarhal is misspelled against Anticatarrhal, a noun meaning "An anticatarrhal remedy."
Anticatarrhal has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings anticata & hal which should not be misspelled with single 'R'
Wrong Spelling:  anticata-r-hal  Correct Spelling:  anticata-rr-hal 
Find more wrongly spelled words of Anticatarrhal to spell it well.