When should I expect the effects of Extra Super Zhewitra to wear off? Home › Forums › Respiratory System › When should I expect the effects of Extra Super Zhewitra to wear off? Tagged: Extra Super Zhewitra benefits, Extra Super Zhewitra dosage This topic has 0 replies, 1 voice, and was last updated 5 months, 3 weeks ago by darrisasd. You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In