Cannabis (Marijuana) Allergy

On Friday March 2, 2018 at the World Allergy Congress it was revealed that Cannabis (Marijuana) is a new allergen, reported to occur in about 10% of people exposed, 33% of people who have used and 7% of regular users.  We expect this to increase as usage increases.  Symptoms include cutaneous, respiratory, and potentially life-threatening anaphylactic reactions.  Latex, tobacco, wine and beer may cross react with cannabis.  There also was reported from Europe that there is also an oral-cannabis reaction which may include reactions to walnut, peach, apple, tomato, banana, hazelnut, peanut, wheat, tangerine and orange thought to be mediated by lipid transfer factor.

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