Some products, including poison, have expiration date. Some think that if the poison is expired, the poison will not be poisonous. Actually, it is not. Even if it is expired, the expired poison is still poisonous but the grade may be lesser. Furthermore, expired poison may contain more negative consequences when accidentally induced.
That is why you should be careful in taking anything to our body especially to our mouth. Keep out all chemical and injurious substance contents, especially if it is poison, away from children’s reach.