Release of histamine from mast cells?

Which of the following drugs can cause hypotension by release of histamine from mast cells ?

    1. Aspirin
    1. Procaine
    1. Morphine
    1. Sulfadiazine

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Basic drugs like morphine, d-TC and amphotericin B etc. act as histamine liberators and can cause acute reaction leading to itching and hypotension.