The simple therapy has proven useful with other syndromes that have perplexed doctors such as Complex Regional Pain Syndrome, a term for unexplained pain.

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To get to your question, the antidepressant potential of ketamine was discovered serendipitously in patients receiving the drug for the treatment of complex regional pain syndrome, or CRPS, a miserable condition characterized by severe pain, swelling and changes in the skin.

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Her 18-year-old son Jermarl Henderson, who has a chromosomal disorder called DiGeorge Syndrome, has had multiple open-heart surgeries and requires intensive, complex therapy, she said.

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