You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["Disease", "Chemical"].

Please return the output as a JSON object of the format: {"Chemical" : ["Naloxone", ...], "Disease" : ["Hypotensive", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Some central effects of repeated treatment with fluvoxamine. We investigated the effect of repeated treatment with fluvoxamine, a selective serotonin uptake inhibitor, on behavioral effects of dopaminomimetics and methoxamine and on the animal behavior in the "behavioral despair" test. A repeated treatment with fluvoxamine (twice daily for 14 days) potentiated in mice and in rats (weaker) the amphetamine-induced hyperactivity. The hyperactivity induced by nomifensine in mice remained unaffected by fluvoxamine. The stimulation of locomotor activity by intracerebroventricularly administered methoxamine was not affected by repeated treatment with fluvoxamine. Given three times fluvoxamine had no effect on the immobilization time in the "behavioral despair" test in rats. The results indicate that fluvoxamine given repeatedly acts differently than citalopram, another selective serotonin uptake inhibitor, and differs also from other antidepressant drugs.
{"Chemical": ["citalopram", "serotonin", "amphetamine", "nomifensine", "methoxamine", "fluvoxamine"], "Disease": ["hyperactivity"]}