What is the [3 H] paroxetine with a [3 H] CFT less than 3.93, an S ÷ D greater than 1891, and a [3H] nizoxetine of 299 (180)?
CREATE TABLE "pharmacotherapy_for_cocaine_abuse" (
  "3_h_cft" real,
  "3_h_nisoxetine" text,
  "3_h_paroxetine" text,
  "n_d" real,
  "s_d" real
);
SELECT "3_h_paroxetine" FROM "pharmacotherapy_for_cocaine_abuse" WHERE "3_h_cft"<3.93 AND "s_d">1891 AND "3_h_nisoxetine"='299 (180)';