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. 2013 Feb 18;2(1):58–72. doi: 10.3390/antibiotics2010058

Table 1.

Antibacterial activity of synthetic phenothiazines by in vitro screening.

Phenothiazine MIC µg/mL Bacteriostatic/ Bactericidal
Gram +ve Gram –ve
CPZ 10–50 25–100 Bacteriostatic for Gm −ve, Bactericidal for Gm +ve
Pr 10–50 10–100 Bacteriostatic
Pz 50–200 100–200 Bacteriostatic
Pc 25–100 50–400 Bacteriostatic
Md 10–100 25–200 Bactericidal
Fz 10–100 10–100 Bactericidal
Tm 10–100 10–100 Bactericidal
Tf 10–100 25–200 Bactericidal
Tp 2–50 2–100 Bactericidal
Tz 32–64 100–800 Bacteriostatic for Gm –ve, Bactericidal for Gm +ve
50–800
Fp 5–50 10–100 Bacteriostatic

Please note: The bactericidal effect can be reached with multiple of the MICs. CPZ, chlorpromazine; Pr, promazine; Pz, promethazine; Pc, prochlorperazine; Md, methdilazine; Fz, fluphenazine; Tm, trimeprazine; Tf, trifluoperazine; Tp, triflupromazine; Tz, thioridazine; Fp, flupenthixol.