brownish urine

Dark-cloloured urine
Aetiology—pathologic Hematin, dipyrrole—from unstable haemoglobin—homogentisic acid, melanin, myoglobin, porphyrin, myoglobin,
Aetiology—nonpathologic/physiological Aloin, beets, cascara, chloroquine, cresol, drugs—azo gantricin, methylene blue—aniline dyes, fuschin, menses, iron, metronidazole, niridazole, nitrofurantoin, rhubarb, salol, methoxazole, sulfonamides

Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

brownish urine

Urology Dark urine due to excretion of various substances, which can be 'physiological'—beets, drugs–azo gantricin, methylene blue, aniline dyes, fuschin, menses, or 'pathologic'–dipyrrole–from unstable Hb, RBCs, Hb, homogentisic acid, melanin, myoglobin, porphyrin

McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.