Urine Discolouration

Question 1

What urine color change can be caused by dantron-containing preparations (e.g., co-danthramer, co-danthrusate), and what are they used for?

Answer 1

Red – Laxative used in palliative care.

Question 2

Which laxative can cause red or yellow urine?

Answer 2

Senna – Laxative

Question 3

Which H2 receptor antagonist can cause green or blue urine?

Answer 3

Cimetidine – Used to reduce stomach acid in GERD, ulcers, and Zollinger-Ellison syndrome.

Question 4

What urine color change is associated with sulfasalazine, and what condition is it used for?

Answer 4

Yellow-orange – Used for inflammatory bowel disease (IBD) and rheumatoid arthritis.

Question 5

Which anticoagulant can cause pink or orange urine?

Answer 5

Phenindione – Used to prevent blood clots.

Question 6

Which diuretic-containing preparations can cause blue urine in some lights?

Answer 6

Triamterene-containing preparations (e.g., co-triamterzide, Frusene) – Used for hypertension and edema.

Question 7

What urine color change can indometacin cause, and what is it used for?

Answer 7

Green/blue – NSAID used for pain and inflammation in arthritis and gout.

Question 8

Which muscle relaxant can cause black, brown, blue, or green urine?

Answer 8

Methocarbamol – Used for muscle spasms.

Question 9

What color can promethazine turn urine, and what is it prescribed for?

Answer 9

Green/blue – Used for nausea, allergies, and motion sickness.

Question 10

What urine color change can be caused by phenytoin, and what is its indication?

Answer 10

Brown/pink – Antiepileptic drug (AED) used to treat seizures.

Question 11

Which antipsychotic can cause red urine?

Answer 11

Chlorpromazine – Used for schizophrenia and nausea.

Question 12

Which tricyclic antidepressant can cause green or blue urine?

Answer 12

Amitriptyline – Used for depression, neuropathic pain, and migraines.

Question 13

What urine color changes can levodopa-containing preparations (e.g., co-beneldopa, co-careldopa) cause, and what are they used for?

Answer 13

Reddish/darker in color – Used in Parkinson’s disease.

Question 14

Which COMT inhibitor can cause reddish-brown urine, and what is it prescribed for?

Answer 14

Entacapone – Used in Parkinson’s disease.

Question 15

What urine color change is associated with tolcapone, and what is its indication?

Answer 15

More yellow – Used in Parkinson’s disease.

Question 16

Which analgesic can cause pink urine?

Answer 16

Nefopam – Used for moderate to severe pain.

Question 17

Which antibiotic used for leprosy can cause red urine?

Answer 17

Clofazimine – Used for leprosy.

Question 18

What color can nitrofurantoin turn urine, and what is it prescribed for?

Answer 18

Yellow/brown – Used for urinary tract infections (UTIs).

Question 19

What urine color change can metronidazole cause, and what infections is it used to treat?

Answer 19

Used for anaerobic bacterial and protozoal infections.

Question 20

Which antibiotics can cause orange-red urine, and what are they used for?

Answer 20

Rifabutin and Rifampicin – Used for tuberculosis and bacterial infections.

Question 21

Which antibiotic can cause reddish urine, and what is its indication?

Answer 21

Rifaximin – Used for traveler’s diarrhea and hepatic encephalopathy.

Question 22

What color change in urine is associated with mepacrine, and what is it used for?

Answer 22

Yellow – Used for malaria and lupus.

Question 23

Which antimalarial can cause dark brown urine?

Answer 23

Chloroquine – Used for malaria and autoimmune conditions.

Question 24

Which iron chelator can cause reddish-brown urine, and what is it prescribed for?

Answer 24

Deferiprone – Used for iron overload conditions (thalassemia, hemochromatosis).

Question 25

What urine color change is associated with idebenone, and what is its indication?

Answer 25

Reddish-brown – Used for mitochondrial disorders like Leber’s hereditary optic neuropathy (LHON).

Question 26

Which vitamin group can cause bright yellow urine?

Answer 26

B-vitamins – Used for metabolism support and deficiency treatment.

Question 27

Which chemotherapy drugs can cause pink/red urine 1–2 days after treatment?

Answer 27

Doxorubicin, Daunorubicin, Idarubicin – Used for various cancers.

Question 28

Which chemotherapy drug can cause blue-green urine for 1–2 days after administration?

Answer 28

Mitoxantrone – Used for multiple sclerosis (MS) and certain cancers.

Question 29

Black/Brown/Blue/Green

Answer 29

Methocarbamol – Muscle relaxant

Question 30

Blue

Answer 30

Triamterene-containing preparations (e.g., co-triamterzide, Frusene) – Diuretics for hypertension and edema (blue in some lights)

Question 31

Blue/Green

Answer 31

Cimetidine – H2 receptor antagonist for acid reflux Indometacin – NSAID for pain and inflammation Promethazine – Antihistamine for allergies and nausea Amitriptyline – Tricyclic antidepressant Mitoxantrone – Chemotherapy for MS and cancer (1-2 days after administration)

Question 32

Brown

Answer 32

Metronidazole – Antibiotic for anaerobic infections Chloroquine – Antimalarial and autoimmune therapy

Question 33

Brown/Pink

Answer 33

Phenytoin – Antiepileptic

Question 34

Dark Brown

Answer 34

Chloroquine – Antimalarial and autoimmune therapy

Question 35

More Yellow

Answer 35

Tolcapone – Used in Parkinson’s disease

Question 36

Orange-Red

Answer 36

Rifabutin – Antibiotic for tuberculosis and infections Rifampicin – Antibiotic for tuberculosis

Question 37

Pink

Answer 37

Nefopam – Analgesic for moderate to severe pain

Question 38

Pink/Orange

Answer 38

Phenindione – Anticoagulant

Question 39

Pink/Red (1-2 days after treatment)

Answer 39

Doxorubicin – Chemotherapy for cancer Daunorubicin – Chemotherapy for leukemia Idarubicin – Chemotherapy for leukemia

Question 40

Reddish

Answer 40

Rifaximin – Antibiotic for traveler’s diarrhea and hepatic encephalopathy

Question 41

Reddish-Brown

Answer 41

Entacapone – COMT inhibitor for Parkinson’s disease Deferiprone – Iron chelator for thalassemia and hemochromatosis Idebenone – Used for mitochondrial disorders

Question 42

Reddish/Darker

Answer 42

Levodopa-containing preparations (e.g., co-beneldopa, co-careldopa) – Used for Parkinson’s disease

Question 43

Red

Answer 43

Dantron-containing preparations (e.g., co-danthramer, co-danthrusate) – Laxative in palliative care Chlorpromazine – Antipsychotic Clofazimine – Antibiotic for leprosy

Question 44

Red/Yellow

Answer 44

Senna – Laxative

Question 45

Yellow

Answer 45

Mepacrine – Antimalarial and lupus treatment B-vitamins – Nutritional supplement

Question 46

Yellow/Brown

Answer 46

Nitrofurantoin – Antibiotic for UTIs

Question 47

Yellow-Orange

Answer 47

Sulfasalazine – Used for IBD and rheumatoid arthritis