Mercaptopurine Side Effects by Likelihood and Severity

COMMON side effects

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If experienced, these tend to have a Severe expression

• A Reduction In The Body's Resistance To Infection
• A Yellowing Of The Eyes Or Skin From Buildup Of Bilirubin Called Jaundice
• An Infection
• Anemia
• Blockage Of Normal Bile Flow
• Decreased Blood Platelets
• Low Levels Of A Type Of White Blood Cell Called Neutrophils
• Low Levels Of White Blood Cells

If experienced, these tend to have a Less Severe expression

• A Feeling Of General Discomfort Called Malaise
• A Skin Rash
• Decreased Appetite
• Diarrhea
• Nausea
• Vomiting

INFREQUENT side effects

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If experienced, these tend to have a Severe expression

• Abnormal Liver Function Tests
• High Amount Of Bilirubin In The Blood
• Increased Uric Acid In The Body Resulting In Kidney Disease
• Stomach Or Intestinal Ulcer
• Stomatitis, A Condition With Painful Swelling And Sores Inside The Mouth
• Tumor Lysis Syndrome

If experienced, these tend to have a Less Severe expression

• Darkening Of The Skin
• Generalized Weakness
• Hair Loss
• Hives
• Low Sperm Count

RARE side effects

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If experienced, these tend to have a Severe expression

• A Condition Where There Is Formation Of Fibrous Tissue In The Lung Called Pulmonary Fibrosis
• A Decreased Number Of Lymphocytes In The Blood
• Abnormally Increased Pressure In The Veins Of The Liver
• Cancer In The Lining Of The Uterus
• Hemophagocytic Lymphohistiocytosis, A Condition Where The Body Makes Too Many Activated Immune Cells
• Hepatosplenic T-Cell Lymphoma
• Kaposi's Sarcoma
• Liver Tissue Death
• Malignant Melanoma, A Type Of Skin Cancer
• Overactive Macrophage Immune Cells
• Pancreatitis

If experienced, these tend to have a Less Severe expression

• A Fever As A Result Of Taking The Medication
• Basal Cell Carcinoma Of The Skin
• Cancer Of The Squamous Cells In The Skin
• Increased Sensitivity Of The Skin To The Sun
• Low Blood Sugar