mercaptopurine
PrintTrade Name(s): Purinethol; Mercaptopurine; Purixan | |
Group 1: Antineoplastic Hazardous | AHFS Class: Antineoplastic Agents |
Activity | Gloves | Gown | Eye/Face | Mask | Notes/Instructions |
Dispensing prepackaged formulations |
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Counting/Repackaging tablets or capsules | Recommended if pregnant, breast feeding, or trying to conceive. | If risk of dust inhalation |
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Repackaging oral liquids | If risk of spill or splash | If risk of inhalation |
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Formulation | Gloves | Gown | Eye/Face | Mask | Notes/Instructions |
Tablet or capsule - from unit-dose package | or Recommended if pregnant, breast feeding, or trying to conceive. |
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Liquid - oral or feeding tube | If potential for splash, vomit or spit up |
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Reference: NIOSH 2016, USP <800>
Type of Instance | Gloves | Gown | Mask | Eye/Face | Notes/Instructions |
Receiving undamaged HD shipping container |
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Receiving damaged HD shipping container | If container must be opened | If container must be opened | If container must be opened |
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Spill Cleanup | Large volume | Large volume |
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Reference: USP <800>
Hazardous Pharmaceutical | Trace Chemo | Biohazardous and Sharps |
1. Non-returnable hazardous, chemo and EPA regulated drugs. (Patient specific prescriptions, partially used blister packs, containers with more than 3% medication remaining) 2. Empty bottles or packaging of P-Listed drugs. (Warfarin, nicotine, epinephrine, nitroglycerin, physostigmine) 3. PPE with visible contamination from hazardous drug. | 1. Waste contaminated through contact with chemotherapeutic agents. (Empty vials, IV bags, syringes and tubing) 2. PPE worn while handling hazardous drugs with NO visible contamination. (Gowns, gloves and masks) 3. Used CSTD devices. | 1. All sharps capable of cutting or piercing the skin. (Needles/syringes, broken ampules, lancets) 2. Items contaminated with blood or other potentially infectious materials. (Tubing, bags or dressings containing blood, contaminated waste from isolation patients) |
Dosage Form | Ship to Institution or Pharmacy | Ship to Locations Outside of ODOC |
Tablets and Capsules |
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Liquid, Topical, and Transdermal |
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PPE | Standards |
Shoe Covers |
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Gowns |
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Gloves |
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Face Shields |
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Goggles |
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N95 Masks |
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Removal and Disposal |
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Reference: USP <800>
- Harmful if swallowed.
- Causes skin irritation.
- Causes serious eye irritation.
- May cause respiratory irritation.
- Suspected of causing genetic defects.
- Suspected of damaging fertility or the unborn child
Reference: SDS - Cayman Chemical
Mercaptopurine competes with hypoxanthine and guanine for the enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRTase) and is itself converted to thioinosinic acid (TIMP). TIMP inhibits several reactions that involve inosinic acid (IMP), such as the conversion of IMP to xanthylic acid (XMP) and the conversion of IMP to adenylic acid (AMP) via adenylosuccinate (SAMP). Upon methylation, TIMP forms 6-methylthioinosinate (MTIMP) which inhibits glutamine-5-phosphoribosylpyrophosphate amidotransferase in addition to TIMP. Glutamine-5-phosphoribosylpyrophosphate amidotransferase is the first enzyme unique to the de novo pathway for purine ribonucleotide synthesis. According to experimental findings using radiolabeled mercaptopurine, mercaptopurine may be recovered from the DNA in the form of deoxythioguanosine. In comparison, some mercaptopurine may be converted to nucleotide derivatives of 6-thioguanine (6-TG) via actions of inosinate (IMP) dehydrogenase and xanthylate (XMP) aminase that convert TIMP to thioguanylic acid (TGMP).
Reference: Drug Bank