The -mab suffix tells you a medication is a monoclonal antibody, a lab-made protein that targets a specific antigen. You’ll see it in names like adalimumab, rituximab, and trastuzumab.
What the -mab Suffix Means
-mab stands for monoclonal antibody. These are biologic medications, usually given by injection or infusion, used for autoimmune disease, cancer, inflammatory conditions, transplant care, and some infections. The “-mab” ending is a naming clue, not a complete therapeutic classification by itself; the full generic name helps identify the product and target.
Why the -mab Suffix Matters for PTCB
For the PTCB exam, suffix recognition helps you connect generic names to drug classes, recognize biologics, and spot special handling needs. Pharmacy technicians also verify storage, route, and administration supplies. Many -mab products require refrigeration, but not all; follow the manufacturer’s labeling and your pharmacy policy. Some are on the NIOSH hazardous drug list, so apply USP <800> if required, and use USP <797> when compounding sterile preparations.
Practical -mab Application
If you see pembrolizumab on a prescription, the -mab suffix prompts you to check the protocol, storage, and infusion supplies rather than treat it like a routine oral tablet. For adalimumab, verify pens or syringes, refrigeration, and patient counseling points. Always confirm the exact product, strength, and route—biologics often have multiple formulations.
Common -mab Mistake and Pro Tip
⚠️ A common mistake is assuming every -mab is interchangeable, stored the same way, or handled as a hazardous drug just because it ends in “-mab.” 💡 Pro tip: check the full generic name, label, and pharmacy SOP; for biologics, do not substitute based on suffix alone—follow state law and pharmacy policy, and document storage excursions promptly.
-mab Quick Reference
- Suffix: -mab = monoclonal antibody
- Common examples: adalimumab, rituximab, trastuzumab
- Route: often injection or infusion; verify labeling
- Storage: refrigeration common but product-specific
- Handling: check NIOSH/USP <800> and USP <797> when applicable
Related Concepts
Review biosimilars, USP <800> hazardous drugs, and generic name suffixes to strengthen your medication safety knowledge.