Zoetis DECTOMAX
By Zoetis
Last reviewed: January 2024
DECTOMAX (doramectin) is Zoetis's broad-spectrum parasiticide for cattle, providing effective control of internal parasites (gastrointestinal roundworms, lungwo
What is DECTOMAX?
DECTOMAX contains doramectin, a macrocyclic lactone antiparasitic produced by Streptomyces avermitilis fermentation. Doramectin is highly effective against both internal and external parasites, with persistent activity that continues working for weeks after administration.
Spectrum of Activity
Internal Parasites (Gastrointestinal):
Internal Parasites (Respiratory):
External Parasites:
Persistent Activity
DECTOMAX provides extended protection:
This persistence is particularly valuable for cattle returning to contaminated pastures after treatment.
Formulation Options
DECTOMAX Injectable: 1 mL per 110 lb body weight, SQ injection
DECTOMAX Pour-On: 1 mL per 22 lb body weight, along backline
Key Features
- Broad Spectrum: Internal nematodes, lungworm, grubs, lice, and mange
- Persistent Activity: Protection continues 3+ weeks post-treatment
- Two Formulations: Injectable or pour-on based on preference
- Inhibited Larvae Control: Effective against dormant Ostertagia
- Single Treatment: One dose provides comprehensive coverage
Advanced Features
- Macrocyclic Lactone Class: Proven mechanism for parasite control
- Fat-Soluble Depot: Slow release from injection site extends activity
- Grub Migration Timing: Strategic timing prevents grub migration reactions
- Combination Potential: Can be used with other products when needed
Ideal For
Competitive Advantages
What sets DECTOMAX apart from alternatives:
- DECTOMAX advantages: 1. **Extended Persistence**: Longer protection than many competitors 2. **Inhibited Larvae**: Addresses dormant parasites others may miss 3. **Dual Formulation**: Injectable or pour-on flexibility 4. **Zoetis Quality**: Consistent manufacturing standards 5. **Grub + Lice + Worm**: Complete external and internal coverage
Pricing Information
Here is the pricing information for DECTOMAX:
Pros & Considerations
- Broad spectrum—one product for multiple parasites
- Persistent activity for ongoing protection
- Injectable or pour-on options
- Effective against inhibited larvae
- Well-established efficacy
- Not for use in lactating dairy cattle (no milk tolerance)
- Slaughter withdrawal required (35 days injectable, 45 days pour-on)
- Injectable may cause temporary injection site swelling
- Resistance possible in heavily selected populations
- Pour-on less effective in wet/dirty conditions
Implementation & Setup
How to implement DECTOMAX on your dairy operation:
Training & Support
Training and support options available for DECTOMAX:
Evaluation Questions
Key questions to consider when evaluating DECTOMAX:
- 1. When do we currently deworm cattle? 2. Have we done fecal egg counts to assess parasite burden? 3. What parasites are present in our environment (regional history)? 4. Do we have cattle on pasture where reinfection is a concern? 5. Are replacement dairy heifers being treated for parasites? 6. Do we have grub or lice issues in our herd? 7. What is our current parasite control cost per head?