dryclox® DC

dryclox DC Dry Cow Intramammary Suspension Milk withholding period 30 days dry plus 8 milkings after calving. When to Use dryclox® DC dryclox® DC has a relatively short milk withholding period (30 days) and so is ideal for use in cows/herds who are expecting to have a dry period of 5-7 weeks, when longer acting antibiotics are inappropriate, but where the broad antibacterial spectrum of two synergistic antibiotics (cloxacillin and ampicillin) is desired.

A5092 RVM

Active Constituents:

Cloxacillin (as benzathine salt) 500mg and ampicillin (as the trihydrate) 250mg as a long-acting suspension in each 4.5g intra-mammary injector. Available in bins containing 300 x 4.5g injectors.

Prevention of mastitis in cattle caused by bacteria sensitive to cloxacillin and/or ampicillin. For use in dairy cows at the point of drying off, i.e. immediately after the last milking of the lactation in order to treat existing mastitis and to provide protection against further infections during the dry period.


For intramammary use at drying off only. Thoroughly clean and disinfect the teat immediately after the final milking of lactation. Taking aseptic precautions, carefully introduce the contents of 1 injector into each teat, at least 30 days before calving. If treatment is required during the dry period, lactating cow products should be used. Teat spray after infusion.

Withholding Times:

MEAT: Cows producing meat or offal for human consumption must not be sold for slaughter either during treatment or within 21 days of the last treatment. If cows calve before the meat withholding time has elapsed, then the calf should not be submitted for slaughter at least until the cow has become eligible for slaughter, and only after being fed milk suitable for bobby calves for at least 7 days. MILK: For 30 days after treatment and then the milk from the first 8 milkings (4 days) after calving must be discarded. When a cow, which has been treated at drying off, calves less than 30 days after this treatment, the milk should be kept out of the bulk milk for human consumption until a full 30 days from the treatment date has elapsed, plus an extra 8 milkings. Providing the cow has calved after the '30 day treatment to calving interval', milk from the first 8 milkings after calving can be fed to bobby calves. For further information refer to the current NZVA guidelines.