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Royaldox 50%  


Doxycycline is a broad spectrum Antibacterial from Tetracycline group . It produces its antibacterial effect by

binding reversibly to 30s ribosomal subunit of the organism resulting in inhibition of microbial protein synthesis.

Doxycycline is active against Gram + ve bacteria & Gram – ve bacteria including E. coli& Pasteurella spp.

as well as Mycoplasma spp.


Each 1 gm contains:

Doxycycline Hyclate …………………………………………… 554.60 mg

(Eq. to Doxycycline base 500 mg)

Target species:

Broiler chickens.


It is used for treatment of:

Broiler chickens: CRD (Chronic Respiratory Disease) caused by Mycoplasma gallisepticum

Dosage & Route of administration:

Route of administration: orally via drinking water.

For whole product:

Broiler chickens: 40 mg of the product / kg b. wt. per day for 3 – 5 days.

(Eq. to 400 mg of the product / liter drinking water). 

Warning& Precaution:

Never add acid to the medicated drinking water.

Contra – Indication:
  • Not to be used with penicillin’s& aminoglycosides because it interferes with them.
  • Not to be used in layers producing eggs for human consumption.
  • Not to be used in dairy animals producing milk for human consumption,
Side Effects:

No side effects at recommended dose.

Withdrawal time:

Meat: Broiler chickens: 10


Stored at temperature not exceeding 30ْ c, in dry place and to be used immediately after opening & reconstituting.