Rompun 100 mg/mL Injectable (Canada)This page contains information on Rompun 100 mg/mL Injectable for veterinary use.
The information provided typically includes the following:
- Rompun 100 mg/mL Injectable Indications
- Warnings and cautions for Rompun 100 mg/mL Injectable
- Direction and dosage information for Rompun 100 mg/mL Injectable
Rompun 100 mg/mL InjectableThis treatment applies to the following species:
(xylazine sterile injection)
Sedative and Analgesic
For Use In Horses Only
VETERINARY USE ONLY
Rompun® (xylazine) is supplied in 50 mL multiple-dose vials as a sterile solution.
Each mL contains 100 mg Rompun® (xylazine base equivalent), 0.9 mg methylparaben, 0.1 mg propylparaben, sterile water; citric acid and sodium citrate for pH adjustment to 5.5 ± 0.3.
xylazine 2(2,6-Dimethylphenylamino)-4H-5,6-dihydro-1,3 thiazine hydrochloride
(equivalent to 10% base)
Rompun 100 mg/mL Injectable Indications
Rompun® should be used in horses when it is desirable to produce a state of sedation accompanied by a shorter period of analgesia. It has been used successfully as follows:
1. Diagnostic procedures - oral and ophthalmic examinations, abdominal palpation, rectal palpation, vaginal examination, catheterization of the bladder and radiographic examinations.
2. Orthopedic procedures, such as application of casting materials and splints.
3. Dental procedures.
4. Minor surgical procedures of short duration such as debridement, removal of cutaneous neoplasms and suturing of lacerations.
5. To calm and facilitate handling of fractious animals.
6. Therapeutic medication for sedation and relief of pain following injury or surgery.
7. Major surgical procedures:
a. When used as a preanesthetic to general anesthesia.
b. When used in conjunction with local anesthetics.
Dosage and Administration
1. Dosage: Horses
Intravenously - 0.5 mL/45 kg body weight (Equivalent to 1.1 mg/kg or 0.5 mg/lb)
Intramuscularly - 1.0 mL/45 kg body weight (Equivalent to 2.2 mg/kg or 1.0 mg/lb)
Following injection of Rompun®, the animal should be allowed to rest quietly until the full effect has been reached. These dosages produce sedation which is usually maintained for 1 to 2 hours and analgesia which lasts for 15 to 30 minutes.
2. Preanesthetic to Local Anesthesia: Rompun® at the recommended dosages can be used in conjunction with local anesthetics such as procaine or lidocaine.
3. Preanesthetic to General Anesthesia: Rompun®, at the recommended dosage rates, produces an additive effect to central nervous system depressants such as pentobarbital sodium, thiopental sodium and thiamylal sodium. Therefore, the dosage of such compounds should be reduced and administered to the desired effect. In general, only 1/3 to 1/2 of the calculated dosage of the barbiturates will be needed to produce a surgical plane of anesthesia. Post anesthetic or emergence excitement has not been observed in animals preanesthetized with Rompun®. Rompun® has been used successfully as a preanesthetic agent for pentobarbital sodium, thiopental sodium, thiamylal sodium, nitrous oxide, ether, halothane, and methoxyflurane anesthesia.
Do not use Rompun® in conjunction with tranquilizers.
Careful consideration should be given before administering to horses with significantly depressed respiration, severe pathologic heart disease, advanced liver or kidney disease, severe endotoxic or traumatic shock.
Since an additive effect results from the use of Rompun® and the barbiturate compounds, it should be used with caution with these central nervous system depressants. Products known to produce respiratory depression or apnea, such as thiamylal sodium, should be given at a reduced dosage, and, when injected intravenously, should be administered SLOWLY. When intravenous administration is desired, avoid perivascular injection in order to achieve the desired effect.
Intracarotid Arterial Injection Should Be Avoided. As with many compounds, including tranquilizers, immediate violent seizures followed by collapse may result from inadvertent administration into the carotid artery. Although the reaction with Rompun® is usually transient and recovery may be rapid and complete, special care should be taken to assure that the needle is in the jugular vein rather than the carotid artery.
Bradycardia and an arrhythmia in the form of incomplete atrioventricular block have been reported following Rompun® administration. Although clinically the importance of this effect is questioned, a standard dose of atropine given prior to or following Rompun® will greatly decrease the incidence.
Following the use of Rompun®, veterinarians and attendants should continue to use care and appropriate animal handling techniques, since conscious animals, although sedated, are capable of inflicting personal injury.
THIS DRUG IS NOT TO BE ADMINISTERED TO HORSES THAT ARE TO BE SLAUGHTERED FOR USE IN FOOD. This drug is for use in horses only.
Keep out of reach of children. Do not eat, drink or smoke while handling the veterinary drug product. Avoid skin and eye contact. For veterinary use only.
Xylazine is an alpha2-adrenergic agonist with sedative, some analgesic and muscle relaxant properties. Symptoms after absorption may include dose-dependent respiratory depression, bradycardia, hypotension, a dry mouth, and hyperglycemia. Ventricular arrhythmias have also been reported. Strictly avoid self-injection, oral intake and any contact with skin, eyes or mucosa. In the case of accidental contact, wash exposed skin or eyes abundantly with water. If symptoms occur, seek medical advice. In the case of accidental oral intake or self-injection, seek the advice of a physician and show the package insert but DO NOT DRIVE.
If pregnant women handle the product, special caution should be observed not to self-inject as uterine contractions and decreased fetal blood pressure may occur after accidental systemic exposure.
Dispose the unused drug or waste materials in accordance with the Provincial/Municipal guidelines.
Rompun® used at recommended dosage levels may occasionally cause slight muscle tremors, bradycardia with partial A-V heart block and a reduced respiratory rate. Movement in response to sharp auditory stimuli may be observed.
Following repeated intramuscular injection at the same site, a swelling may occur and such swelling may persist for several weeks.
Rompun® has been tolerated in horses at 10 times the recommended dose. However, doses of this magnitude produced muscle tremors and long periods of sedation with careful surveillance necessary during the recovery period.
Rompun® is a potent sedative and analgesic as well as muscle-relaxant. Its sedative and analgesic activity is related to central nervous system depression. Its muscle-relaxant effect is based on inhibition of the intraneural transmission of impulses in the central nervous system. The principal pharmacological activities develop within 10 to 15 minutes after intramuscular injection and within 3 to 5 minutes following intravenous administration.
A sleeplike state, the depth of which is dose-dependent, is usually maintained for 1 to 2 hours, while analgesia lasts from 15 to 30 minutes. The centrally-acting muscle relaxant effect causes relaxation of the skeletal musculature, complementing sedation and analgesia. In animals under the influence of Rompun®, the respiratory rate is reduced as in natural sleep. Following treatment with Rompun®, the heart rate is decreased and a transient change in the conductivity of the cardiac muscle may occur, as evidenced by a partial atrioventricular block. This resembles the atrioventricular block often observed in normal horses. Although a partial A-V block may occasionally occur following intramuscular injection of Rompun®, the incidence is less than when it is administered intravenously. Intravenous administration of Rompun® causes a transient rise in blood pressure, followed by a slight decrease.
Rompun® has no effect on blood clotting time or other hematologic parameters.
In limited tests, Rompun® has been tolerated in horses at 10 times the recommended dose. However, doses of this magnitude produce muscle tremors and long periods of sedation.
Do not store below 4°C or above 30°C.
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