ANASEDŽ is supplied as a sterile solution. Each mL contains xylazine hydrochloride equivalent to 20 mg base activity, methylparaben 0.9 mg, propylparaben 0.1 mg, and water for injection. pH adjusted with citric acid and sodium citrate Indications: Xylazine should be used in dogs and cats when it is desirable to produce a state of sedation accompanied by a shorter period of analgesia. Xylazine has been used successfully as follows: 1. Diagnostic procedures - examination of mouth and ears, abdominal palpation, rectal palpation, vaginal examination, catheterization of the bladder and radiographic examinations of the head and extremities. 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 the handling of fractious animals. 6. Major surgical procedures: a. Used as a pre-anesthetic to general anesthesia. b. Used in conjunction with local anesthetics

Administer
1. Dosage: Intravenous - 0.5 mL/20 lbs body weight (0.5 mg/lb, or 1.1 mg/kg). Intramuscular or subcutaneous - 1.0 mL/20 lbs body weight (1.0 mg/lb or 2.2 mg/kg). In large dogs (over 50 lbs) a dosage of 0.5 mg/lb administered intramuscularly may provide sufficient sedation and/or analgesia for most procedures. Since vomiting may occur (see side effects), fasting for 6-24 hours prior to the use of xylazine may reduce the incidence; the I.V. route results in the least vomiting. Following the injection of xylazine, 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. Pre-anesthetic to local anesthesia: Xylazine at the recommended dosages can be used in conjunction with local anesthetics, such as procaine or lidocaine. 3. Pre-anesthetic to general anesthesia: Xylazine, 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, 1/3 to ˝ of the calculated dosage of the barbiturates will be needed to produce a surgical plane of anesthesia. Postanesthetic or emergence excitement has not been observed in animals pre-anesthetized with xylazine. Xylazine has been used successfully as a pre-anesthetic agent for pentobarbital sodium, thiopental sodium, thiamylal sodium, nitrous oxide, ether, halothane and methoxyflurane anesthesia

Caution
Precaution(s): Protect from heat. Do not store over 30°C (86°F). Caution(s): Federal law restricts this drug to use by or on the order of a licensed veterinarian. Clinical results with xylazine have not revealed any detrimental effects when the compound is administered to pregnant dogs or cats. However, until more definitive studies are completed, xylazine is not recommended for use in these animals. Careful consideration should be given before administering to dogs or cats with significantly depressed respiration, severe pathologic heart disease, advanced liver or kidney disease, severe endotoxic or traumatic shock and stress conditions such as extreme heat, cold, or fatigue. Analgesic effect is variable, and depth should be carefully assayed prior to surgical/clinical procedures. In spite of sedation, the practitioner and handlers should proceed with caution since defense reactions may not be diminished. Do not use xylazine in conjunction with tranquilizers. Since an additive effect results from the use of xylazine 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. Studies have shown negligible evidence of tissue irritation, however, following the perivascular injection of xylazine. Bradycardia and an arrhythmia in the form of incomplete atrioventricular block have been reported following xylazine administration. Although clinically the importance of this effect is questioned, a standard dose of atropine given prior to or following xylazine will greatly decrease the incidence. While sedation usually lasts from 1 to 2 hours, recovery periods in excess of 4 to 5 hours have been reported in dogs and cats.