Selgian 4 mg Dosage and administration For oral administration to dogs. The dose rate is 0.5 mg/kg/day (-) selegiline hydrochloride in a single administration. Dog weight in kg Number of tablets ≥1.5 <3 ¼ ≥3 <5 ½ ≥5 <7 ¾ ≥7 <9 1 ≥9 <11 1-¼ ≥11 <13 1-½ ≥13 <15 1-¾ ≥15 <17 2 For dogs weighing more than 17 kg, the use of Selgian® 10 mg or Selgian® 20 mg is advisable in order to reduce the number of tablets to be administered. The treatment should be continued until the clinical condition is stable. The minimum treatment period recommended is 2 months, based on the clinical trials results: The treatment period was 2-3 months for 20% of the dogs. The treatment period was 4-5 months for 50% of the dogs. The treatment period was 6-7 months for 20% of the dogs. The treatment period was >7 months for 10% of the dogs. The treatment can be stopped suddenly without gradual dose reductions.