Relexxii Dosage
Generic name: METHYLPHENIDATE HYDROCHLORIDE 45mg
Dosage form: tablet, extended release
Drug class: CNS stimulants
Medically reviewed by Drugs.com. Last updated on May 30, 2024.
2.1 Pretreatment Screening
Prior to treating patients with RELEXXII, assess:
- for the presence of cardiac disease (i.e., perform a careful history, family history of sudden death or ventricular arrhythmia, and physical exam).
- the family history and clinically evaluate patients for motor or verbal tics or Tourette’s syndrome before initiating RELEXXII.
2.2 General Administration Information
Administer RELEXXII orally once daily in the morning with or without food.
Swallow RELEXXII whole with liquid. Do not chew, divide, or crush.
2.3 Dosage Recommendations for Patients New to Methylphenidate
Table 1 includes the starting dosage and dosage recommendations for RELEXXII in pediatric patients 6 to 17 years and adults who are not currently taking methylphenidate or other stimulants.
Table 1: Dosage Recommendations for RELEXXII in Pediatric Patients 6 to 17 years and Adults
Patient Population |
RELEXXII Recommended Starting Dosage |
RELEXXII Dosage Range |
Pediatric patients 6 to 12 years |
18 mg once daily |
18 mg to 54 mg once daily |
13 to 17 years |
18 mg once daily |
18 mg to 72 mg once daily (not to exceed 2 mg/kg/day) |
Adults 18 (up to 65 years) |
18 mg or 36 mg once daily |
18 mg to 72 mg once daily |
2.4 Dosage Recommendations for Patients Currently Using Methylphenidate
The recommended starting dosage of RELEXXII for patients who are currently taking methylphenidate twice daily or three times daily at doses of 10 mg to 60 mg daily is provided in Table 2.
Table 2: Recommended Starting Dosage when Converting from Methylphenidate Regimens to RELEXXII
Current Methylphenidate Daily Dosage |
Recommended Starting Dosage of RELEXXII |
5 mg methylphenidate twice daily or three times daily |
18 mg once daily in the morning |
10 mg methylphenidate twice daily or three times daily |
36 mg once daily in the morning |
15 mg methylphenidate twice daily or three times daily |
54 mg once daily in the morning |
20 mg methylphenidate twice daily or three times daily |
72 mg once daily in the morning |
2.5 Dose Titration
Doses may be increased in 18 mg increments at weekly intervals for patients who have not achieved clinical response at a lower dose. Daily dosages above 54 mg in pediatric patients 6 to 12 years and above 72 mg in pediatric patients 13 to 17 years have not been studied and are not recommended. Daily dosages above 72 mg are not recommended in adults.
Dosage strengths of 27 mg, 45 mg, and 63 mg are available for additional titration options based on clinical response.
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