Tenex Dosage

Generic name: guanfacine (oral route)
Drug class: Antiadrenergic agents, centrally acting

Medically reviewed by  A Ras MD

 

 Recommended Adult Dosing

Dosage forms:  TAB: 1 mg, 2 mg

HTN

[0.5-2 mg PO qhs]
Start: 1 mg PO qhs, may incr. to 2 mg PO qhs after 3-4wk; Max: 3 mg/day; Info: taper dose over 4-7 days to D/C

Opioid withdrawal

[3-4 mg/day PO divided tid]
Info: taper dose over 4-7 days to D/C

Migraine headache prophylaxis

[1 mg PO qd]
Info: taper dose over 4-7 days to D/C

Tourette syndrome

[0.5-2 mg PO bid]
Start: 0.5 mg PO qd, titrate slowly; Max: 4 mg/day; Info: taper dose over 4-7 days to D/C

Renal dosing

[no adjustment]
renal impairment: no adjustment
HD/PD: no adjustment; no supplement

Hepatic dosing

[not defined]
hepatic impairment: caution advised

 

SRC: NLM .