Drilldown: Medicines
Medicines > fda max 
:
3600 mg/day; off-label doses higher are common but bioavailability saturates well below this or
5 mg/d or
TID per eye
:
3600 mg/day; off-label doses higher are common but bioavailability saturates well below this or
5 mg/d or
TID per eye Use the filters below to narrow your results.
generic:
brand:
classes:
[[:Category:5-alpha-reductase_inhibitors|5α-reductase inhibitor]] (1) ·
[[:Category:Alpha-2_agonists|Alpha-2 adrenergic agonist]] (1) ·
[[:Category:Androgen_modulators|Androgen modulator]] (1) ·
[[:Category:Anticonvulsants|Anticonvulsant]] (1) ·
[[:Category:Antihyperglycemic_agents|Antihyperglycemic agent]] (1) ·
[[:Category:BPH_treatments|Benign prostatic hyperplasia treatment]] (1) ·
[[:Category:Carbonic_anhydrase_inhibitors|Carbonic anhydrase inhibitor (topical)]] (1) ·
[[:Category:DPP-4_inhibitors|DPP-4 inhibitor]] (1) ·
[[:Category:Gabapentinoids|Gabapentinoid]] (1) ·
[[:Category:Glaucoma_medications|Glaucoma medication]] (2) ·
[[:Category:Incretin_modulators|Incretin pathway modulator]] (1) ·
[[:Category:Neuropathic pain medicines|Neuropathic pain medicine]] (1) ·
[[:Category:Ocular_hypotensive_agents|Ocular hypotensive agent]] (2)
mechanism:
uses:
'"`UNIQ--vote-00000021-QINU`"', '"`UNIQ--vote-00000022-QINU`"', '"`UNIQ--vote-00000023-QINU`"', '"`UNIQ--vote-00000024-QINU`"', '"`UNIQ--vote-00000025-QINU`"', '"`UNIQ--vote-00000026-QINU`"', '"`UNIQ--vote-00000027-QINU`"', '"`UNIQ--vote-00000028-QINU`"' (1) ·
'"`UNIQ--vote-0000052E-QINU`"', '"`UNIQ--vote-0000052F-QINU`"', '"`UNIQ--vote-00000530-QINU`"' (1) ·
'"`UNIQ--vote-00000B08-QINU`"', '"`UNIQ--vote-00000B09-QINU`"' (1) ·
'"`UNIQ--vote-000010CE-QINU`"', '"`UNIQ--vote-000010CF-QINU`"', '"`UNIQ--vote-000010D0-QINU`"' (1) ·
'"`UNIQ--vote-0000117B-QINU`"' (1)
starting dose:
1 drop in affected eye(s) TID (monotherapy); BID with timolol (Cosopt) (1) ·
300 mg PO at bedtime night 1, 300 mg BID day 2, 300 mg TID day 3; titrate to clinical effect, commonly 1800-3600 mg/day divided TID (1) ·
5 mg PO daily for BPH; 1 mg PO daily for androgenetic alopecia (1) ·
5 mg PO once daily (no renal dose adjustment, unlike sitagliptin) (1) ·
Ophthalmic 1 drop in affected eye(s) TID; topical Mirvaso 0.33% gel applied to face daily (1)
preparations:
0.1%, 0.15%, 0.2% ophthalmic solutions; 0.33% topical gel; combinations with timolol (Combigan) and brinzolamide (Simbrinza) (1) ·
1 mg, 5 mg tablets (1) ·
2% ophthalmic solution (Trusopt); 2%/0.5% fixed combination with timolol (Cosopt, Cosopt PF) (1) ·
5 mg tablets; combination with metformin (1) ·
Capsules 100, 300, 400 mg; tablets 600, 800 mg; oral solution 250 mg/5 mL; Gralise ER tablets 300, 600 mg (once-daily); Horizant ER tablets 300, 600 mg (gabapentin enacarbil, an inactive parent compound metabolized to gabapentin in vivo) (1)
fda max: (Click arrow to add another value)
routes:
onset:
1-2 weeks for neuropathic pain and anxiolytic effect; anticonvulsant effect at therapeutic plasma level (1) ·
BPH symptom improvement at 3-6 months; prostate volume reduction over 6-12 months; hair regrowth at 6-12 months (1) ·
IOP lowering at 1 hour; max at 2-3 hours (1) ·
IOP lowering at 2 hours; max at 4 hours (1) ·
Postprandial glucose effect within days; HbA1c by 12 weeks (1)
duration:
halflife:
5-7 hours'"`UNIQ--ref-00000029-QINU`"' (1) ·
~12 hours (effective); terminal much longer'"`UNIQ--ref-0000117C-QINU`"' (1) ·
~3 hours'"`UNIQ--ref-000010D1-QINU`"' (1) ·
~4 months in erythrocytes (carbonic anhydrase binding in red cells; not relevant to topical IOP duration)'"`UNIQ--ref-00000B0A-QINU`"' (1) ·
~5-6 hours in young men, ~8 hours in elderly'"`UNIQ--ref-00000531-QINU`"' (1)
bioavailability:
'''Saturable''' via the LAT-1 amino-acid transporter, producing nonlinear pharmacokinetics: ~60% at 300 mg single dose, falling to ~35% at 1200 mg single dose'"`UNIQ--ref-0000002A-QINU`"' (1) ·
Topical with measurable systemic absorption (small CA inhibition observed clinically with chronic use)'"`UNIQ--ref-00000B0B-QINU`"' (1) ·
Topical; clinically meaningful systemic absorption can produce systemic α2 effects (somnolence, hypotension), especially in children'"`UNIQ--ref-000010D2-QINU`"' (1) ·
~30% (oral)'"`UNIQ--ref-0000117D-QINU`"' (1) ·
~63% (oral)'"`UNIQ--ref-00000532-QINU`"' (1)
pregnancy:
'''Pregnant individuals should not handle crushed/broken tablets''' (skin absorption risk); can cause hypospadias in male fetus. Not used in pregnancy.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited data.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited data; switch to insulin where feasible.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited data; weigh against alternatives.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1) ·
Limited human data; some signal for cardiac malformations and developmental delay but confounded by maternal disease and polytherapy.<sup class="pcp-cn" title="This claim needs a citation.">[[[Pharmacopedia:Citation needed|citation needed]]]</sup> (1)
Showing below up to 5 results in range #1 to #5.