N/a
(Tadalafil)N/A Prescribing Information
- 2.5 mg tablets are yellow, round shaped tablets debossed with ‘ZC1’ on one side and plain on the other side.
- 5 mg tablets are yellow, round shaped tablets debossed with ‘ZC2’ on one side and plain on the other side.
- 10 mg tablets are yellow, round shaped tablets debossed with ‘ZC3’ on one side and plain on the other side.
- 20 mg tablets are yellow, capsule shaped tablets debossed with ‘ZC4’ on one side and plain on the other side.
Evaluation of erectile dysfunction and BPH should include an appropriate medical assessment to identify potential underlying causes, as well as treatment options.
Before prescribing tadalafil tablets, it is important to note the following:
Tadalafil is selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5). Tadalafil has the empirical formula C
22H
19N
3O
4representing a molecular weight of 389.41. The structural formula is:

The chemical designation is pyrazino[1´,2´:1,6]pyrido[3,4-b]indole-1,4-dione, 6-(1,3-benzodioxol-5- yl)-2,3,6,7,12,12a-hexahydro-2-methyl-, (6R,12aR)-. It is a crystalline solid that is practically insoluble in water and very slightly soluble in ethanol.
Tadalafil Tablets, USP are available as round/capsule-shaped tablets for oral administration. Each tablet contains 2.5 mg, 5 mg, 10 mg, or 20 mg of tadalafil and the following inactive ingredients: lactose monohydrate, croscarmellose sodium, sodium lauryl sulfate, hydroxypropyl cellulose, microcrystalline cellulose, magnesium stearate, HPMC 2910/Hypromellose, titanium dioxide, macrogol/PEG, triacetin, iron oxide yellow, iron oxide red.
Tadalafil Tablets, USP are supplied as follows:
Four strengths of tablets are available in different sizes and shapes, and supplied in the following package sizes:
2.5 mg yellow, round shaped tablets debossed with ‘ZC1’ on one side and plain on the other side
Bottles of 30 NDC 35561-254-10
Bottles of 500 NDC 35561-254-13
5 mg yellow, round shaped tablets debossed with ‘ZC2’ on one side and plain on the other side.
Bottles of 30 NDC 35561-255-10
Bottles of 500 NDC 35561-255-13
10 mg yellow, round shaped tablets debossed with ‘ZC3’ on one side and plain on the other side.
Bottles of 30 NDC 35561-256-10
Bottles of 500 NDC 35561-256-13
20 mg yellow, capsule shaped tablets debossed with ‘ZC4’ on one side and plain on the other side.
Bottles of 30 NDC 35561-257-10
Bottles of 500 NDC 35561-257-13