November 27, 2015
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(ingenol mebutate) Topical Gel


Picato® (ingenol mebutate) gel, 0.015% or 0.05% is a clear colorless gel for topical administration, which contains the active substance ingenol mebutate, an inducer of cell death.

The chemical name of ingenol mebutate is: 2-Butenoic acid, 2-methyl-, (1aR,2S,5R,5aS,6S,8aS,9R,10aR)-1a,2,5,5a,6,9,10,10a-octahydro5,5a-dihydroxy-4-(hydroxymethyl)-1,1,7,9-tetramethyl-11-oxo-1H-2,8a-methanocyclopenta [a]cyclopropa[e]cyclodecen-6-yl ester, (2Z) - or (1aR,2S,5R,5aS,6S,8aS,9R,10aR)-5,5a-dihydroxy-4-(hydroxymethyl)-1,1,7,9-tetramethyl-11oxo-1a,2,5,5a,6,9,10,10a-octahydro-1H 2,8a-methanocyclopenta[a]cyclopropa[e]cyclodecen-6yl (2Z) 2 methylbut-2-enoate.

The molecular formula is C25H34O6 and molecular weight is 430.5. Ingenol mebutate is represented by the following structural formula:

PICATO® (ingenol mebutate) Structural Formula Illustration

Ingenol mebutate is a white to pale yellow crystalline powder.

Picato® gel, 0.015% and 0.05% contains 150 mcg and 500 mcg of ingenol mebutate, respectively in each gram of gel consisting of isopropyl alcohol, hydroxyethyl cellulose, citric acid monohydrate, sodium citrate, benzyl alcohol and purified water.

Picato® gel is clear colorless gel and supplied in unit dose laminate tubes, for single use, containing a nominal fill weight of 0.47 g, with a deliverable weight of 0.25 g. The tubes should be discarded after single use.

What are the possible side effects of ingenol topical (Picato)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Wash off the medicine and call your doctor at once if you have a serious skin reaction such as severe itching, burning, oozing, blisters, redness, swelling, or skin changes where the medication is applied.

Stop using ingenol topical and call your doctor at once if you have a serious side effect such as:

  • severe eye pain or swelling;
  • puffy eyes; or
  • drooping...

Read All Potential Side Effects and See Pictures of Picato »

Last reviewed on RxList: 10/15/2015
This monograph has been modified to include the generic and brand name in many instances.

Report Problems to the Food and Drug Administration


You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

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