July 23, 2016
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Skin Exposure Paste

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Skin Exposure Paste

Discontinued Warning IconPlease Note: This Brand Name drug is no longer available in the US.
(Generic versions may still be available.)

How Supplied


SERPACWA is indicated only in conjunction with MOPP gear to reduce or delay the absorption of chemical warfare agents through the skin when SERPACWA is applied prior to exposure. SERPACWA was not tested for protection against chemical warfare agents in humans. SERPACWA was not tested in conjunction with MOPP gear in the presence of a CWA surrogate (see Nonclinical and Clinical Studies Sections). SERPACWA is not intended to be a replacement for or to be used without any portion of the MOPP gear. The ability of SERPACWA to reduce exposure to CWA or CWA surrogates has not been studied beyond 5 hours after application.

SERPACWA should only be used under threat of imminent CWA attack. SERPACWA should not be used in training exercises, due to the potential risk of polymer fume fever (See PRECAUTIONS Section).


Apply the SERPACWA by hand onto the skin until there is a barely noticeable white film layer. Apply the entire contents of the 84-gram package of SERPACWA evenly to the areas of the skin (as outlined in Instructions for Use for Military Personnel below) prior to donning MOPP gear.

Instructions for Use for Military Personnel

This product is intended for use prior to exposure to CWA and only in conjunction with MOPP gear.

The barrier properties of SERPACWA may be reduced if any insect repellents and/or camouflage paints remain on the skin surfaces to which SERPACWA is applied.

Before you put on the chemical protective overgarment, use a dry towel to wipe off the sweat, insect repellent, camouflage paint, sand or dirt from your skin at the areas shown in the picture below and on the label.

Tear open the packet and squeeze about one third of the pouch into the palm of your hand and rub it evenly around the wrists (site 1), neck (site 2), and boot tops of lower legs (site 3) until it forms a white film which is barely noticeable. Remove the remaining two thirds of the SERPACWA from the pouch and rub it evenly onto your armpits (site 4), groin area (site 5), and waistline (site 6).

After the product is applied, if exposure to CWA is either confirmed or suspected, follow the appropriate protocol for decontamination.

For removal of SERPACWA in the absence of exposure to CWA, scrub the sites with a dry towel, or if possible, with a cloth using both soap and water. For personnel who smoke, hands should have no visible traces of SERPACWA prior to handling of smoking products. If smoking products have an unusual or unpleasant taste during smoking, this may indicate that the products have been contaminated with SERPACWA. Personnel are advised to cease smoking and discard such potentially-contaminated products. Even in the absence of an unusual or unpleasant taste, the smoking product may still be contaminated, so smoking should be avoided.

Clothing or other materials exposed to SERPACWA, including SERPACWA packaging, should not be destroyed by burning, because of the release of toxic fumes.


SERPACWA is supplied as an olive drab (green) pouch which contains 84 grams of SERPACWA (sufficient for one application per individual). Store between 20° and 30° C.

CAUTION: For military use only. For external use only. This product, product packaging, and clothing or other materials exposed to SERPACWA should not be destroyed by burning due to the release of toxic fumes. Avoid getting SERPACWA on smoking products. Clean hands thoroughly before handling smoking products. Smoking should be avoided during and after applying SERPACWA.

Store between 20° and 30° C.

Dispensing information as of February 17, 2000. Manufactured for U.S. Army by: McKesson BioServices 14665 Rothgeb Drive Rockville, MD 20850

This monograph has been modified to include the generic and brand name in many instances.

Last reviewed on RxList: 3/9/2009

How Supplied

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