FAQs

You can view the latest Chemotechnique announcements and updates at this link.

You can access available Chemotechnique resources at this link or by clicking on “Resources” in the top navigation menu.

The back is the preferred site, but if this area of the body has extensive dermatitis or additional surface area is needed, it is acceptable to place the patches on other sites, such as the arms, flanks, lateral abdomen, medial and lateral thighs.

Do not apply haptens on patients recently treated with topical corticosteroids; wait at least 1 week after treatment.

The only medications that may affect results are drugs which suppress the immune system. Although ideally patients would be off of their immunosuppressive medications for a few days prior to and during the week of patch testing, in practice this is sometimes not possible. If the patient is still experiencing their dermatitis while on their immunosuppressive medications, then their skin immune system is capable of responding to the patches and giving a useful result.

A syringe contains 5 ml of hapten preparation and a bottle contains 8 ml.

Approximately 125 – 150 patients/syringe and bottle.

The recommended dose is 25 μl. When applying haptens in petrolatum, dispense a 5 mm string into the IQ Patch Test Chamber (this corresponds to approximately 25 μl or 20 mg). For liquid haptens, the same amount (20-25 μl) is produced by applying a single drop.

Non-volatile haptens can be preloaded for up to two weeks. Preloaded Patch Tests Units must be stored refrigerated in air tight bags.

Volatile substances (acrylates and fragrances) and liquid haptens must not be preloaded, they should be loaded on the day of application to skin.

Yes. Make sure to always put pressure on the applied test unit with the palm of your hand for at least 5 seconds. The heat and pressure will promote better adhesion.

In cases where the skin condition affects adhesion (e.g. oily skin), additional taping can be considered.

The shelf life is generally between 12-30 months for petrolatum based haptens, and 6-12 months for haptens based on aqua or ethanol. The expiration date is clearly marked on the label of each hapten.

Haptens are classified as pharmaceuticals and therefore expired units should be handled as per your organization’s procedure for handling expired drugs.

You can access available Cantharone resources at this link or by clicking on “Resources” in the top navigation menu.

Cantharone Liquid has 0.7% cantharidin. Cantharone Plus has 1% cantharidin plus 2% podophyllin and 30% salicylic acid.

Cantharone Liquid is indicated for common warts, periungual warts, molluscum contagiosum and it can be used starting at age 3.

Cantharone Plus is used for plantar warts, resistant, heavily-keratinized-warts and it can be used starting at age 12.

No, both Cantharone Liquid and Cantharone Plus should be strictly applied by the physician at the clinic.

No, each bottle can be used for multiple patients (up to 60 applications) using a new applicator for each patient.

Use a pointed applicator to extract the Cantharone from the bottle and apply to wart area only (avoiding adjacent normal skin).

Examples of applicators can be tooth pick, wooden end of a cotton swab, fluid transfer pipette, or a thin stirring rod.

Read insert leaflet carefully for safe handling of Cantharone products.

Cantharone Liquid has a 3-year shelf life. Cantharone Plus has a 2-year shelf life.  Once opened for use, immediate closure after application is recommended to prevent drying.

When closing cap, make sure there is no product residue on bottle lip. If product is found on bottle lip, wipe it off with a cotton swab (while wearing gloves).

To minimize the evaporation of the acetone base and the formation of crystals, it is recommended to recap the bottle immediately after use.

When closing cap, make sure there is no product residue on bottle lip.  If product is found on bottle lip, wipe it off with a cotton swab (while wearing gloves).

Only sterile disposable punches and curettes are available on a regular basis. However, reusable punches and curettes can be special ordered and may take a longer time to be delivered.

Please contact us for more details.

14 different sizes are available from 1mm-12mm. Each size is available in a box of 10 or 50 count.  View the Acuderm biopsy punches at this link.

6 different sizes are available. 1mm size is available in cup shape and 2, 3, 4, 5, 7mm are available in loop shape. Each size is available in a box of 10 or 25 count.

View the Acuderm disposable curettes at this link.

You can access available Dormer 211 Skincare and Medicated Shampoo resources at this link or by clicking on “Resources” in the top navigation menu.

Dormer 211 line (excluding the 2 Spécialité products) contains an exclusive hyaluronic acid complex plus additional moisturizers that provide protective, flexible, moisture retaining matrices on the skin. Dormer 211 products are hypoallergenic and fragrance-free.

Dormer 211 formulations are effective on all skin types and conditions.

Hyaluronic acid is a naturally occuring substance that is produced by our body (in our skin, eyes, joints). It is a powerful humectant (moisture retainer) that can hold 1000 times its molecular weight in moisture (water molecules).

In Dormer 211 products hyaluronic acid is used as a complex which forms matrices on the skin that help provide a uniform and longer lasting moisturizing effect.

Yes, products can be safely used on face, hands, and body.

All Dormer 211 products can be used on sensitive skin. In addition, Face Cream, SPF15 and SPF30 have special benefits for sensitive skin.

Dormer 211 Spécialité HyperEmollient has been found beneficial for people having eczema.

Dormer 211 products are safe for use on children. Consult your physician for children younger than 2 years of age.

Yes, Dormer 211 products are available in pharmacies and supermarkets across Canada. Ask your pharmacist. To search for a retail location please visit this link.

The products are also available directly to consumers at Dormer211.com.

We recommend the Dormer211 Spécialité HyperEmollient. It is good for use anywhere on the body (hands, body, face, feet). It is safe for diabetic patients to use it for their foot care and general moisturizing needs.

We recommend the Dormer211 Spécialité Oil-Free Fluid Moisturizer or any of the Dormer211 Face Creams.

No, Dormer211 products are not tested on animals and do not contain any ingredients from animal origin.

Using Z-Plus Shampoo 2 times per week should be sufficient to control dandruff. It is safe to use more frequently if desired.

You may use an additional hair conditioner if desired however, Z-Plus formula has hair conditioner in it.

No. Z-Plus and the active ingredients should only be used on children ages 2 years and older.