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RETIN-A (tretinoin gel 0.1%)
is proven to reduce the severity of acne vulgaris in effected patients.
Seen most commonly in adolescents, but also seen in older patients
as well, true acne involves the formation of comedones (large deep
seeded pus filled pimples) that resolve slowly leaving behind a
deep scar. RETIN-A can significantly reduce the severity
of these lesions.
HOW DOES RETIN-A WORK?
Evidence suggests that RETIN-A
acts primarily by modifying the abnormal keratinization (formation
of the superficial layer of skin) located around hair follicles.
Comedones (large deep seeded pus filled pimples) form in follicles
with an excess of keratinized superficial skin cells. RETIN-A
promotes the detachment of these excess cells and the enhanced shedding
of these cells from the follicular base. Through this action, comedo
contents are emptied and the formation of new comedones is significantly
reduced.
HOW TO USE THIS MEDICATION:
Apply a thin layer to affected areas
at bedtime. Use a gauze pad or cotton swab to apply the liquid.
Wash your hands immediately after use. Using this medication more
frequently or in excessive amounts does not improve the results,
but may increase side effects. Avoid applying near the eyes, mouth,
or open cuts since this medication can irritate sensitive skin.
Acne may appear to worsen when the medication is first used; continue
therapy. It may take three to six weeks before the full benefits
of this medication are seen.
HOW EFFECTIVE IS RETIN-A?
In a number of different clinical
studies RETIN-A was significantly superior to a control gel
in decreasing comedo count. Taken together approximately 25% of
patients achieved superior results with the use of this medication.
RETIN-A AND ROGAINE?
Yes, when applied topically to the
scalp RETIN-A can induce hair regrowth and significantly
augment the activity of ROGAINE.
It is postulated that this effect
is due to increased absorption of ROGAINE through the scalp by an
alteration of the stratum corneum (superficial layer) barrier. One
study demonstrated that 0.05% RETIN-A tripled the absorption
of ROGAINE locally over effected areas, when compared with
a control drug.
CAN I USE COSMETICS IF I AM ALSO
USING RETIN-A?
Cosmetics may be used, but clean
skin thoroughly before applying RETIN-A.
USE DURING PREGNANCY:
RETIN-A is applied to the
skin. Usually, less than 10% of RETIN-A passes into the mother's
bloodstream, and even less reaches the baby. Broken skin, using
more than is needed on an area, or use on a large area will cause
more of the RETIN-A to pass through the skin. In general,
the less RETIN-A that is used on the mother's skin, the
less likely there will be risks to the baby.
Several studies have tried to find
out the effects of RETIN-A on pregnancy. These studies have
not found that babies whose mothers used RETIN-A during pregnancy
are any more likely to have birth defects than babies whose mothers
did not use RETIN-A.
Nonetheless, it may be best to reserve
RETIN-A use during pregnancy for only the most severe cases
of Acne Vulgaris. Even then, it should be used with extreme caution.
SIDE EFFECTS:
Immediately after applying, the skin
may feel warm or mild stinging or redness may occur. Some peeling
of the skin may occur. These effects should subside as your skin
adjusts to the medication. If they persist or become bothersome,
stop the medication. This medicine may also increase sun sensitivity.
RETIN-A may also cause itchiness and scaling of the skin.
This can sometimes be very extreme depending on the individual.
Most people will experience some itching or scaling if too much
RETIN-A is applied.
CAUTIONS:
This medication can increase sensitivity
to sunlight, wind and cold. Avoid prolonged exposure to the sun
and sunlamps. Wear protective clothing and use an effective sunscreen.
This medication should be used during pregnancy only if clearly
needed. It is not known if RETIN-A appears in breast milk.
Consult your doctor before breast-feeding. Use mild soap when washing
your face. Do not wash face excessively. Abrasive soaps, cleansers,
medicated creams or lotions can increase skin irritation. Use other
acne preparations with caution while using RETIN-A.
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