Sunscreens are used to protect the skin from the harmful
effects of the sun. They help to prevent sunburn and premature aging (such
as wrinkles, leathery skin). Sunscreens also help to decrease the risk of
skin cancer and also of sunburn-like skin reactions (sun sensitivity)
caused by some medications (including tetracyclines, sulfa drugs,
phenothiazines such as chlorpromazine).
The active ingredients in sunscreens work either by
absorbing the sun's ultraviolet (UV) radiation, preventing it from reaching
the deeper layers of the skin, or by reflecting the
radiation.
Wearing sunscreen does not mean that you can stay out
longer in the sun. Sunscreens cannot protect against all of the sun's
radiation.
There are various types of sunscreens available in many
forms (such as cream, lotion, gel, stick, spray, lip balm). See the Notes
section for information about selecting a sunscreen.
Sunscreens are for use on the skin only. Follow all
directions on the product package. If you have any questions, ask your
doctor or pharmacist.
Apply sunscreen generously to all exposed skin 30
minutes before sun exposure. As a general guide, use 1 ounce (30 grams) to
cover your entire body. Reapply the sunscreen after swimming or sweating or
drying off with a towel or if it has rubbed off. If you are outside for
long periods, reapply sunscreen every 2 hours. If you are using the lip
balm form, apply to the lip area only.
The spray form is flammable. If using the spray, avoid
smoking when applying this medication and do not use or store it near heat
or open flame.
When applying sunscreen to the face, be careful to avoid
contact with the eyes. If the sunscreen gets in your eyes, rinse thoroughly
with water.
Use cautiously or avoid use on irritated
skin.
Do not use sunscreen on infants younger than 6 months
unless the doctor directs you to do so. It is best for infants to stay out
of the sun and wear protective clothing (such as hats, long sleeves/pants)
when outdoors.
If you develop a serious sunburn, or if you think you
may have a serious medical problem, get medical help right
away.
Some sunscreen products (such as those containing
aminobenzoic acid or para-aminobenzoic acid/PABA) may stain
clothing.
Some ingredients of sunscreens can cause the skin to
become more sensitive. If a sunscreen causes redness or irritation, wash it
off and stop using it. Talk to your doctor or pharmacist about using
another sunscreen product with different ingredients.
If your doctor has directed you to use this medication,
remember that your doctor has judged that the benefit to you is greater
than the risk of side effects. Many people using this medication do not
have serious side effects.
A very serious allergic reaction to this drug is rare.
However, get medical help right away if you notice any symptoms of a
serious allergic reaction, including:
- rash
- itching/swelling (especially of the face/tongue/throat)
- severe dizziness
- trouble breathing
This is not a complete list of possible side effects. If
you notice other effects not listed above, contact your doctor or
pharmacist.
In the US - Call your doctor for medical advice about side effects.
You may report side effects to FDA at 1-800-FDA-1088 or at
www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about
side effects. You may report side effects to Health Canada at
1-866-234-2345.
Before using a sunscreen, tell your doctor or pharmacist
if you are allergic to any of its ingredients (such as aminobenzoic
acid/PABA); or to some types of anesthetic drugs (such as benzocaine,
tetracaine); or to sulfa drugs; or if you have any other allergies. This
product may contain inactive ingredients, which can cause allergic
reactions or other problems. Talk to your pharmacist for more
details.
Drug interactions may change how your medications work
or increase your risk for serious side effects. This document does not
contain all possible drug interactions. Keep a list of all the products you
use (including prescription/nonprescription drugs and herbal products) and
share it with your doctor and pharmacist. Do not start, stop, or change the
dosage of any medicines without your doctor's approval.
This medicine may be harmful if swallowed. If someone
has overdosed and has serious symptoms such as passing out or trouble
breathing, call 911. Otherwise, call a poison control center right away. US
residents can call 1-800-222-1222. Canada residents can call
1-844-764-7669.
The sun produces two types of ultraviolet (UV)
radiation, UVA and UVB. UVA radiation causes skin damage, premature aging,
and skin reactions to medications, soaps, cosmetics, and other chemicals.
UVB radiation causes sunburn. Both UVA and UVB radiation increase your risk
of skin cancer. Most sunscreens protect against UVB radiation, but you
should use a sunscreen with both UVA and UVB protection (broad-spectrum
coverage). Products that protect against UVA include ingredients such as
avobenzone, octocrylene, titanium dioxide, zinc oxide, and benzophenones
such as oxybenzone. Ask your doctor or pharmacist if you have questions
about selecting a product.
Sun Protection Factor (SPF) is a rating that tells how
much protection a product provides against sunburn. The higher the number,
the greater the protection. An SPF of at least 15 is recommended. Products
with SPF 30 provide high protection against sunburn. The FDA states that
products with SPF above 30 provide a benefit that is not much greater than
SPF 30 products.
Water-resistant products provide protection for up to 40
minutes of water activity or sweating. Very water-resistant products
protect for up to 80 minutes. Reapply sunscreen as often as
necessary.
Remember that water, sand, and snow reflect the sun. You
should protect yourself with sunscreen when in these surroundings. Apply
sunscreen even on cloudy days because the sun's radiation is still present.
In addition to sunscreen, wear protective clothing (such as hat, long
sleeves/pants, sunglasses) when outdoors, and stay in the shade when
possible. Avoid prolonged sun exposure, especially between 10 AM to 4 PM
when the sun's radiation is strongest.
Apply sunscreens generously and often when
outdoors.
Store at room temperature away from heat and light.
Refer to the storage information printed on the package. Do not use a
product after the expiration date on the container. If there is no
expiration date, it is recommended that you replace sunscreens every year
because over time they may lose the ability to protect you from the sun. If
you have any questions about storage, ask your pharmacist. Keep all
medications away from children and pets.
Do not flush medications down the toilet or pour them
into a drain unless instructed to do so. Properly discard this product when
it is expired or no longer needed. Consult your pharmacist or local waste
disposal company.