Scopolamine Patch (Transderm Scop): What It Is and How It's Used

Educational summary · drug class: Anticholinergic / antimuscarinic agent (belladonna alkaloid), transdermal · last reviewed 2026-06-29

The scopolamine (hyoscine) transdermal patch is an anticholinergic medicine worn behind the ear that releases medicine slowly over about 3 days to help prevent the nausea and vomiting of motion sickness. The label directs applying it at least 4 hours before the effect is needed, and it can take up to about 6 hours to work fully. In the US it is prescription-only; status differs by country. It carries a serious heat-related warning and is not for everyone.

Not medical advice. This page is for general educational and informational purposes only. It is not medical advice and is not a substitute for the advice of a qualified healthcare professional. Dizzout is not a medical provider — we are not doctors or pharmacists. The information here is a general summary drawn from sources such as the FDA-approved label and other public health resources, and it may not reflect the most current changes; the official product label is the authoritative source. Whether any medicine is right for you, and how much to take, are individual decisions that depend on your health, age, and other medicines. We do not provide dosing instructions — always read the product label and follow its directions. Talk to your doctor or pharmacist before starting, stopping, or changing any medication, and never disregard or delay professional medical advice because of something you read here. If you think you may have a medical emergency, contact a doctor or your local emergency number immediately.

What it is

Scopolamine, also called hyoscine, is an anticholinergic (antimuscarinic) belladonna alkaloid. The transdermal patch (Transderm Scop in the US; Scopoderm TTS in the UK and EU) is applied to a hairless area of skin behind one ear and releases medicine slowly over roughly 3 days. In the US the patch is prescription-only. In the UK it may be available from a pharmacist, though some supply contexts treat it as prescription-only, so confirm locally. (Oral hyoscine tablets such as Kwells are a separate product.)

Availability: Prescription-only (Rx) in the US; status varies by country (e.g., pharmacist-supplied in some UK contexts). Legal status, brand names, and availability vary by country — check what applies where you live.

How it may help with motion sickness

Scopolamine blocks acetylcholine at muscarinic receptors. For motion sickness it is thought to act on the inner ear's balance (vestibular) system and the brain regions involved in nausea and vomiting, reducing the signals that trigger motion-induced nausea and vomiting. The NHS describes it as working 'by affecting your inner ear and your brain to control vomiting.' The patch delivers the medicine gradually through the skin.

General timing

According to the US FDA/DailyMed label, the patch is applied to skin behind one ear at least 4 hours before the effect is needed (often stated as at least 4 hours before travel), and for longer trips a new patch is applied behind the other ear. UK product information similarly directs applying it several hours ahead, often the evening before. This is general label timing only. We do not provide dosing instructions — follow the product leaflet and the advice of your doctor or pharmacist.

We don't provide dosing instructions. The exact amount, schedule, and whether it suits you are individual decisions — read the product label and follow its directions, and ask a doctor or pharmacist.

Common side effects

Sources such as the product label commonly list:

Dry mouth (the most common effect)
Drowsiness
Blurred vision
Dilated pupils (which can affect one eye if you touch the patch and then your eye)
Dizziness
Disorientation
Constipation
Reduced sweating or changes in sweating

Who should check with a doctor or pharmacist first

Should not be used by people with angle-closure (narrow-angle) glaucoma or a known allergy to scopolamine or other belladonna alkaloids (US label contraindications).
Heat warning: the FDA has warned the patch can raise body temperature and cause heat-related complications, most often reported in children 17 and under and adults 60 and older; avoid external heat and excessive heat exposure.
Children: US safety and effectiveness in children are not established; the UK Scopoderm patch is licensed only for ages 10 and older. Confirm age suitability with a clinician or pharmacist.
Older adults: higher risk of CNS effects such as confusion; some guidance advises caution or avoidance in adults 65+.
Do not drive or operate machinery until you know it does not cause drowsiness, blurred vision, or dizziness.
Avoid alcohol, which can add to side effects.
Pregnancy and breastfeeding: discuss with a clinician; scopolamine passes into breast milk and the label notes specific cautions.
May interact with other CNS depressants and anticholinergic medicines and can delay absorption of oral medicines; tell a clinician or pharmacist about all your medicines.
Wash your hands after handling or removing the patch to keep medicine out of your eyes; remove before an MRI.

Frequently asked questions

How long does one scopolamine patch last?+

A single patch is formulated to deliver scopolamine over about 3 days (roughly 72 hours). For longer use, the label directs applying a new patch behind the other ear. Follow the product leaflet and your clinician's instructions.

How long before travel is the scopolamine patch applied?+

The US label directs applying it at least 4 hours before the effect is needed, and the NHS notes it can take up to about 6 hours to work fully, so it is often applied the evening before. We don't give dosing instructions — follow the leaflet or ask a pharmacist.

Is the scopolamine patch available without a prescription?+

In the US the patch is prescription-only. In some countries, such as the UK, it may be available from a pharmacist, though supply rules vary. Always confirm availability and suitability locally.

Who should be cautious with the scopolamine patch?+

People with narrow-angle glaucoma or a belladonna-alkaloid allergy should not use it. Children, older adults, and people exposed to heat need particular caution because of an FDA heat-related warning. Talk to a doctor or pharmacist.

Sources

This page is for general educational and informational purposes only. It is not medical advice and is not a substitute for the advice of a qualified healthcare professional. Dizzout is not a medical provider — we are not doctors or pharmacists. The information here is a general summary drawn from sources such as the FDA-approved label and other public health resources, and it may not reflect the most current changes; the official product label is the authoritative source. Whether any medicine is right for you, and how much to take, are individual decisions that depend on your health, age, and other medicines. We do not provide dosing instructions — always read the product label and follow its directions. Talk to your doctor or pharmacist before starting, stopping, or changing any medication, and never disregard or delay professional medical advice because of something you read here. If you think you may have a medical emergency, contact a doctor or your local emergency number immediately.