Related Experiment Video
Updated: May 22, 2026

Inducement and Evaluation of a Murine Model of Experimental Myopia
Published on: January 22, 2019
Transdermal hyoscine induced unilateral mydriasis
Breffni Hannon1, Valerie Jennings, Marie Twomey
1Palliative Medicine Department, Our Lady's Children's Hospital, Dublin, Ireland. breffnilhannon@yahoo.co.uk
Transdermal scopolamine, used for chemotherapy nausea, can cause unilateral mydriasis (dilated pupil) in teenagers. This case highlights potential ocular side effects of this antiemetic drug delivery system.
Area of Science:
- Pharmacology
- Ophthalmology
- Oncology
Background:
- Transdermal hyoscine hydrobromide (scopolamine) is utilized for managing chemotherapy-induced nausea and vomiting (CINV).
- The transdermal delivery system offers sustained drug release, but potential side effects require consideration.
Observation:
- A case study involving a teenager experiencing unilateral mydriasis (pupil dilation) is presented.
- This ocular side effect occurred after the administration of transdermal scopolamine for CINV.
Findings:
- The study discusses the specific ocular side effects linked to transdermal scopolamine.
- Unilateral mydriasis is identified as a potential adverse event associated with this antiemetic agent and delivery method.
Implications:
- This finding underscores the importance of monitoring for ocular side effects in patients using transdermal scopolamine.
- It suggests a need for further research into the safety profile and optimal use of transdermal hyoscine in adolescent oncology patients.
Related Concept Videos
Direct-Acting Cholinergic Agonists: Pharmacological Actions
Ophthalmic Drug Delivery Systems
Direct-Acting Cholinergic Agonists: Therapeutic Uses
Cholinergic Antagonists: Pharmacokinetics
Cholinergic Antagonists: Pharmacological Actions
Gastrointestinal Effects: Antimuscarinics reduce gut contractions, increase gastric emptying, and slow intestinal transit. They partly inhibit gastric acid secretion...
Cholinergic Antagonists: Therapeutic Uses
Respiratory Tract: Ipratropium, aclidinium, and tiotropium treat asthma, chronic bronchitis, and chronic obstructive pulmonary disease (COPD). They protect against bronchoconstriction caused by irritants like cigarette smoke, sulfur dioxide, and ozone. They also help reduce nasopharyngeal secretions in common...
