About granisetron + hrs
Serotonin 5-HT3 receptor blocker
Used for
- Prevents nausea and vomiting caused by chemotherapy.
Usual adult dose
Apply one patch at least 24 hours before chemotherapy; wear for up to seven days.
Common side effects
- Constipation
- Headache
- Application-site reactions
- Abdominal pain
Important warnings
- Do not use to treat nausea that has already started.
- Patches can cause skin reactions; avoid direct sunlight on the covered area.
- Seek urgent care for severe allergic reactions or symptoms of serotonin syndrome.
- Use caution with medicines that affect heart rhythm or serotonin.
Pregnancy
Limited information is available; use during pregnancy only when clearly needed.
Breastfeeding
It is unknown whether granisetron passes into breast milk; breastfeeding safety is not established.
Interactions
- Other medicines that prolong the QT interval may increase heart-rhythm risks.
- Serotonergic medicines may increase the risk of serotonin syndrome.
- Strong CYP3A4 enzyme inducers may reduce granisetron exposure.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.