Interações medicamentosas
Clarithromycin + Dihydroergotamine intranasal
Gravidade: Contraindicada
Clarithromycin and Dihydroergotamine intranasal: contraindicated interaction.
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Resumo
Even with intranasal use, systemic exposure to dihydroergotamine is sufficient that strong CYP3A4 inhibition by clarithromycin can cause ergotism, with severe vasospasm and ischemia of extremities and the CNS.
O que esta interação significa em palavras simples
Clarithromycin and Dihydroergotamine intranasal are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two.
Por que acontece
Clarithromycin inhibits CYP3A4 and decreases clearance of dihydroergotamine.
O que fazer
Do not coadminister; use an alternative antibiotic such as azithromycin and advise patients to report cold, numb or painful extremities immediately.
O que perguntar ao farmacêutico
- Is there an alternative to one of these two medicines for me?
- If both are essential, who is monitoring me and how often?
- Which symptoms mean I should stop and seek help straight away?
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Outras interações de Clarithromycin
- Astemizole + Clarithromycin Contraindicada
- Avanafil + Clarithromycin Contraindicada
- Cisapride + Clarithromycin Contraindicada
- Clarithromycin + Colchicine Contraindicada
- Clarithromycin + Conivaptan Contraindicada
- Clarithromycin + Dihydroergotamine Contraindicada
Perguntas frequentes
Can I take Clarithromycin with Dihydroergotamine intranasal?
MediHelp rates the interaction as contraindicated. Clarithromycin and Dihydroergotamine intranasal are not normally used together. Taking them at the same time is expected to cause harm or make one of them unsafe, so a different medicine is usually chosen for one of the two. Even with intranasal use, systemic exposure to dihydroergotamine is sufficient that strong CYP3A4 inhibition by clarithromycin can cause ergotism, with severe vasospasm and ischemia of extremities and the CNS.
How serious is the interaction between Clarithromycin and Dihydroergotamine intranasal?
MediHelp rates it contraindicated, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not coadminister; use an alternative antibiotic such as azithromycin and advise patients to report cold, numb or painful extremities immediately.
What other medicines interact with Clarithromycin?
MediHelp also lists interactions of Clarithromycin with, for example, Astemizole, Avanafil, Cisapride. The full list is on the Clarithromycin page.
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