相互作用
Nitroglycerin + Sildenafil
重症度: 併用禁忌
Nitroglycerin and Sildenafil: contraindicated interaction.
最終更新日 出典: US FDA label
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概要
Sildenafil greatly potentiates the vasodilator effect of nitrates, which can produce profound, prolonged hypotension, syncope, myocardial ischemia or infarction. Patients with coronary disease who use nitrates are the typical population at risk. Labeling of both drugs contraindicates the combination.
この相互作用をわかりやすく説明すると
Nitroglycerin and Sildenafil 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.
Nitroglycerin belongs to Cardiovascular; Sildenafil belongs to Genitourinary.
なぜ起こるのか
Nitroglycerin releases nitric oxide to increase cGMP, while sildenafil inhibits PDE5-mediated cGMP breakdown, causing exaggerated vasodilation.
対処法
Do not give nitrates to patients who have taken sildenafil within 24 hours. Patients with chest pain who recently took sildenafil need urgent medical assessment and non-nitrate approaches, and nitrates should be avoided for at least 24 hours after the dose.
薬剤師に尋ねること
- 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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アカウントを作成してPro+トライアルを始めると、NitroglycerinとSildenafilの臨床対応の詳細なアドバイス、追加の注記、エビデンスの詳細、処方全体を対象とした相互作用チェッカーを利用できます。
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
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参考文献
Nitroglycerinのその他の相互作用
Sildenafilのその他の相互作用
よくある質問
Can I take Nitroglycerin with Sildenafil?
MediHelp rates the interaction as contraindicated. Nitroglycerin and Sildenafil 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. Sildenafil greatly potentiates the vasodilator effect of nitrates, which can produce profound, prolonged hypotension, syncope, myocardial ischemia or infarction. Patients with coronary disease who use nitrates are the typical population at risk. Labeling of both drugs contraindicates the combination.
How serious is the interaction between Nitroglycerin and Sildenafil?
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 give nitrates to patients who have taken sildenafil within 24 hours. Patients with chest pain who recently took sildenafil need urgent medical assessment and non-nitrate approaches, and nitrates should be avoided for at least 24 hours after the dose.
What other medicines interact with Nitroglycerin?
MediHelp also lists interactions of Nitroglycerin with, for example, Avanafil, Riociguat, Tadalafil. The full list is on the Nitroglycerin page.
完全なモノグラフ、用量、相互作用チェッカーはMediHelpアプリで
MediHelpアプリで、完全なリファレンスを開き、複数薬剤の相互作用をチェックし、用量ツールを利用できます。
