Dihydroergotamine (nasal)
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Boxed warning
WARNING: PERIPHERAL ISCHEMIA FOLLOWING COADMINISTRATION WITH STRONG CYP3A4 INHIBITORS Serious and/or life-threatening peripheral ischemia has been associated with the coadministration of dihydroergotamine with strong CYP3A4 inhibitors. Because CYP3A4 inhibition elevates the serum levels of dihydroergotamine, the risk for vasospasm leading to cerebral ischemia and/or ischemia of the extremities is increased. Hence, concomitant use of TRUDHESA with strong CYP3A4 inhibitors is contraindicated [see Contraindications (4) , Warnings and Precautions (5.1) , and Drug Interactions (7.1) ].
WARNING: PERIPHERAL ISCHEMIA FOLLOWING COADMINISTRATION WITH POTENT CYP3A4 INHIBITORS See full prescribing information for complete boxed warning. Serious and/or life-threatening peripheral ischemia has been associated with the coadministration of dihydroergotamine with strong CYP3A4 inhibitors. Because CYP3A4 inhibition elevates the serum levels of dihydroergotamine, the risk for vasospasm leading to cerebral ischemia and/or ischemia of the extremities is increased. Hence, concomitant use of TRUDHESA with strong CYP3A4 inhibitors is contraindicated. ( 4 , 5.1 , 7.1 )
Dosing in kidney impairment
4 CONTRAINDICATIONS TRUDHESA is contraindicated in patients: with concomitant use of strong CYP3A4 inhibitors, such as protease inhibitors (e.g., ritonavir, nelfinavir, or indinavir), macrolide antibiotics (e.g., erythromycin or clarithromycin), and antifungals (ketoconazole or itraconazole) [see Warnings and Precautions and Drug Interactions ] with ischemic heart disease (angina pectoris, history of myocardial infarction, or documented silent ischemia) or patients who have clinical symptoms or findings consistent with coronary artery vasospasm, including Prinzmetal's variant angina [see Warnings and Precautions ] with uncontrolled hypertension [see Warnings and Precautions ] with peripheral arterial disease with sepsis following vascular surgery with severe hepatic impairment with severe renal impairment with known hypersensitivity to ergot alkaloids with recent use (i.e., within 24 hours) of other 5-HT 1 agonists (e.g., sumatriptan) or ergotamine-containing or ergot-type medications [see Drug Interactions ] with concomitant use of peripheral and central vasoconstrictors because the combination may result in additive or synergistic elevation of blood pressure [see Warnings and Precautions ] Concomitant use of strong CYP3A4 inhibitors Patients with ischemic heart disease or coronary artery vasospasm Patients with uncontrolled hypertension, peripheral arterial diseases, sepsis, following vascular surgery, or severe hepatic or renal impairment Patients with hypersensitivity to ergot alkaloids Concomitant use of other 5-HT 1 agonists (e.g., sumatriptan) or ergotamine-containing or ergot-type medications within 24 hours Concomitant use of peripheral and central vasoconstrictors 5 WARNINGS AND PRECAUTIONS Myocardial Ischemia and/or Infarction, Other Cardiac Adverse Reactions, and Fatalities: In patients with risk factors, consider 1 st dose administration under medical supervision with electrocardiogram. ( 2.2 , 5.2 ) Cerebrovascular Adverse Reactions and Fatalities: Cerebral hemorrhage, subarachnoid hemorrhage and stroke have been reported; discontinue TRUDHESA if suspected.
Preparation and administration
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Important Administration Instructions TRUDHESA is for nasal administration only and must not be injected. TRUDHESA must be assembled prior to use (see Instructions for Use ). Use or discard TRUDHESA within 8 hours once the vial has been opened or the product has been assembled. Prime the assembled TRUDHESA before initial use by releasing 4 sprays.
Use TRUDHESA immediately after priming. Discard TRUDHESA immediately after use. Open and prepare a new TRUDHESA if an additional dose is needed.
Drug interactions
Check dihydroergotamine (nasal) against a medication listLabel text (8 paragraphs)
Beta Blockers/Nicotine: May potentiate/provoke vasoconstriction ( 7.3 , 7.5 ) Selective Serotonin Reuptake Inhibitors: Weakness, hyperreflexia, and incoordination may occur with coadministration. ( 7.6 )
7.1 CYP3A4 Inhibitors There have been rare reports of serious adverse events in connection with the coadministration of intravenous administration of dihydroergotamine and strong CYP3A4 inhibitors, such as protease inhibitors (e.g., ritonavir, nelfinavir, indinavir), macrolide antibiotics (e.g., erythromycin, clarithromycin), and antifungals (e.g., ketoconazole, itraconazole), resulting in vasospasm that led to cerebral ischemia and/or ischemia of the extremities [see Warnings and Precautions (5.1) ]. The use of strong CYP3A4 inhibitors with dihydroergotamine is contraindicated [see Contraindications (4) ] .
Administer moderate CYP3A4 inhibitors (e.g., saquinavir, nefazodone, fluconazole, grapefruit juice, fluoxetine, fluvoxamine, zileuton, clotrimazole) with caution.
7.2 Triptans Triptans (serotonin [5-HT] 1B/1D receptor agonists) have been reported to cause coronary artery vasospasm, and its effect could be additive with TRUDHESA. Therefore, triptans and TRUDHESA should not be taken within 24 hours of each other [see Contraindications (4) ].
7.3 Beta Blockers There have been reports that propranolol may potentiate the vasoconstrictive action of ergotamine by blocking the vasodilating property of epinephrine.
7.4 Vasoconstrictors TRUDHESA is contraindicated for use with peripheral and central vasoconstrictors because the combination may cause synergistic elevation of blood pressure [see Warnings and Precautions (5.5) ].
7.5 Nicotine Nicotine may provoke vasoconstriction in some patients, predisposing to a greater ischemic response to ergot therapy [see Warnings and Precautions (5.1 , 5.5) ].
7.6 Selective Serotonin Reuptake Inhibitors Weakness, hyperreflexia, and incoordination have been reported rarely when 5-HT 1 agonists have been coadministered with selective serotonin reuptake inhibitors (e.g., fluoxetine, fluvoxamine, paroxetine, sertraline).
Contraindications
4 CONTRAINDICATIONS TRUDHESA is contraindicated in patients: with concomitant use of strong CYP3A4 inhibitors, such as protease inhibitors (e.g., ritonavir, nelfinavir, or indinavir), macrolide antibiotics (e.g., erythromycin or clarithromycin), and antifungals (ketoconazole or itraconazole) [see Warnings and Precautions (5.1) and Drug Interactions (7.1) ] with ischemic heart disease (angina pectoris, history of myocardial infarction, or documented silent ischemia) or patients who have clinical symptoms or findings consistent with coronary artery vasospasm, including Prinzmetal's variant angina [see Warnings and Precautions (5.4) ] with uncontrolled hypertension [see Warnings and Precautions (5.5) ] with peripheral arterial disease with sepsis following vascular surgery with severe hepatic impairment with severe renal impairment with known hypersensitivity to ergot alkaloids with recent use (i.e., within 24 hours) of other 5-HT 1 agonists (e.g., sumatriptan) or ergotamine-containing or ergot-type medications [see Drug Interactions (7.2) ] with concomitant use of peripheral and central vasoconstrictors because the combination may result in additive or synergistic elevation of blood pressure [see Warnings and Precautions (5.5) ] Concomitant use of strong CYP3A4 inhibitors ( 4 ) Patients with ischemic heart disease or coronary artery vasospasm ( 4 ) Patients with uncontrolled hypertension, peripheral arterial diseases, sepsis, following vascular surgery, or severe hepatic or renal impairment ( 4 ) Patients with hypersensitivity to ergot alkaloids ( 4 ) Concomitant use of other 5-HT 1 agonists (e.g., sumatriptan) or ergotamine-containing or ergot-type medications within 24 hours ( 4 ) Concomitant use of peripheral and central vasoconstrictors ( 4 )
Pregnancy and lactation
Pregnancy
8.1 Pregnancy Risk Summary Available data from published literature indicate an increased risk of preterm delivery with TRUDHESA use during pregnancy. Avoid use of TRUDHESA during pregnancy [see Warnings and Precautions (5.7) ]. Data collected over decades have shown no increased risk of major birth defects or miscarriage with use of dihydroergotamine mesylate during pregnancy.
In animal studies, adverse effects on embryofetal development were observed following administration of dihydroergotamine mesylate during pregnancy (decreased fetal body weight and/or skeletal ossification) in rats and rabbits or during pregnancy and lactation in rats (decreased body weight and impaired reproductive function in the offspring) in rats at doses less than those used clinically and which were not associated with maternal toxicity (see Data ). The estimated rate of major birth defects (2.2% to 2.9%) and miscarriage (17%) among deliveries to women with migraine are similar to rates reported in women without migraine.
All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriages in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data Intranasal administration of dihydroergotamine mesylate to pregnant rats throughout the period of organogenesis resulted in decreased fetal body weight and/or skeletal ossification at doses of 0.16 mg/day (associated with plasma exposures [AUC] less than that in humans at the maximum recommended human dose [MRHD] of 2.9 mg) or greater. A no-effect level for embryofetal toxicity was not identified in rats.
Intranasal administration of dihydroergotamine mesylate to pregnant rabbits throughout organogenesis resulted in decreased skeletal ossification at 3.6 mg/day. At the no-effect dose (1.2 mg/day) for adverse effects on embryofetal development in rabbits, plasma exposures (AUC) were less than that in humans at the MRHD. Intranasal administration of dihydroergotamine mesylate to female rats throughout pregnancy and lactation resulted in decreased body weight and impaired reproductive function (decreased mating indices) were observed in the offspring at doses of 0.16 mg/day or greater. A no-effect dose for adverse developmental effects in rats was not established.
Effects on development occurred at doses below those that produced evidence of significant maternal toxicity in these studies. Dihydroergotamine-induced intrauterine growth retardation has been attributed to reduced…
For breastfeeding, also see LactMed (National Library of Medicine), which summarizes milk levels and infant effects.
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