(rimegepant)
12 CLINICAL PHARMACOLOGY
12 CLINICAL PHARMACOLOGY
12.2 Pharmacodynamics
The relationship between pharmacodynamic activity and the mechanism(s) by which rimegepant exerts its clinical effects is unknown.
No clinically relevant differences in resting blood pressure were observed when rimegepant was concomitantly administered with sumatriptan (12 mg subcutaneous, given as two 6 mg doses separated by one hour) compared with sumatriptan alone to healthy volunteers.
12.3 Pharmacokinetics
Absorption
Following oral administration of NURTEC ODT, rimegepant is absorbed with the maximum concentration at 1.5 hours. The absolute oral bioavailability of rimegepant is approximately 64%.
Effects of Food
Following administration of NURTEC ODT under fed conditions with a high-fat or low-fat meal, Tmax was delayed by approximately 1 to 1.5 hours. A high-fat meal reduced Cmax by 41 to 53% and AUC by 32 to 38%. A low-fat meal reduced Cmax by 36% and AUC by 28%. NURTEC ODT was administered without regard to food in clinical safety and efficacy studies [see Dosage and Administration (2.1, 2.2)]. The impact of the reduction in rimegepant exposure because of administration with food on its efficacy is unknown.
Distribution
The steady state volume of distribution of rimegepant is 120 L. Plasma protein binding of rimegepant is approximately 96%.
Elimination
Metabolism
Rimegepant is primarily metabolized by CYP3A4 and to a lesser extent by CYP2C9. Rimegepant is the primary form (~77%) with no major metabolites (i.e., >10%) detected in plasma.
Excretion
The elimination half-life of rimegepant is approximately 11 hours in healthy subjects. Following oral administration of [14C]-rimegepant to healthy male subjects, 78% of the total radioactivity was recovered in feces and 24% in urine. Unchanged rimegepant is the major single component in excreted feces (42%) and urine (51%).
Specific Populations
Renal Impairment
In a dedicated clinical study comparing the pharmacokinetics of rimegepant in subjects with mild (estimated creatinine clearance [CLcr] 60-89 mL/min), moderate (CLcr 30-59 mL/min), and severe (CLcr 15-29 mL/min) renal impairment to that with normal subjects (healthy matched control), the exposure of rimegepant following single 75 mg dose was approximately 40% higher in subjects with moderate renal impairment. However, there was no clinically meaningful difference in the exposure of rimegepant in subjects with severe renal impairment compared to subjects with normal renal function (CLcr ≥90 mL/min). NURTEC ODT has not been studied in patients with end-stage renal disease (CLcr <15 mL/min) [see Use in Specific Populations (8.7)].
Hepatic Impairment
In a dedicated clinical study comparing the pharmacokinetics of rimegepant in subjects with mild, moderate, and severe hepatic impairment to that with normal subjects (healthy matched control), the exposure of rimegepant (Cmax and AUC) following single 75 mg dose was approximately 2-fold higher in subjects with severe impairment (Child-Pugh class C). There were no clinically meaningful differences in the exposure of rimegepant in subjects with mild (Child-Pugh class A) and moderate hepatic impairment (Child-Pugh class B) compared to subjects with normal hepatic function [see Use in Specific Populations (8.6)].
Other Specific Populations
No clinically significant differences in the pharmacokinetics of rimegepant were observed based on age, sex, race/ethnicity, body weight, or CYP2C9 genotype [see Clinical Pharmacology (12.5)].
Drug Interaction Studies
In Vitro Studies
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- Enzymes
Rimegepant is a substrate of CYP3A4 and CYP2C9 (see In Vivo Studies). Rimegepant is not an inhibitor of CYP1A2, 2B6, 2C8, 2C9, 2C19, 2D6, or UGT1A1 at clinically relevant concentrations. However, rimegepant is a weak inhibitor of CYP3A4 with time-dependent inhibition. Rimegepant is not an inducer of CYP1A2, CYP2B6, or CYP3A4 at clinically relevant concentrations.
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- Transporters
Rimegepant is a substrate of P-gp and BCRP (see In Vivo Studies).
Rimegepant is not a substrate of OATP1B1 or OATP1B3. Considering its low renal clearance, rimegepant was not evaluated as a substrate of the OAT1, OAT3, OCT2, MATE1, or MATE2-K.
Rimegepant is not an inhibitor of P-gp, BCRP, OAT1, or MATE2-K at clinically relevant concentrations. It is a weak inhibitor of OATP1B1 and OAT3. Rimegepant is an inhibitor of OATP1B3, OCT2, and MATE1. In a dedicated interaction study, concomitant administration of 75 mg rimegepant at steady state with metformin, a MATE1 transporter substrate, at steady state resulted in no clinically significant impact on either metformin pharmacokinetics or on glucose utilization. No clinical drug interactions are expected for NURTEC ODT with OATP1B3 or OCT2, at clinically relevant concentrations.
CYP3A4 Inhibitors
In a dedicated drug interaction study, concomitant administration of 75 mg rimegepant (single dose) with itraconazole, a strong CYP3A4 inhibitor, at steady state resulted in increased exposures of rimegepant (AUC by 4-fold and Cmax by ~1.5-fold) [see Drug Interactions (7.1)]. No dedicated drug interaction study was conducted to assess the effect of concomitant administration of a weak inhibitor of CYP3A4 on the pharmacokinetics of rimegepant. The concomitant administration of rimegepant with a moderate inhibitor of CYP3A4 may increase rimegepant exposures (AUC) by less than 2-fold [see Drug Interactions (7.1)]. Concomitant administration of rimegepant with a weak inhibitor of CYP3A4 is not expected to have a clinically significant impact on rimegepant exposures.
CYP3A Inducers
In a dedicated drug interaction study, concomitant administration of 75 mg rimegepant (single dose) with rifampin, a strong CYP3A4 inducer, at steady state resulted in decreased exposures of rimegepant (AUC by 80% and Cmax by 64%), which may lead to loss of efficacy [see Drug Interactions (7.2)]. No dedicated drug interaction study was conducted to assess the effect of concomitant administration of a moderate or weak inducer of CYP3A4 on the pharmacokinetics of rimegepant. Since rimegepant is a moderately sensitive substrate for CYP3A4, drugs that are moderate inducers of CYP3A4 can also cause significant reduction in rimegepant exposure resulting in loss of efficacy [see Drug Interactions (7.2)]. Clinically significant interaction is not expected with concomitant administration of weak inducers of CYP3A4 and rimegepant.
CYP2C9 Inhibitors
In a dedicated drug interaction study, concomitant administration of 75 mg rimegepant (single dose) with fluconazole, a combined moderate CYP3A4 and CYP2C9 inhibitor, resulted in increased exposures of rimegepant (AUC by 1.8-fold) with no relevant effect on Cmax. Rimegepant is primarily metabolized by CYP3A4 and to a lesser extent by CYP2C9. Increase in the exposure of rimegepant can be attributed to combined inhibition of CYP2C9 and CYP3A4 with fluconazole administration suggesting a minor contribution from CYP2C9. Thus, CYP2C9 inhibition alone is not expected to significantly affect rimegepant exposures.
P-gp and BCRP Inhibitors
In a dedicated drug interaction study, concomitant administration of NURTEC ODT with cyclosporine (a potent P-gp and BCRP inhibitor) and with quinidine (a potent P-gp inhibitor) resulted in an increase of similar magnitude in rimegepant exposure (AUC and Cmax by 1.6 and 1.4 fold with cyclosporine, and by 1.6 and 1.7 fold with quinidine, respectively) [see Drug Interactions (7.3)]. Therefore, concomitant administration of NURTEC ODT with BCRP inhibitors is not expected to have a clinically significant impact on rimegepant exposures.
Other Drugs: No significant pharmacokinetic interactions were observed when rimegepant was concomitantly administered with oral contraceptives (norelgestromin, ethinyl estradiol), midazolam (a sensitive CYP3A4 substrate), metformin (a MATE1 substrate), or sumatriptan [see Clinical Pharmacology (12.2)].
12.5 Pharmacogenomics
CYP2C9 activity is reduced in individuals with genetic variants such as the CYP2C9*2 and CYP2C9*3 alleles. Rimegepant Cmax and AUC0-inf were similar in CYP2C9 intermediate metabolizers (i.e., *1/*2, *2/*2, *1/*3, n=43) as compared to normal metabolizers (i.e., *1/*1, N=72). Adequate PK data are not available from CYP2C9 poor metabolizers (i.e., *2/*3). Since the contribution of CYP2C9 to rimegepant metabolism is considered minor, CYP2C9 polymorphism is not expected to significantly affect its exposure.
MEDICATION GUIDE
| This Patient Information has been approved by the U.S. Food and Drug Administration Revised: 4/2026 |
PATIENT INFORMATION NURTEC® ODT (NUR-tek) (rimegepant) orally disintegrating tablets (ODT), for sublingual or oral use |
What is NURTEC ODT? NURTEC ODT is a prescription medicine used in adults for the:
It is not known if NURTEC ODT is safe and effective in children. |
Do not take NURTEC ODT if you are:
See the end of this leaflet for a complete list of ingredients in NURTEC ODT. |
Before you take NURTEC ODT, tell your healthcare provider about all of your medical conditions, including if you:
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. |
How should I take NURTEC ODT?
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What are the possible side effects of NURTEC ODT? NURTEC ODT may cause serious side effects including:
The most common side effect of NURTEC ODT in acute treatment of migraine attacks with or without aura is:
The most common side effects of NURTEC ODT in preventive treatment of episodic migraine are:
These are not the only possible side effects of NURTEC ODT. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1‑800 FDA-1088. |
How should I store NURTEC ODT?
Keep NURTEC ODT and all medicines out of the reach of children. |
General information about the safe and effective use of NURTEC ODT: Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use NURTEC ODT for a condition for which it was not prescribed. Do not give NURTEC ODT to other people, even if they have the same symptoms that you have. It may harm them. You can ask your pharmacist or healthcare provider for information about NURTEC ODT that is written for health professionals. |
What are the ingredients in NURTEC ODT? Active ingredient in NURTEC ODT: rimegepant Inactive ingredients in NURTEC ODT: benzyl alcohol, eucalyptol, gelatin, limonene, mannitol, menthol, menthone, menthyl acetate, sucralose, and vanillin 
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