Drug Interactions between Akeega and ramelteon
This report displays the potential drug interactions for the following 2 drugs:
- Akeega (abiraterone/niraparib)
- ramelteon
Interactions between your drugs
ramelteon niraparib
Applies to: ramelteon and Akeega (abiraterone / niraparib)
Coadministration with niraparib may decrease the plasma concentrations of drugs that are substrates of the CYP450 1A2 isoenzyme. At high concentrations, niraparib is able to weakly induce CYP450 1A2. If niraparib is used in combination with substrates of CYP450 1A2, particularly those with a narrow therapeutic range (e.g., clozapine, theophylline, ropinirole), then monitoring for signs and symptoms of reduced exposure to the CYP450 1A2 substrate should be considered.
References (6)
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Biotech, Inc.
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline Inc
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Inc
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline Australia Pty Ltd
- (2023) "Product Information. Zejula (niraparib)." GlaxoSmithKline UK Ltd
Drug and food interactions
ramelteon food
Applies to: ramelteon
GENERALLY AVOID: Alcohol may potentiate some of the pharmacologic effects of ramelteon. Use in combination may result in additive central nervous system depression and/or impairment of judgment, thinking, and psychomotor skills.
ADJUST DOSING INTERVAL: Administration of ramelteon with or immediately after a high-fat/heavy meal may delay the onset of hypnotic effects. In study subjects, administration of a 16 mg dose of ramelteon with a high-fat meal decreased the peak plasma drug concentration (Cmax) by 22% and delayed the median time to reach peak plasma drug concentration (Tmax) by approximately 45 minutes compared to administration in a fasted state.
MANAGEMENT: Patients receiving ramelteon should be advised to avoid the consumption of alcohol. For faster sleep onset, ramelteon should not be administered with or immediately after a high-fat/heavy meal.
References (1)
- (2005) "Product Information. Rozerem (ramelteon)." Takeda Pharmaceuticals America
abiraterone food
Applies to: Akeega (abiraterone / niraparib)
ADJUST DOSING INTERVAL: Food may significantly increase the oral bioavailability of some formulations of abiraterone acetate. Compared to administration in the fasted state, abiraterone peak plasma concentration (Cmax) and systemic exposure (AUC) were approximately 7- and 5-fold higher, respectively, when a single dose of abiraterone acetate was administered with a low-fat meal (7% fat; 300 calories) and approximately 17- and 10-fold higher, respectively, when it was administered with a high-fat meal (57% fat; 825 calories). Given the normal variation in the content and composition of meals, taking abiraterone acetate with meals has the potential to result in increased and highly variable exposures. The safety of these increased exposures during multiple dosing has not been assessed. However, the abiraterone acetate 125 mg tablet, commonly marketed as Yonsa, was found to have an approximately 6.5-fold higher Cmax and 4.4-fold higher AUC when a single dose of 500 mg (4 tablets) was administered with a high-fat meal (56% - 60% fat, 900 - 1000 calories) compared to overnight fasting in healthy volunteers. These differences were not considered clinically significant for this formulation.
MANAGEMENT: Some formulations of abiraterone acetate must be taken on an empty stomach. No food should be consumed for at least two hours before and one hour after the abiraterone acetate dose. However, the abiraterone acetate 125 mg tablet, commonly marketed as Yonsa, can be taken with or without food. The manufacturer's product labeling should be consulted for specific guidance.
References (8)
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Biotech, Inc.
- (2023) "Product Information. Akeega (abiraterone-niraparib)." Janssen Inc
- (2021) "Product Information. Zytiga (abiraterone)." Janssen Biotech, Inc.
- (2022) "Product Information. Yonsa (abiraterone)." Sun Pharmaceutical Industries
- (2023) "Product Information. Apo-Abiraterone (abiraterone)." Apotex Inc
- (2021) "Product Information. Zytiga (abiraterone)." Janssen-Cilag Pty Ltd
- (2023) "Product Information. Abiraterone (abiraterone)." Wockhardt UK Ltd
- (2023) "Product Information. Yonsa Mpred (abiraterone-methylprednisolone)." Sun Pharma ANZ Pty Ltd
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
See also
Drug Interaction Classification
Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit. | |
Moderately clinically significant. Usually avoid combinations; use it only under special circumstances. | |
Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan. | |
No interaction information available. |
Further information
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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