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Drug Interactions between Gemtesa and trospium

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

Moderate

trospium vibegron

Applies to: trospium and Gemtesa (vibegron)

MONITOR: Concomitant use of vibegron with antimuscarinic agents used in the treatment of overactive bladder (OAB) may increase the risk of urinary retention. Urinary retention has been reported in clinical trials and in the postmarketing period with use of vibegron.

MANAGEMENT: Caution is advised if vibegron is prescribed in combination with antimuscarinic medications used for the treatment of OAB. Vibegron should be discontinued in patients who develop urinary retention.

References (1)
  1. (2021) "Product Information. Gemtesa (vibegron)." Urovant Sciences, Inc

Drug and food interactions

Moderate

trospium food

Applies to: trospium

ADJUST DOSING INTERVAL: Food may reduce the oral absorption and bioavailability of trospium chloride. According to the product labeling, administration of trospium chloride with a high fat meal reduced the peak plasma concentration (Cmax) and area under the concentration-time curve (AUC) by 70% to 80% compared to administration while fasting.

MANAGEMENT: To ensure maximal oral absorption, trospium chloride should be administered at least 1 hour before meals or on an empty stomach. If trospium chloride is administered as a combination with xanomeline, the manufacturer recommends administering the capsules at least 1 hour before a meal or at least 2 hours after a meal. Capsules should be taken whole.

References (7)
  1. (2012) "Product Information. Sanctura (trospium)." Odyssey Pharmaceuticals
  2. Cerner Multum, Inc. "UK Summary of Product Characteristics."
  3. Canadian Pharmacists Association (2006) e-CPS. http://www.pharmacists.ca/function/Subscriptions/ecps.cfm?link=eCPS_quikLink
  4. (2024) "Product Information. Cobenfy (trospium-xanomeline)." Bristol-Myers Squibb
  5. (2019) "Product Information. Trosec (trospium)." Oryx Pharmaceuticals Inc
  6. (2022) "Product Information. Regurin (trospium)." Mylan Healthcare Sdn. Bhd.
  7. (2023) "Product Information. Trospium Chloride (trospium)." Padagis

Therapeutic duplication warnings

Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.

Duplication

Anticholinergics/antispasmodics

Therapeutic duplication

The recommended maximum number of medicines in the 'anticholinergics/antispasmodics' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'anticholinergics/antispasmodics' category:

  • Gemtesa (vibegron)
  • trospium

Note: In certain circumstances, the benefits of taking this combination of drugs may outweigh any risks. Always consult your healthcare provider before making changes to your medications or dosage.

See also

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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor 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.
Unknown 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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