August 13, 2022

Side effects, dosage, price and more

Before you start taking Gemtesa, it is important to discuss certain considerations with your doctor. This includes any medical conditions you may have or other medications you are taking.


Taking a medicine with certain vaccines, foods, and others can affect how the medicine works. These effects are called interactions.

Before taking Gemtesa, be sure to tell your doctor about all medications you are taking, including prescription and over-the-counter medications. Also describe any vitamins, herbs or supplements you use. Your doctor or pharmacist can tell you about any interactions these may cause with Gemtesa.

For more information on drug-condition interactions, see the “Warnings” section below.

Interactions with Medications or Supplements

Gemtesa may interact with the heart medication digoxin (Lanoxin). It is generally safe to take digoxin with Gemtesa, but your doctor may monitor you more closely during treatment.

Your doctor or pharmacist can tell you more about this interaction.


Gemtesa may not be suitable for you if you have certain medical conditions. These are known as drug-condition interactions. Other factors may also determine if Gemtesa is a good treatment option for you.

Talk to your doctor about your medical history before taking Gemtesa. Factors to consider include those listed below.

  • Serious kidney problems. In most cases, it should be safe for people with mild to moderate kidney problems (such as mild chronic kidney disease) to take Gemtesa. But if you have a serious kidney problem (such as end-stage kidney disease), your doctor will likely suggest a treatment other than Gemtesa. Gemtesa has not been studied in people with severe kidney problems. To learn more, talk to your doctor.
  • Serious liver problems. People with mild to moderate liver problems can usually take Gemtesa. But the drug has not been studied in people with severe liver problems. It is not known if the medicine is safe to use if you have severe liver problems. alcoholic liver disease is an example of a liver problem that can be mild, moderate, or severe. Your doctor can tell you more about the severity of your liver disease. They can also discuss treatments that might be safer for you.
  • Difficulty emptying your bladder or weak urine stream. Gemtesa can cause urinary retention. If you already have trouble emptying your bladder, using Gemtesa could make your condition worse. Your doctor can determine if it is safe for you to take Gemtesa.
  • Allergic reaction. If you’ve had an allergic reaction to Gemtesa or any of its ingredients, your doctor probably won’t prescribe Gemtesa for you. Ask them what other medications are better options for you.

Gemtesa and alcohol

There are no known interactions between Gemtesa and alcohol. But alcohol and Gemtesa can cause some of the same side effects, including headaches, diarrhea, and nausea. The combination of the two could increase your risk of these side effects.

Also, alcohol can make overactive bladder symptoms worse. This is because alcohol can make you urinate more often, which can irritate your bladder.

If you drink alcohol, discuss with your doctor how much (if any) you can safely drink given your condition and treatment plan.

Pregnancy and breastfeeding

It is not known if it is safe to use Gemtesa while pregnant or breastfeeding.

If you are pregnant or breastfeeding, or planning to become pregnant or breastfeeding, ask your doctor if Gemtesa is right for you.

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