Health Library Logo

Health Library

What is Galantamine: Uses, Dosage, Side Effects and More

Created at:1/13/2025

Overwhelmed by medical jargon?

August makes it simple. Scan reports, understand symptoms, get guidance you can trust — all in one, available 24x7 for FREE

Loved by 2.5M+ users and 100k+ doctors.

Galantamine is a prescription medication primarily used to treat mild to moderate dementia caused by Alzheimer's disease. This medication belongs to a class of drugs called cholinesterase inhibitors, which work by helping brain cells communicate more effectively with each other.

If you or a loved one has been prescribed galantamine, you're likely looking for clear, reassuring information about how it works and what to expect. Let's walk through everything you need to know about this medication in simple, practical terms.

What is Galantamine?

Galantamine is a brain medication that helps slow down memory loss and thinking problems in people with Alzheimer's disease. It comes from a natural compound originally found in snowdrop flowers and daffodils, though the medication you receive is made in a laboratory.

This medication doesn't cure Alzheimer's disease, but it can help maintain thinking abilities and daily functioning for a period of time. Think of it as giving your brain's communication system a gentle boost when it needs extra support.

Galantamine is available as regular tablets, extended-release capsules, and liquid solution. Your doctor will choose the best form based on your specific needs and how well you can swallow different types of medication.

What is Galantamine Used For?

Galantamine is primarily prescribed for mild to moderate dementia associated with Alzheimer's disease. It helps improve or maintain cognitive functions like memory, thinking, and the ability to perform daily activities.

Your doctor might prescribe galantamine when you're experiencing memory problems, confusion, or difficulty with everyday tasks like managing finances or preparing meals. The medication works best when started in the earlier stages of Alzheimer's disease.

Sometimes doctors may prescribe galantamine for other memory-related conditions, though this is less common. Your healthcare provider will carefully evaluate your symptoms and medical history before recommending this treatment.

How Does Galantamine Work?

Galantamine works by blocking an enzyme called acetylcholinesterase, which normally breaks down acetylcholine in your brain. Acetylcholine is a chemical messenger that helps nerve cells communicate, especially for memory and learning.

In Alzheimer's disease, there's often not enough acetylcholine available for proper brain cell communication. By blocking the enzyme that destroys it, galantamine helps preserve more of this important brain chemical.

This medication is considered moderately effective rather than a strong intervention. It typically provides modest improvements in cognitive function and may help slow the progression of symptoms for several months to a few years.

How Should I Take Galantamine?

Take galantamine exactly as your doctor prescribes, usually twice daily with morning and evening meals. Taking it with food helps reduce stomach upset and improves how well your body absorbs the medication.

For regular tablets, swallow them whole with a full glass of water. Extended-release capsules should never be crushed, chewed, or opened. If you're taking the liquid form, use the measuring device provided to ensure accurate dosing.

Try to take your doses at the same times each day to maintain steady levels in your system. If you're having trouble remembering doses, consider setting phone alarms or using a pill organizer.

It's helpful to eat something substantial before taking galantamine, not just a light snack. Foods with some protein or fat can be particularly good at preventing stomach irritation.

How Long Should I Take Galantamine For?

Most people take galantamine for months to years, as long as it continues to provide benefit and is well-tolerated. Your doctor will regularly assess how well the medication is working and whether you should continue taking it.

The benefits of galantamine tend to be most noticeable in the first six months to two years of treatment. After that, the medication may help slow further decline rather than providing obvious improvements.

Your doctor will likely schedule regular check-ups every three to six months to monitor your response to the medication. These visits help determine whether galantamine is still helping and if any dosage adjustments are needed.

Never stop taking galantamine suddenly without talking to your doctor first. If discontinuation is necessary, your doctor may gradually reduce your dose to minimize any potential withdrawal effects.

What Are the Side Effects of Galantamine?

Like all medications, galantamine can cause side effects, though not everyone experiences them. Most side effects are mild to moderate and often improve as your body adjusts to the medication.

The most common side effects you might experience include digestive issues and general discomfort. Here's what many people notice when starting galantamine:

  • Nausea and vomiting
  • Diarrhea or loose stools
  • Loss of appetite
  • Weight loss
  • Dizziness or headache
  • Fatigue or weakness
  • Stomach pain or indigestion

These common side effects usually occur during the first few weeks of treatment and often become less bothersome as your body adapts to the medication.

Some people may experience more serious but less common side effects that require immediate medical attention. While these are rare, it's important to be aware of them:

  • Slow or irregular heartbeat
  • Chest pain or difficulty breathing
  • Severe vomiting or dehydration
  • Fainting or severe dizziness
  • Muscle weakness or tremors
  • Seizures or convulsions
  • Signs of liver problems like yellowing of skin or eyes

If you experience any of these serious side effects, contact your doctor immediately or seek emergency medical care.

Who Should Not Take Galantamine?

Galantamine isn't suitable for everyone, and your doctor will carefully review your medical history before prescribing it. Certain health conditions and medications can make galantamine unsafe or less effective.

You should not take galantamine if you're allergic to it or have had severe reactions to similar medications in the past. Your doctor will also exercise caution if you have certain medical conditions.

People with the following conditions may need special monitoring or may not be able to take galantamine safely:

  • Severe kidney or liver disease
  • Heart rhythm problems or slow heart rate
  • Stomach ulcers or bleeding disorders
  • Asthma or severe breathing problems
  • Seizure disorders or epilepsy
  • Bladder or urinary tract blockages

Always tell your doctor about all medications you're taking, including over-the-counter drugs and supplements, as some can interact with galantamine.

Galantamine Brand Names

Galantamine is available under several brand names, with Razadyne being the most commonly prescribed in the United States. You might also see it sold as Razadyne ER for the extended-release formulation.

Other brand names include Reminyl, which was the original brand name before it was changed to Razadyne. Generic versions of galantamine are also widely available and work just as effectively as the brand-name versions.

Your pharmacy might substitute a generic version unless your doctor specifically requests the brand name. Generic galantamine contains the same active ingredient and works the same way, often at a lower cost.

Galantamine Alternatives

If galantamine doesn't work well for you or causes troublesome side effects, your doctor has several other options to consider. Other cholinesterase inhibitors work similarly to galantamine but may be better tolerated by some people.

Donepezil (Aricept) is another cholinesterase inhibitor that's often tried first because it only needs to be taken once daily. Rivastigmine (Exelon) is available as pills, liquid, or skin patches, which can be helpful for people who have trouble swallowing.

For more advanced Alzheimer's disease, your doctor might consider memantine (Namenda), which works differently than galantamine and can sometimes be used together with cholinesterase inhibitors.

Non-medication approaches like cognitive therapy, regular exercise, and social engagement can also be valuable additions to any treatment plan for memory problems.

Is Galantamine Better Than Donepezil?

Both galantamine and donepezil are effective medications for Alzheimer's disease, but neither is definitively "better" than the other. The choice between them depends on your individual response, side effects, and dosing preferences.

Galantamine may work slightly differently because it has an additional mechanism of action beyond just blocking acetylcholinesterase. Some studies suggest it might provide modest additional benefits, but the differences are generally small.

Donepezil has the advantage of once-daily dosing, which can be easier to remember and manage. Galantamine requires twice-daily dosing but may cause fewer sleep disturbances in some people.

Your doctor will consider factors like your other medications, medical conditions, and how well you tolerate each drug when making a recommendation. Sometimes trying one medication first helps determine which works best for you.

Frequently asked questions about Galantamine (oral route)

Galantamine can affect heart rhythm and rate, so people with heart disease need extra monitoring when taking this medication. Your doctor will carefully evaluate your heart health before prescribing galantamine.

If you have heart problems, your doctor might order an electrocardiogram (ECG) before starting treatment and periodically monitor your heart rhythm. Most people with stable heart conditions can safely take galantamine with proper medical supervision.

If you take too much galantamine, contact your doctor immediately or call poison control. An overdose can cause severe nausea, vomiting, slow heart rate, low blood pressure, and potentially dangerous breathing problems.

Don't wait to see if symptoms develop - seek medical attention right away if you suspect an overdose. Bring the medication bottle with you to help medical professionals understand exactly what and how much was taken.

If you miss a dose, take it as soon as you remember, but only if it's been less than a few hours since your scheduled time. If it's almost time for your next dose, skip the missed dose and continue with your regular schedule.

Never take two doses at once to make up for a missed dose, as this can increase your risk of side effects. If you frequently forget doses, talk to your doctor about strategies to help you remember.

The decision to stop galantamine should always be made with your doctor's guidance. You might consider stopping if you experience intolerable side effects, if the medication no longer seems to be helping, or if your condition has progressed significantly.

Your doctor will help you weigh the benefits and risks of continuing versus stopping the medication. If you do stop, your doctor may gradually reduce your dose rather than stopping abruptly.

It's best to limit or avoid alcohol while taking galantamine. Alcohol can worsen the side effects of galantamine, particularly dizziness, drowsiness, and coordination problems.

If you do choose to drink occasionally, do so in moderation and be extra cautious about falls or accidents. Always discuss your alcohol use with your doctor so they can provide personalized advice based on your overall health.

Want a 1:1 answer for your situation?

Ask your question privately on August, your 24/7 personal AI health assistant.

Loved by 2.5M+ users and 100k+ doctors.

footer.address

footer.talkToAugust

footer.disclaimer

footer.madeInIndia