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Ergoloid Mesylates

Generic name: ergoloid mesylates [ER-goe-loyd-MES-i-lates]

Brand names: Hydergine, Hydergine LC
(-), oral tablet (100 mg) compounding powder
Drug class: Miscellaneous central nervous system agents

What is Ergoloid Mesylates?

The use of ergoloid mesylates improves cognitive (mental) functioning and self-care in patients with symptoms such as dementia or other conditions like Alzheimer’s disease.Ergoloid mesylates do not cure dementia or any other underlying condition that can lead to a decrease in mental ability.Ergoloid mesylates do not treat dementia related to mental illness or mood disorders.This medication guide does not list all possible uses of ergoloid mesylates.

Side effects of Ergoloid Mesylates

If you experience any of the following symptoms of an allergic reaction, seek immediate medical attention: hives, difficulty breathing, swelling of your lips, face, tongue, or throat.

Ergoloid mesylates can cause serious side effects. If you experience:

  • Any changes in your memory, alertness, or mood

Some of the common side effects associated with ergoloid sylates include:

  • Nausea or any other stomach discomfort.

There may be other side effects. For medical advice on side effects, call your doctor. The FDA can be contacted at 1-800-FDA-1088 to report side effects.

Similar/related drugs

Donepezil, memantine, haloperidol, Aricept, Namenda, Haldol, and Rivastigmine


If you have a history of mental illness or psychosis, then you should not use ergoloid.

Before you take this drug

If you are allergic or have any of the following:

  • A history of psychosis or mental illness.

Unknown is whether ergoloid mesylates will harm an unborn child. If you plan to get pregnant or are already pregnant, tell your doctor.It is unknown if ergoloid mesylates pass into breast milk or if they could harm a baby who is nursing. You should tell your doctor if a child is breastfed.

How to take Ergoloid Mesylates?

Take ergoloid mesylates three times daily. Please follow all the instructions on the prescription label. Take this medication only as prescribed. Do not exceed the prescribed dose and extend its use beyond what is advised.You will need to visit your doctor regularly while using ergoloid mesylates. You or your family members should be alert if you experience any changes in mood or symptoms.You may need to wait up to four weeks for your symptoms to begin improving. To get the best results, use the medication exactly as prescribed.If your symptoms persist after three weeks of treatment, call your doctor.Store away from moisture, heat, and light at room temperature.

Details on dosage

Adult dose for dementia:

Take 1 mg 3 times daily.
The decision to treat a person with a decline in mental ability that is not well-defined may lead to the absence of underlying conditions that could be reversible or treatable. Before treatment, it is important to rule out delirium due to systemic diseases, primary neurological disorders, and primary mood disturbances.
Continuous clinical evaluation during treatment is required as the patient’s condition can evolve to the point that a specific diagnosis and alternative treatment may be possible.
Use: relief of symptoms associated with a decline in mental ability affecting self-care and motivation.

What happens if I miss the dose?

As soon as you realize, take the missed dose immediately. If your next scheduled dosage is approaching, skip the missed dose. You should not take more medicine to compensate for a missed dose.

What happens if I overdose?

Call 1-800-222-1222 for poison help or seek immediate medical attention.

Avoid this

If your doctor prescribes any restrictions regarding food, beverage, or activity, follow their instructions.

Interaction with other drug

Other drugs, such as vitamins and herbal remedies, may also interact with ergoloid. Inform your healthcare providers of all the medicines you are taking and those you plan to take.



Prescription only

Pregnancy & Lactation

CSA Schedule*
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