Identifying a Small White Pill with Top and 25 Imprint - Pharmacology

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Inquiry about medication?


The small white pill (used for bipolar disorder) is slightly smaller than a halved small red bean.
One side is imprinted with "top" and the other side has "25." I forgot the name of the medication, and since I am currently abroad and need to know, I would appreciate your help!

Ni Ni, 20~29 year old female. Ask Date: 2005/08/18

Dr. Liu Huiya reply Pharmacology


Dear Nini,
Hello! The medication you inquired about is Topiramate (25 mg), and its brand name is Topamax.
Thank you for reaching out, and I wish you well!

Reply Date: 2005/08/18

More Info


The small white pill you are describing, which has "TOP" imprinted on one side and "25" on the other, is identified as Topiramate. Topiramate is an anticonvulsant medication that is commonly used to treat epilepsy and to prevent migraine headaches. It is also sometimes prescribed for mood stabilization in conditions such as bipolar disorder, which may relate to your mention of it being used for "躁症" (mania or manic episodes).

Topiramate works by stabilizing electrical activity in the brain and is thought to affect neurotransmitters, which are the chemicals that transmit signals in the brain. This medication can help reduce the frequency of seizures in individuals with epilepsy and can also help reduce the severity and frequency of migraines. In the context of mood disorders, it may help in managing symptoms of mania or hypomania.

When taking Topiramate, it is important to be aware of potential side effects. Common side effects include dizziness, fatigue, and cognitive effects such as difficulty concentrating or memory issues. Some individuals may also experience changes in taste, weight loss, or tingling sensations in the extremities. More serious side effects can include metabolic acidosis, kidney stones, and increased risk of suicidal thoughts or behaviors. Therefore, it is crucial to monitor for any unusual symptoms and to communicate with your healthcare provider about any concerns.

If you are currently abroad and need to continue your medication, ensure that you have access to a pharmacy that can provide Topiramate. It is advisable to carry a copy of your prescription or a note from your healthcare provider to avoid any issues when obtaining your medication in a different country. Additionally, if you experience any side effects or if your symptoms change, seek medical advice promptly.

In summary, the pill you have identified is Topiramate, a medication primarily used for epilepsy and migraine prevention, with some applications in mood stabilization. Always consult with a healthcare professional before making any changes to your medication regimen, especially when traveling or in a different healthcare system.

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