Medication Withdrawal and Side Effects of Sertraline - Psychiatry

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Hello! I am a patient taking Sertraline, approximately 200 mg once a day.
I sought treatment because I previously experienced sleep paralysis, and since taking the medication, I have not had this issue.
My symptoms are mild, but I have gained 10 kg, and my menstrual cycle has become irregular with very light periods.
Therefore, I want to discontinue the medication, but my doctor advised against stopping abruptly and suggested a gradual tapering.
I plan to take one pill on Monday, Wednesday, Friday, and Sunday, and half a pill on Tuesday, Thursday, and Saturday for six months before tapering off.

I have two questions:
1.
Is it really not possible to stop the medication abruptly? Why?
2.
Why does taking Sertraline cause weight gain and irregular menstrual cycles?

Han, 20~29 year old female. Ask Date: 2012/07/09

Dr. Lin Junyuan reply Psychiatry


Hello, please do not abruptly discontinue Sertraline, and closely monitor any changes in symptoms during the discontinuation process.
I would like to know if the discontinuation plan you described is a consensus reached after discussing with your physician.
Please ensure regular follow-up appointments and close monitoring.
As for the weight gain and irregular menstrual periods, there are too many factors that could contribute to these issues, so it cannot be solely attributed to Sertraline.
Wishing you all the best.

Reply Date: 2012/07/09

More Info


When considering the withdrawal from Sertraline (commonly known as Zoloft), it is crucial to understand the potential risks associated with abrupt discontinuation of this medication. Sertraline is a selective serotonin reuptake inhibitor (SSRI) that is often prescribed for conditions such as depression, anxiety, and obsessive-compulsive disorder. While it can be effective in managing these conditions, it also comes with a range of side effects and withdrawal symptoms if not tapered off properly.

1. Why You Shouldn't Stop Sertraline Abruptly: Stopping Sertraline suddenly can lead to withdrawal symptoms, which may include dizziness, nausea, irritability, insomnia, and flu-like symptoms. This phenomenon is sometimes referred to as "discontinuation syndrome." The reason for this is that your body has become accustomed to the presence of the medication, and suddenly removing it can disrupt the balance of neurotransmitters in the brain, particularly serotonin. Gradually tapering the dose allows your body to adjust to lower levels of the medication and minimizes the risk of withdrawal symptoms. Your doctor’s recommendation to slowly decrease the dosage over time is a standard practice to ensure a safer transition off the medication.

2. Weight Gain and Irregular Menstrual Cycles: Weight gain and menstrual irregularities are known side effects of Sertraline and other SSRIs. The exact mechanism behind weight gain is not entirely understood, but it is believed that SSRIs can affect appetite and metabolism. Some patients report increased cravings or changes in their eating habits while on these medications. Additionally, SSRIs can influence hormonal balance, which may contribute to menstrual irregularities. Changes in serotonin levels can affect the hypothalamus, a part of the brain that regulates many bodily functions, including the menstrual cycle.

If you are experiencing significant side effects such as weight gain and irregular periods, it is essential to discuss these concerns with your healthcare provider. They may suggest alternative medications or strategies to manage these side effects.
In your case, the tapering schedule you mentioned—taking one full pill on certain days and half a pill on others—seems to be a reasonable approach to gradually reduce your dosage. However, it is crucial to follow your doctor's specific instructions and communicate any new or worsening symptoms during this process.

In summary, it is not advisable to stop Sertraline abruptly due to the risk of withdrawal symptoms. The medication can lead to weight gain and menstrual irregularities, which should be discussed with your healthcare provider. Always consult with your doctor before making any changes to your medication regimen, and ensure that you have a support system in place as you navigate this transition.

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