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What is Sinequan®?

K.C. Bruning
Updated May 17, 2024
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Sinequan® is a drug prescribed for the treatment of anxiety and depression. It can also be prescribed for insomnia, tension headaches, and to help with the symptoms of withdrawal from drugs and alcohol. Sinequan® works on the chemicals in the brain that control mood to improve mental balance.

The drug is a tricyclic antidepressant. Its class is named after the three rings of atoms that compose its chemical structure. Sinequan® works by acting on norepinephrine and serotonin, two chemicals in the brain that control mood. By encouraging these chemicals, the movement of nerve impulses in the body increases and thus works to elevate the mood of the patient.

Sinequan® comes in capsule form. It is typically prescribed to be taken once daily. Many doctors recommend taking the drug at bedtime as it can cause drowsiness and does not need to be taken with food. A patient may need to take Sinequan® several weeks before noticing an improvement in symptoms.

Though Sinequan® is prescribed for depression, one of its most serious side effects is that it may cause suicidal thoughts. Younger patients, including children, teenagers, and young adults are particularly susceptible to this effect. The elderly may also experience a similar sensitivity. For this reason, individuals taking Sinequan® should be observed carefully for changes in behavior, increased depression, and declaration of suicidal thoughts. Careful observation is important not only for the immediate safety of the patient, but also to help a doctor to determine whether the benefits of the drug outweigh the risks.

Patients who have had glaucoma, prostate problems, or a previous allergic reaction to tricyclic antidepressants should not take Sinequan®. Conditions such as seizures, overactive thyroid, and heart or blood problems may also be problematic and should be discussed with a doctor. Previous suicidal thoughts or attempts, alcohol abuse, or mental problems may also increase the risk of using the drug.

Less serious side effects of Sinequan® include drowsiness, tiredness, or weakness. Patients can also experience nausea, weight or appetite changes, and constipation. The drug can also cause more frequent or difficult urination.

More serious side effects of taking Sinequan® should be reported to a doctor immediately. They include an irregular heartbeat, fever, and breathing or swallowing difficulties. Patients may also experience back, neck, and jaw muscle spasms or uncontrollable shaking in a part of the body. Difficulty speaking or slow speech should also be treated as soon as possible.

WiseGeek is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
K.C. Bruning
By K.C. Bruning
Kendahl Cruver Bruning, a versatile writer and editor, creates engaging content for a wide range of publications and platforms, including WiseGeek. With a degree in English, she crafts compelling blog posts, web copy, resumes, and articles that resonate with readers. Bruning also showcases her passion for writing and learning through her own review site and podcast, offering unique perspectives on various topics.
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K.C. Bruning
K.C. Bruning
Kendahl Cruver Bruning, a versatile writer and editor, creates engaging content for a wide range of publications and...
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