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General Medication Fact Sheet for Sinequan
| Field | Information |
|---|---|
| Medication Name | Sinequan |
| Generic Name | Doxepin |
| Boxed/Label Warning | Antidepressants may increase the risk of suicidal thoughts and behavior in children, adolescents, and young adults. |
| Purpose | Treatment of depression, anxiety, and insomnia. Sometimes used for chronic pain. |
| Mechanism of Action | Tricyclic antidepressant (TCA) that inhibits the reuptake of norepinephrine and serotonin in the central nervous system. Also has antihistaminic properties. |
| Dosage Forms | Oral capsules, oral solution |
| Available Strengths | 10 mg, 25 mg, 50 mg, 75 mg, 100 mg, 150 mg |
| Dosage Frequency | Typically once daily or divided doses, as directed by a healthcare provider. |
| Common Side Effects | Drowsiness, dry mouth, blurred vision, constipation, weight gain, dizziness. |
| Serious Side Effects | Irregular heartbeat, seizures, confusion, hallucinations, urinary retention, severe allergic reactions. |
| Drug Interactions | MAO inhibitors, other antidepressants, antihistamines, alcohol, CNS depressants, certain blood pressure medications. |
| Important Notes | Avoid alcohol while taking this medication. Use caution when driving or operating machinery. Inform your doctor of all medications you are taking. |
| Storage | Store at room temperature away from moisture and light. |
| Missed Dose | Take as soon as you remember unless it is almost time for your next dose. Do not double the dose. |
| Alternatives | Amitriptyline, Nortriptyline, Imipramine, Sertraline (Zoloft), Fluoxetine (Prozac) |
Sinequan Alternatives
| Medication | Mechanism of Action | Notes |
|---|---|---|
| Amitriptyline (Elavil) | Tricyclic antidepressant (TCA) | Similar mechanism of action to doxepin. |
| Nortriptyline (Pamelor) | Tricyclic antidepressant (TCA) | Another TCA with similar uses. |
| Imipramine (Tofranil) | Tricyclic antidepressant (TCA) | Used for depression and bedwetting in children. |
| Sertraline (Zoloft) | Selective Serotonin Reuptake Inhibitor (SSRI) | Different class of antidepressant, often with fewer side effects than TCAs. |
| Fluoxetine (Prozac) | Selective Serotonin Reuptake Inhibitor (SSRI) | Another SSRI, used for depression, OCD, and other conditions. |
Sinequan Side Effects
| Common Side Effects | Serious Side Effects |
|---|---|
| Drowsiness | Irregular heartbeat |
| Dry mouth | Seizures |
| Blurred vision | Confusion |
| Constipation | Hallucinations |
| Weight gain | Urinary retention |
| Dizziness | Severe allergic reactions (rash, itching, swelling, difficulty breathing) |
Sinequan Dosage Guide
| Condition | Starting Dose | Maintenance Dose | Administration Notes |
|---|---|---|---|
| Depression | 25-75 mg daily | 75-150 mg daily | Can be taken once daily at bedtime or in divided doses. |
| Anxiety | 25-75 mg daily | 75-150 mg daily | Can be taken once daily at bedtime or in divided doses. |
| Insomnia | 10-25 mg at bedtime | 10-50 mg at bedtime | Take 30-60 minutes before bedtime. |
