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Anafranil vs. Prozac

Head-to-head comparisons of medication uses, side effects, warnings, and more.

Key takeaways

Anafranil (clomipramine) and Prozac (fluoxetine) are both used to treat obsessive-compulsive disorder (OCD), but they belong to different medication classes. Anafranil is a tricyclic antidepressant (TCA), while Prozac is a selective serotonin reuptake inhibitor (SSRI). Anafranil can be used by children as young as 10 years old, whereas Prozac can be used by children as young as 7 years old. Prozac is also approved for other conditions like major depressive disorder, bulimia, and panic disorder, while Anafranil is specifically for OCD. Anafranil is more likely to cause side effects like dry mouth, sleepiness, and weight gain, whereas Prozac commonly causes headaches, difficulty sleeping, and nausea. Both medications can increase the risk of suicidal thoughts in people under 25 years old. Anafranil is typically taken once a day at bedtime, while Prozac is usually taken once daily in the morning or once weekly, depending on the form.

Clomipramine

(Anafranil)

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Fluoxetine

(Prozac)

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Summary for Anafranil

Prescription only

Clomipramine (Anafranil) is a tricyclic antidepressant used to treat obsessive-compulsive disorder (OCD). It can be used by children as young as 10 years old. The medication is taken by mouth and your dosage might increase over several weeks. Clomipramine (Anafranil) isn't a first-choice medication because of the high risk for side effects such as dry mouth, sleepiness, weight gain, and headaches.

Indications for Anafranil

  • Obsessive-compulsive disorder (OCD)

Pros and Cons for Anafranil

Pros

  • Can help lessen unwanted thoughts and compulsions for people with OCD
  • Can be used in children as young as 10 years old
  • Dose can be adjusted by your provider based on your response
  • Available as a lower-cost generic

Cons

Common Side Effects for Anafranil

  • Dry mouth (63-84%)
  • Sleepiness (46-54%)
  • Dizziness (41-54%)
  • Tremor (33-54%)
  • Headache (28-52%)
  • Constipation (22-47%)
  • Sexual problems in males (6-42%)
  • Tiredness (35-39%)
  • Nausea (9-33%)
  • Sweating more (9-29%)
  • Trouble sleeping (11-25%)

Warnings for Anafranil

  • Suicidal thoughts or behavior
  • Mania
  • Serotonin syndrome
  • Seizures
  • Dizziness and falls
  • Eye problems (Angle-closure glaucoma)
  • Low sodium levels
  • Serious skin reactions

Summary for Prozac

Prescription only

Fluoxetine (Prozac) is a selective serotonin reuptake inhibitor (SSRI). It's used to treat several mental health conditions, including depression and panic disorder. The immediate-release pill and liquid are taken by mouth, typically once or twice daily. The delayed-release capsule is taken weekly, but it's approved only for depression. Some common side effects of fluoxetine (Prozac) include headaches, difficulty sleeping, and tiredness. Don't suddenly stop this medication if you've been taking it for a while; doing so can lead to symptoms of withdrawal.

Indications for Prozac

Pros and Cons for Prozac

Pros

  • Good choice for treating depression, OCD, and panic disorder
  • Less likely to make you sleepy compared to some other antidepressants, such as paroxetine (Paxil)
  • Taken by mouth, typically once daily (IR capsules and liquid) or once weekly (DR capsules, for depression only)
  • Can be taken with or without food

Cons

  • Can take up to 2 months for you to feel the full effects of the medication
  • Can raise the risk of suicidal thoughts and/or behavior in those age 24 or younger
  • Can interact with other medications, especially those affecting serotonin levels
  • Can cause withdrawal symptoms if you suddenly stop taking it

Common Side Effects for Prozac

  • Difficulty falling asleep (up to 33%)
  • Nausea (up to 29%)
  • Headache (21%)
  • Weakness (up to 21%)
  • Diarrhea (up to 18%)
  • Low appetite (up to 17%)
  • Drowsiness (up to 17%)
  • Anxiety (up to 15%)
  • Nervousness (up to 14%)
  • Tremor (up to 13%)
  • Dry mouth (up to 12%)
  • Throat pain (up to 11%)
  • Yawning (up to 11%)
  • Low sex drive (up to 11%)

Warnings for Prozac

  • Worsening depression, suicidal thoughts and behavior
  • Anxiety and trouble sleeping
  • Serotonin syndrome
  • Severe allergic reactions
  • Not for use alone in bipolar disorder
  • Risk of bleeding
  • Glaucoma
  • Low blood sodium levels
  • Life-threatening abnormal heart rhythm (QT prolongation)

Prices with our coupons for Anafranil vs. Prozac

Price Card Drug Icon
Clomipramine30 capsules / 50mg
$21.02$337.22
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Fluoxetine30 tablets / 20mg
$9.93$78.85
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