Zoloft vs Sertraline: side-by-side comparison
Zoloft and Sertraline share the same active ingredient — Sertraline — which makes them direct alternatives. The practical differences are brand, manufacturer (Pfizer vs Various generics), available strengths and price. This comparison summarises what is the same, what differs, and when each is typically preferred.
| Property | Zoloft | Sertraline |
|---|---|---|
| Active ingredient | Sertraline | Sertraline |
| Manufacturer | Pfizer | Various generics |
| Class | Anti-Depressants | Anti-Depressants |
| Strengths | 25mg, 50mg, 100mg | 25mg, 50mg, 100mg |
| Forms | tablet | tablet |
What's the same
Both medications contain Sertraline. Clinical efficacy is comparable at equivalent doses, and the choice usually comes down to brand, price and availability.
Key differences
Although both contain Sertraline, they differ in brand (Zoloft vs Sertraline), manufacturer (Pfizer vs Various generics), excipients, tablet appearance, available strengths (25mg, 50mg, 100mg vs 25mg, 50mg, 100mg) and price.
Mechanism and action
Zoloft: Sertraline acts by selectively blocking the serotonin transporter, preventing serotonin reuptake from the synaptic cleft and increasing synaptic serotonin concentration. Sertraline: Sertraline selectively blocks the serotonin transporter on the presynaptic neuron, preventing reuptake of serotonin from the synaptic cleft.
When Zoloft is preferred
Zoloft is approved in adults for major depressive disorder, panic disorder with or without agoraphobia, obsessive-compulsive disorder, post-traumatic stress disorder, social anxiety disorder, and premenstrual dysphoric disorder.
When Sertraline is preferred
Generic sertraline shares the indications of the originator: major depressive disorder, panic disorder, OCD, PTSD, social anxiety disorder, and premenstrual dysphoric disorder, all in adults.
Frequently asked questions
Is Zoloft or Sertraline better? ▾
Neither is universally better — they share the same active ingredient Sertraline and are clinically equivalent at comparable doses. The choice usually comes down to brand, available strength, supply and cost.
Can I switch from Zoloft to Sertraline? ▾
Switching between Zoloft and Sertraline is usually straightforward as both share Sertraline. Equivalent dose and schedule are confirmed by the prescriber or pharmacist.
Do Zoloft and Sertraline have the same side effects? ▾
Generally yes. Sharing Sertraline, the side-effect profile is comparable. Minor differences can come from excipients and formulation.
More Zoloft comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.