Lyrica vs Plan B: side-by-side comparison
Lyrica (Pain Relief Medications) and Plan B (Hormones and Birth Control) belong to different therapeutic classes and are rarely interchangeable. This page compares the medications' purposes, mechanisms and the situations where each is used.
| Property | Lyrica | Plan B |
|---|---|---|
| Active ingredient | Pregabalin | Levonorgestrel |
| Manufacturer | Pfizer | Foundation Consumer Healthcare |
| Class | Pain Relief Medications | Hormones and Birth Control |
| Strengths | 25mg, 50mg, 75mg, 100mg, 150mg, 200mg, 225mg, 300mg | 1.5mg |
| Forms | capsule, oral solution, extended-release tablet | tablet |
What's the same
Lyrica and Plan B are used in very different patients, and the points in common are limited. The main shared element is that both meet regulatory standards for efficacy and safety and benefit from pharmacist oversight.
Key differences
Lyrica belongs to Pain Relief Medications while Plan B belongs to Hormones and Birth Control. Indications, mechanisms and target populations differ. The comparison is most useful when a clinician has mentioned both medications and the patient wants to understand where each fits.
Mechanism and action
Lyrica: Pregabalin binds the alpha-2-delta auxiliary subunit of voltage-gated calcium channels in the central nervous system, reducing presynaptic calcium influx and the release of excitatory neurotransmitters such as glutamate… Plan B: Plan B's primary mechanism is delaying or preventing ovulation when taken before the LH surge.
When Lyrica is preferred
Lyrica is approved in adults for neuropathic pain associated with diabetic peripheral neuropathy, post-herpetic neuralgia, spinal cord injury and other forms of central neuropathic pain (some markets), for generalised anxiety disorder, for fibromyalgia (in the United States and s…
When Plan B is preferred
Plan B is indicated for emergency contraception after unprotected intercourse or known/suspected contraceptive failure, in women of reproductive age.
Frequently asked questions
Is Lyrica or Plan B better? ▾
Lyrica and Plan B are not interchangeable — they treat different conditions. Asking which is "better" is meaningful only when a clinician has weighed both for the same specific clinical scenario.
Can I switch from Lyrica to Plan B? ▾
Switching between Lyrica and Plan B is rarely an appropriate decision since they belong to different classes and treat different conditions. The real question is usually whether the diagnosis calls for one medication or the other — which the prescriber resolves.
Do Lyrica and Plan B have the same side effects? ▾
No — they belong to different classes and have distinct side-effect profiles. Each medication has its own prescribing information.
More Lyrica comparisons
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.