Restasis vs. Xiidra: Which Prescription Dry Eye Drop Is Right for You?

Restasis vs. Xiidra

If you’ve been prescribed a treatment for dry eye, there’s a good chance you’ve heard of Restasis or Xiidra.

They’re two of the most commonly prescribed prescription eye drops for chronic dry eye—and while they’re often grouped together, they work in very different ways.

So how do you know which one might be right for you?

Let’s break it down.

First, what do they have in common?

Both Restasis (cyclosporine) and Xiidra (lifitegrast) are FDA-approved prescription eye drops used to treat dry eye disease.

They’re typically used:

• Twice daily (morning + night)
• Long-term, not as a quick fix
• When over-the-counter artificial tears aren’t enough

And importantly: both target inflammation, which is a root cause of many types of dry eye.

The biggest difference: how they work

Restasis (cyclosporine)

Restasis is an immunomodulator (a type of calcineurin inhibitor).

• It works by reducing inflammation in the tear-producing glands
• Over time, this helps your eyes produce more natural tears

Think of it as:
👉 helping your eyes rebuild their ability to make tears

Xiidra (lifitegrast)

Xiidra is an LFA-1 antagonist (a different anti-inflammatory pathway).

• It blocks a specific protein interaction (LFA-1 and ICAM-1)
• This helps reduce inflammation on the surface of the eye

Think of it as:
👉 interrupting the inflammatory signal causing symptoms

Onset of action: how fast do they work?

This is one of the most noticeable differences.

• Xiidra:
  Some patients may feel relief in as little as 2 weeks
• Restasis:
  Often takes 3–6 months for full effect

👉 In simple terms:

• Xiidra = faster symptom relief
• Restasis = slower, more gradual improvement

Side effects: what to expect

Both drops can cause some temporary irritation, but their side effect profiles are a bit different.

Common with Xiidra

• Unusual or metallic taste
• Eye irritation or discomfort
• Blurry vision
• Headache

Common with Restasis

• Burning sensation when applied
• Eye redness
• Watery eyes
• “Gritty” feeling

👉 Both can cause:

• Temporary burning
• Redness
• Blurred vision

Effectiveness: which one works better?

There’s no clear winner.

• Both are considered effective for dry eye disease
• There are no direct head-to-head clinical trials comparing them

What matters most:

• Your type of dry eye
• How your body responds
• Your tolerance to side effects

Cost & access

This can be a deciding factor for many patients.

• Restasis:
  • Available as a generic (cyclosporine)
  • Often more affordable / better covered by insurance
• Xiidra:
  • Brand only (no generic currently)
  • May be more expensive depending on coverage

How doctors typically choose

While every case is different, prescribing decisions often come down to:

Choose Xiidra if:

• You want faster symptom relief
• Inflammation is more surface-level
• You’re okay with possible taste-related side effects

Choose Restasis if:

• You’re focused on long-term tear production
• You’re okay waiting longer for results
• Cost or insurance coverage is a concern

Can you use both?

In some cases, doctors may recommend combination or sequential therapy—but this is individualized and should always be guided by a clinician.

The bottom line

Both Restasis and Xiidra are designed to treat the same condition—but they take different paths to get there.

• Xiidra: faster relief, targets inflammatory signaling
• Restasis: slower, supports natural tear production over time

There’s no one-size-fits-all answer—and finding the right option often takes some trial and adjustment.

A note from us

At Peeq, we’re not medical providers—but we believe patients deserve to understand what they’re using and why it works.

Prescription drops can help manage inflammation—but daily habits (like consistent lid hygiene and tear support) still play a critical role in long-term eye comfort.