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Put your health first in 2026 with free visits on all categories, and $200 off longevity testing.
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Lab Tests

Longevity
Comprehensive health testing
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Test for 7 common STIs
Metabolic Health
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Psychological Erectile Dysfunction: Is It All in Your Head?
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Answers to Common Questions About Felix’s Weight Loss Program
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What Causes Rapid Weight Gain?
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Who is Eligible for Weight Loss Medications & How Can I Get a Prescription?
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Day one sale

Put your health first in 2026 with free visits on all categories, and $200 off longevity testing.

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Contact
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Download Our App
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About Us
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BMI Calculator
Calorie Deficit Calculator
Blog

Further Reading

Psychological Erectile Dysfunction: Is It All in Your Head?
Learn more
Answers to Common Questions About Felix’s Weight Loss Program
Learn more
What Causes Rapid Weight Gain?
Learn more
Who is Eligible for Weight Loss Medications & How Can I Get a Prescription?
Learn more
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Take control of your journey
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Back to all FAQs

What are the side effects of Valtrex?

Valtrex can cause headaches, dizziness, nausea, vomiting, abdominal pain, and fatigue. 

If you develop side effects please discuss it with a doctor. If urgent, please see a doctor in person.