Found a blue oval pill and not sure what it is? Blue oval tablets include several widely-recognized medications — including generic sildenafil — as well as less obvious prescriptions for anxiety, infections, and depression. The only reliable way to identify a specific pill is its imprint code. Below are the most commonly encountered blue oval pills.
Most Common Blue Oval Pills
Sildenafil 100 mg
Generic Viagra
PDE5 inhibitor for erectile dysfunction. Requires a prescription.
Common imprints: I10, RX 771, G S6
Alprazolam 1 mg
Generic / Xanax (some manufacturers)
Benzodiazepine for anxiety and panic disorder. Schedule IV controlled substance.
Common imprints: MYLAN A1, 031 R
Doxycycline 100 mg
Generic (some manufacturers)
Tetracycline antibiotic for bacterial infections.
Varies by manufacturer
Valacyclovir
Generic / Valtrex
Antiviral for herpes simplex, shingles, and cold sores.
Common imprints: IP 233, M V5, GB 500
Escitalopram
Generic / Lexapro (some manufacturers)
SSRI antidepressant for depression and generalized anxiety disorder.
Varies by strength and manufacturer
Identify Your Blue Oval Pill
Enter the imprint code from your pill for an exact match — or search by shape and color to browse all options.
Look closely at both sides of the tablet for an imprint code. Blue oval tablets are easily confused — generic sildenafil, certain benzodiazepines, antibiotics, and antivirals can all share this general appearance. The imprint is the differentiating detail.
Enter the imprint plus "blue" and "oval" in PillID's identifier. If results are unclear, try searching by imprint only, since color shades vary between manufacturers. For any concerns about an unknown pill, call Poison Control at 1-800-222-1222.
Frequently Asked Questions
What is a blue oval pill?
Blue oval tablets include generic sildenafil 100mg (Viagra generic), alprazolam 1mg from some manufacturers, doxycycline 100mg, valacyclovir, and some escitalopram generics. The imprint code is the only reliable identifier.
How do I identify a blue oval pill without an imprint?
All U.S. prescription tablets require a unique imprint. A blue oval pill without an imprint is likely an OTC supplement or foreign medication. For emergencies, call Poison Control at 1-800-222-1222.
Is a blue oval pill always Viagra?
No. Brand-name Viagra is a distinctive blue diamond (not oval) shape. Generic sildenafil comes in blue oval forms, but many other medications are also blue and oval. Always use the imprint to confirm the exact drug and strength.