What is this pill - with only a line imprint down the middle?

The best thing that you can do to make sure is to take the pill to a pharmacist and have them identify it for you! that way you can be sure of what it is. good luck! :)

Pill imprint 1 has been identified as Metoprolol tartrate 25 mg.

Metoprolol is used in the treatment of high blood pressure; heart failure; atrial fibrillation; angina; supraventricular tachycardia (and more), and belongs to the drug class cardioselective beta blockers. Risk cannot be ruled out during pregnancy.

Metoprolol 25 mg is not subject to the Controlled Substances Act.

Pill image: https://www.drugs.com/imprints/1-6964.html

Take care,

maso.-