Hydroxyurea is an antineoplastic agent used most com-monly to treat both benign and malignant hematologic conditions. This medication inhibits ribonucleotide reductase to decrease DNA synthesis and ...

A black line on the nail could be a sign of melanonychia or splinter hemorrhage. Melanonychia can be caused by medications like antiretrovirals, chemotherapy, and antimalarials. If you see changes ...

Having a dark line on your fingernails or toenails is called melanonychia. The lines are brown or black and usually look like a stripe that begins at the bottom of your nail bed and continues to the ...

Melanonychia is a brown or black stain in your fingernail or toenail. You can have a dark line on one nail, a few nails, or all of your nails. The line is caused by the natural color in your body ...

The following represents disclosure information provided by authors of this manuscript. All relationships are considered compensated unless otherwise noted. Relationships are self-held unless noted. I ...