In the open-label trial of out- and in-patients with depression who had not responded to adequate monotherapy with two antidepressants, the addition of mirtazapine (15â30 mg/day) to either an SSRI (n= 23) or venlafaxine (n= 12) led to remission in half of the patients.
Other, rare causes of discolored nails include the yellow nail syndrome, an inherited condition that results in slow-growing, yellowing, discolored nails and is associated with lymphedema (swelling of tissues due to the accumulation of fluid) and lung diseases.ails may also appear lightened to a whitish-yellow color if there has been separation of the nail from the nail bed, termed onycholysis. The skin, mucous membranes, and nails may appear blue when there is inadequate oxygenation of blood (cyanosis), but this is not true discoloration of the nail itself.
More common in toenails than fingernails, Fungus infections often cause the end of the nail to separate from the nail bed. Additionally, debris (white, green, yellow, or black) may build up under the nail plate and discolor the nail bed. The top of the nail or the skin at the base of the nail can also be affected.