Side Effects: Tinnitus
Understanding the Impact of Quinine-induced Tinnitus
Tinnitus, commonly known as ringing in the ears, is a condition that occurs when auditory neurons are constantly stimulated without any external sound stimulus. Contrary to previous beliefs, it has been discovered that quinine-induced tinnitus is not caused by issues with cochlear hair cells. Recent research reveals that this drug specifically affects and disrupts the ion channels in dopamine neurons.
The good news is that this side effect of quinine typically subsides once individuals cease using the chemical, offering relief from the uncomfortable symptoms of tinnitus.
Side Effects: Vision Loss
Cinchonism, resulting from an excessive intake of alkaloids found in the cinchona plant, can have various side effects. One particularly serious side effect is vision loss, which can be either temporary or permanent. A case of acute quinine poisoning serves as an example, where doctors discovered retinal edema in both eyes, leading to significant vision impairment. The affected individual exhibited minimal or no pupil reaction, and even after a period of 10 weeks, tests revealed extensive damage to all retinal layers, making substantial recovery unlikely.