3. Swollen, Black or Hairy Tongue
Yes, a black or hairy tongue is a possible side effect caused by amoxicillin–a penicillin type of antibiotic. Other common side effects amoxicillin causes include nausea, vomiting, diarrhea, stomach pain, headache, and rashes. While you might initially think hairy tongue is as bad as it gets, you should think again. Other serious side effects can include colitis, jaundice, seizures, and hives.
2. Disruption in Menstrual Cycle
While not exactly set in stone, and a very much debated topic, this effect of antibiotics is experienced by some women. Since antibiotics and hormones both need to be processed by the liver, there is some validity to antibiotics affecting estrogen and progesterone metabolism in women.
1. Hallucinations, Psychotic Reactions, and Tendon Ruptures
A type of antibiotics called fluoroquinolones have been found to cause damage to mitochondria and also cause irreversible nerve damage. They have also been linked to other side effects including depression, brain fog, hallucinations, and psychotic reactions. About 10 years ago, the FDA required makers of fluoroquinolone antibiotics to place a “black box” warning on the drugs in order to warn both prescribing doctors and patients of the potential risk of tendonitis and even tendon ruptures.