Does niacinamide Oral have side effects?
The following side effects are associated with niacinamide Oral:
Common side effects of niacinamide Oral:
| Stinging of Skin | Less Severe |
| Temporary Redness of Face and Neck | Less Severe |
| Heartburn | Less Severe |
| Gas | Less Severe |
Infrequent side effects of niacinamide Oral:
| Abnormally Low Blood Pressure | Less Severe |
| Worsening of Peptic Ulcer | Less Severe |
| Itching | Less Severe |
| Dry Skin | Less Severe |
| Dizzy | Less Severe |
| Rash | Less Severe |
| Fast Heartbeat | Less Severe |
| Feel Like Throwing Up | Less Severe |
| Throwing Up | Less Severe |
| Diarrhea | Less Severe |
| High Amount of Uric Acid in the Blood | Less Severe |
| High Blood Sugar | Less Severe |
Rare side effects of niacinamide Oral:
| Abnormal Liver Function Tests | Severe |
| Blurred Vision | Less Severe |
| Abnormal Heart Rhythm | Less Severe |
| Skin Darkening | Less Severe |
| Feeling Faint | Less Severe |
| Head Pain | Less Severe |
| Swelling of the Abdomen | Less Severe |
