Tetracycline, including Sumycin, can cause several side effects. Some are common, while others are less frequent but potentially serious. Always inform your doctor about any new or worsening symptoms.
Common side effects often resolve on their own. These include nausea, vomiting, diarrhea, and loss of appetite. Mild stomach upset can often be managed by taking the medication with food or milk. However, dairy products might reduce absorption, so consult your doctor about optimal timing.
More serious, though less common, reactions require immediate medical attention. These include:
| Severe allergic reactions | Symptoms like difficulty breathing, swelling of the face, lips, tongue, or throat, hives, or itching. | Seek immediate emergency medical care. |
| Superinfection | Yeast infections (thrush), diarrhea caused by Clostridium difficile, or other infections. | Contact your doctor immediately. They may prescribe an antifungal or other medication. |
| Photosensitivity | Increased sun sensitivity leading to sunburn. | Limit sun exposure, use sunscreen with a high SPF, and wear protective clothing. |
| Tooth discoloration | Mostly affects children under 8 and pregnant women in their last trimester. | Avoid tetracycline during these periods if possible. |
| Liver problems | Symptoms such as jaundice (yellowing of skin and eyes), dark urine, or abdominal pain. | Stop taking the medication and seek immediate medical attention. |
This list isn’t exhaustive, and individual reactions vary. Always read the medication leaflet and discuss potential side effects with your doctor or pharmacist before starting treatment. They can help you weigh the benefits against the risks and manage any side effects that occur.
