Drug Interactions between Synthroid and venlafaxine
This report displays the potential drug interactions for the following 2 drugs:
- Synthroid (levothyroxine)
Interactions between your drugs
No interactions were found between Synthroid and venlafaxine. This does not necessarily mean no interactions exist. Always consult your healthcare provider.
- Synthroid is in the drug class thyroid drugs.
- Synthroid is used to treat the following conditions:
- Venlafaxine is in the drug class serotonin-norepinephrine reuptake inhibitors.
Venlafaxine is used to treat the following conditions:
- Anxiety and Stress
- Bipolar Disorder
- Dissociative Identity Disorder
- Generalized Anxiety Disorder
- Hot Flashes
- Irritable Bowel Syndrome
- Major Depressive Disorder
- Obsessive Compulsive Disorder
- Panic Disorder
- Post Traumatic Stress Disorder
- Postpartum Depression
- Premenstrual Dysphoric Disorder
- Social Anxiety Disorder
- Somatoform Pain Disorder
Drug and food interactions
Applies to: Synthroid (levothyroxine)
The timing of meals relative to your levothyroxine dose can affect absorption of the medication. Therefore, levothyroxine should be taken on a consistent schedule with regard to time of day and relation to meals to avoid large fluctuations in blood levels, which may alter its effects. In addition, absorption of levothyroxine may be decreased by foods such as soybean flour, cotton seed meal, walnuts, dietary fiber, calcium, and calcium fortified juices. These foods should be avoided within several hours of dosing if possible. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.
When levothyroxine is given during continuous enteral nutrition (tube feedings) for more than 7 days, the tube feeding should be interrupted for at least one hour before and one hour after the dose of levothyroxine. You may need more frequent blood tests to monitor levothyroxine levels.
Applies to: venlafaxine
Alcohol can increase the nervous system side effects of venlafaxine such as dizziness, drowsiness, and difficulty concentrating. Some people may also experience impairment in thinking and judgment. You should avoid or limit the use of alcohol while being treated with venlafaxine. Do not use more than the recommended dose of venlafaxine, and avoid activities requiring mental alertness such as driving or operating hazardous machinery until you know how the medication affects you. Talk to your doctor or pharmacist if you have any questions or concerns.
Therapeutic duplication warnings
No warnings were found for your selected drugs.
Therapeutic duplication warnings are only returned when drugs within the same group exceed the recommended therapeutic duplication maximum.
Drug Interaction Classification
|Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.|
|Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.|
|Minimally clinically significant. Minimize risk; assess risk and consider an alternative drug, take steps to circumvent the interaction risk and/or institute a monitoring plan.|
|No interaction information available.|
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.