Drug interactions between sildenafil and tadalafil
Interactions between your drugs
There were no interactions found in our database between sildenafil and tadalafil - however, this does not necessarily mean no interactions exist. Always consult with your doctor or pharmacist.
- Sildenafil is in the following drug classes: agents for pulmonary hypertension, impotence agents.
- Sildenafil is used to treat the following conditions:
- Tadalafil is a member of the following drug classes: agents for pulmonary hypertension, impotence agents.
- Tadalafil is used to treat the following conditions:
Drug and food interactions
Applies to: sildenafil
If you are receiving therapy with sildenafil you should avoid the regular consumption of large amounts of grapefruits and grapefruit juice. Grapefruit can raise the levels of sildenafil in your body and delay the time it takes for the medication to work. Do not increase or decrease the amount of grapefruit products in your diet without first talking to your doctor.
Applies to: tadalafil
Tadalafil can lower blood pressure, and combining it with alcohol may further increase this effect. You may be more likely to experience symptoms such as dizziness, lightheadedness, fainting, flushing, headache, and heart palpitations. You should avoid or limit the use of alcohol while being treated with tadalafil, and use caution when getting up from a sitting or lying position. You may also want to avoid drinking large amounts of grapefruit juice, since it may increase the blood levels and effects of tadalafil. 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.
Therapeutic duplication warnings
Therapeutic duplication is the use of more than one medicine from the same drug category or therapeutic class to treat the same condition. This can be intentional in cases where drugs with similar actions are used together for demonstrated therapeutic benefit. It can also be unintentional in cases where a patient has been treated by more than one doctor, or had prescriptions filled at more than one pharmacy, and can have potentially adverse consequences.
Erectile dysfunction agents
The recommended maximum number of medicines in the 'erectile dysfunction agents' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'erectile dysfunction agents' category:
Agents for pulmonary hypertension
The recommended maximum number of medicines in the 'agents for pulmonary hypertension' category to be taken concurrently is usually one. Your list includes two medicines belonging to the 'agents for pulmonary hypertension' category:
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 information available.|
Do not stop taking any medications without consulting your healthcare provider.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.