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Drug Interactions between Cialis and doxycycline / omega-3 polyunsaturated fatty acids

This report displays the potential drug interactions for the following 2 drugs:

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Interactions between your drugs

No interactions were found between Cialis and doxycycline / omega-3 polyunsaturated fatty acids. However, this does not necessarily mean no interactions exist. Always consult your healthcare provider.

Cialis

A total of 302 drugs are known to interact with Cialis.

doxycycline / omega-3 polyunsaturated fatty acids

A total of 276 drugs are known to interact with doxycycline / omega-3 polyunsaturated fatty acids.

  • Doxycycline / omega-3 polyunsaturated fatty acids is in the drug class tetracyclines.

Drug and food interactions

Moderate

tadalafil food

Applies to: Cialis (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.

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Moderate

doxycycline food

Applies to: doxycycline / omega-3 polyunsaturated fatty acids

Iron can bind to doxycycline in the gastrointestinal tract, which may prevent their absorption into the bloodstream and possibly reduce their effectiveness. To avoid or minimize the interaction, iron-containing medications and doxycycline should preferably be taken at least three to four hours apart in most cases. Talk to your doctor if you have any questions or concerns, or if you have trouble separating the dosing times. Your doctor may be able to prescribe alternatives that do not interact. 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.

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Minor

doxycycline food

Applies to: doxycycline / omega-3 polyunsaturated fatty acids

Information for this minor interaction is available on the professional version.

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.


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Drug Interaction Classification

These classifications are only a guideline. The relevance of a particular drug interaction to a specific individual is difficult to determine. Always consult your healthcare provider before starting or stopping any medication.
Major Highly clinically significant. Avoid combinations; the risk of the interaction outweighs the benefit.
Moderate Moderately clinically significant. Usually avoid combinations; use it only under special circumstances.
Minor 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.
Unknown No interaction information available.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.