Can I take Nortriptyline and Rosuvastatin together?

Why this happens

Nortriptyline is a tricyclic antidepressant primarily broken down by liver enzymes known as CYP2D6. Rosuvastatin is a statin used for cholesterol that is mostly processed by different enzymes (CYP2C9) and transport proteins. Because they do not compete for the same 'processing machinery' in the liver, they do not significantly affect each other's levels in the blood.

What you should do

You can safely take these two medicines together as prescribed by your doctor. However, always inform your healthcare provider if you experience unusual muscle pain or weakness (a rare side effect of statins) or excessive drowsiness (a common side effect of nortriptyline).

Important precautions

Depression and mental health disorders

Nortriptyline can increase thoughts of self-harm or suicide, particularly when first starting treatment or changing the dose. Seek immediate medical help if your mood worsens or you have distressing thoughts.

Serotonin syndrome

Combining nortriptyline with other medicines that increase serotonin levels (such as SSRIs, SNRIs, or certain painkillers) can cause serotonin syndrome, a potentially life-threatening condition. Symptoms include agitation, sweating, fast heartbeat, and muscle stiffness.

Muscle problems (Myopathy/Rhabdomyolysis)

Rosuvastatin can cause serious muscle breakdown. You must contact your doctor immediately if you experience unexplained muscle pain, tenderness, or weakness, especially if accompanied by a fever or dark-coloured urine.

Heart conditions

Nortriptyline can affect your heart rhythm and should be used with extreme caution if you have a history of heart disease, recent heart attack, or heart block.

Pregnancy

You must not take rosuvastatin if you are pregnant or planning to become pregnant, as it may harm the unborn baby. Use effective contraception while taking this medicine.

Food and drink warnings

Alcohol

It is best to avoid or strictly limit alcohol while taking nortriptyline. Combining them can significantly increase drowsiness and dizziness, and may affect your coordination. Alcohol can also worsen the side effects of the medicine.

It is best to avoid or strictly limit alcohol when taking rosuvastatin. Drinking large amounts of alcohol regularly can increase your risk of developing serious liver problems and may increase the risk of muscle side effects.

Caffeine (Coffee, tea, energy drinks)

Nortriptyline can sometimes increase the effects of caffeine, leading to feelings of jitteriness, anxiety, or difficulty sleeping. If you notice these effects, you should limit your caffeine intake.

Grapefruit juice

While rosuvastatin is less affected by grapefruit than some other statins, drinking very large amounts (more than 1.2 litres a day) may increase the levels of the medicine in your blood, potentially increasing the risk of side effects. It is safest to keep your intake to normal amounts.

Using other medicines

Taking multiple medicines? Our Medicines Interaction Checker helps you check whether your prescriptions, over-the-counter medicines, and supplements are safe to take together. Simply search for your medicines to see potential interactions and what to do about them.

Disclaimer

This information is for general educational purposes only and should not be relied upon as a substitute for professional medical advice. Always consult your GP, pharmacist, or another qualified healthcare professional before making decisions about your medications. Individual circumstances may vary, and only a healthcare professional who knows your medical history can provide personalised guidance.