If you are taking a medication that affects your sexual health — whether that means changes in libido, arousal, or performance — what you drink matters more than you might think. A single everyday beverage can interfere with how your body processes those drugs, sometimes blunting their intended effects or amplifying side effects you are already dealing with.
Here is the drink to avoid if you are on any medication linked to sexual side effects, and what you can reach for instead.
Grapefruit juice: the silent disruptor
The one drink experts consistently flag is grapefruit juice. It is not that grapefruit juice is unhealthy — in fact, it is rich in vitamin C and antioxidants. The problem is how it interacts with certain medications, including those prescribed for depression, high blood pressure, and erectile dysfunction. These are all drug classes that can carry sexual side effects like lowered libido, delayed orgasm, or difficulty maintaining an erection.
Grapefruit juice contains compounds called furanocoumarins that inhibit an enzyme in your intestines (CYP3A4) that normally breaks down many drugs. When that enzyme is blocked, more of the medication enters your bloodstream. That can mean higher drug levels than intended, which may worsen side effects — including the sexual ones — or even create new safety risks.
Which medications are affected
The list of drugs that interact with grapefruit juice is long, but the ones most relevant to sexual health include:
- SSRI antidepressants such as sertraline, fluoxetine, and citalopram — commonly linked to reduced libido and delayed orgasm.
- Benzodiazepines like diazepam and alprazolam, which can dampen sexual response.
- Blood pressure medications including certain calcium channel blockers, which may cause erectile difficulties.
- ED drugs such as sildenafil (Viagra) and tadalafil (Cialis) — grapefruit juice can increase their concentration, raising the risk of side effects like flushing, headache, and priapism.
If you are on any of these and have noticed sexual changes — or want to avoid them — skipping grapefruit juice is a simple but effective step.
A single glass of grapefruit juice can interfere with drug metabolism for more than 24 hours. That makes it tricky to simply "time" your consumption.
Other citrus juices: are they safe?
Not all citrus fruits act the same way. Orange juice, for example, does not contain the same furanocoumarins and is generally considered safe with most medications. Lime and lemon juice also pose minimal risk in typical amounts.
However, Seville oranges (often used in marmalade) and pomelos do have similar interaction potential. If you enjoy these, check with your pharmacist before making them a regular part of your diet while on medication.
What to drink instead
The safest option is plain water — it supports every system in your body without interfering with drug metabolism. Other good choices include:
- Herbal teas (check that none interact with your specific medication)
- Unsweetened cranberry juice (in moderation)
- Vegetable juices like tomato or carrot juice
- Plain or sparkling water with a squeeze of lemon or lime
A quick note on alcohol
While grapefruit juice is the focus here, it is worth remembering that alcohol can also worsen sexual side effects from many medications — especially antidepressants and blood pressure drugs. If you drink, keep it moderate and check with your healthcare provider.
The bottom line: if you are taking any medication that affects sexual function, it is wise to avoid grapefruit juice entirely. Your liver and your sex life will thank you.
