Novarel Drug Interactions: What You Need to Know

If you've been prescribed Novarel (Chorionic Gonadotropin for injection), you might be wondering whether it interacts with other medications, supplements, or tests. While Novarel has fewer drug interactions than many medications, there are some important ones to know about — especially if you're using it as part of a fertility treatment protocol.

This guide covers the key interactions, what to watch for, and what to tell your doctor before starting treatment.

How Drug Interactions Work

A drug interaction happens when one substance changes how another works in your body. Interactions can:

• Make a medication less effective
• Make side effects worse
• Create new side effects that neither drug would cause alone
• Affect the timing of a treatment protocol

With Novarel, the biggest concerns aren't traditional drug-drug interactions — they're about timing coordination with other fertility medications and interference with diagnostic tests.

Medications That Interact with Novarel

Major Interactions: Timing-Critical Fertility Medications

Ganirelix (Ganirelix Acetate) and other GnRH Antagonists

GnRH antagonists like Ganirelix and Cetrorelix (Cetrotide) are used in fertility cycles to prevent premature ovulation. These drugs suppress your body's LH surge, and since Novarel mimics LH, the timing between stopping the antagonist and giving the trigger shot must be precisely coordinated by your fertility team.

This isn't a "don't take them together" situation — it's a "the timing must be exact" situation. Your reproductive endocrinologist will manage this carefully.

Menotropins (Menopur)

Menotropins contain both FSH and LH and are used to stimulate follicle development before the Novarel trigger shot. They're routinely used together, but the dosing and timing must be carefully managed to avoid ovarian hyperstimulation syndrome (OHSS).

Moderate Interactions

Androgens and Anabolic Steroids

Testosterone and other androgens can have additive effects when combined with hCG. In men using Novarel for hypogonadism or fertility preservation, the combination of external testosterone plus hCG-stimulated testosterone may lead to higher-than-intended androgen levels. Your doctor should monitor hormone levels regularly if you're on both.

Common androgens to be aware of:

• Testosterone cypionate (Depo-Testosterone)
• Testosterone enanthate (Delatestryl)
• Testosterone gel (AndroGel, Testim)
• Nandrolone (Deca-Durabolin)
• Oxandrolone (Anavar)

Pregnancy Tests

This is less a "drug interaction" and more a critical practical issue: Novarel is hCG, and pregnancy tests measure hCG. After a Novarel injection, you will test positive on a pregnancy test for up to 10-14 days, regardless of whether you're actually pregnant.

This can cause false hope or unnecessary anxiety. Your fertility clinic will tell you exactly when to take a pregnancy test after your trigger shot — typically by measuring a blood hCG level (beta-hCG) at a specific number of days post-transfer or post-IUI.

Supplements and Over-the-Counter Products to Watch

Novarel doesn't have significant interactions with most over-the-counter medications or supplements. However, keep these in mind:

• DHEA supplements — DHEA is a precursor to testosterone and estrogen. Some fertility patients take it to improve egg quality, but combining it with hCG could increase androgen levels. Discuss this with your doctor.
• Pain relievers — During fertility treatment cycles, many doctors recommend acetaminophen (Tylenol) over ibuprofen (Advil, Motrin) or naproxen (Aleve). NSAIDs may interfere with ovulation and implantation, though this isn't specific to Novarel.
• Herbal supplements — Vitex (chasteberry), black cohosh, and other hormonal herbs could theoretically interfere with fertility hormone balance. Tell your doctor about any herbal supplements you take.

Food and Drink Interactions

There are no known food interactions with Novarel. You don't need to take it with food or avoid any specific foods.

That said, during fertility treatment, general wellness advice applies:

• Stay well-hydrated, especially after the trigger shot
• Limit alcohol during treatment cycles
• Maintain a balanced, high-protein diet to help manage bloating

What to Tell Your Doctor Before Starting Novarel

Before your first Novarel injection, make sure your doctor knows about:

1. All medications you're taking — including prescription, over-the-counter, and supplements
2. Any testosterone or androgen therapy — especially if you're a man using hCG alongside TRT
3. History of blood clots — Novarel may increase thromboembolic risk, especially in women who develop OHSS
4. Heart disease, asthma, migraines, or seizure disorders — these conditions require extra caution with hCG
5. Kidney problems — impaired renal function may affect how your body processes the medication
6. Allergies — especially any prior reaction to hCG products
7. If you could be pregnant — Novarel may cause fetal harm and should not be used during confirmed pregnancy

For a full overview of Novarel's uses and who should avoid it, read our guide on what Novarel is and how it's used.

Final Thoughts

Novarel has relatively few traditional drug interactions, but timing coordination with fertility medications and awareness of its effect on pregnancy tests are critical. The most important thing you can do is communicate openly with your doctor about everything you're taking.

If you're having trouble finding Novarel in stock, Medfinder can help you locate it at a pharmacy near you. And for information on alternatives or savings options, we've got you covered.