Safety
Maxforce Side Effects: Label Warnings and Safety Notes
Ingredient sources list mostly mild Maxforce side effects, such as stomach upset and jitters, with rarer liver and blood pressure effects.
The label asks anyone pregnant, nursing, taking medications or with a medical condition to consult a doctor. L-arginine may be risky with nitrates or sildenafil.
Written by the Maxforce label deskUpdated
The label warning01
What side effects does Maxforce list?
The label lists no specific side effects. It carries one general warning: if you are pregnant or nursing, take medications or have a medical condition, consult your doctor before using it.
It adds that you should discontinue use and consult your doctor if any adverse reaction occurs. That is a legal minimum, not a safety profile. The tub gives no rates, no list of symptoms and no list of interacting medicines.
So the only way to guess at side effects is to read what is known about each ingredient. We did that, and the table below shows the result. It reflects the ingredients, not the gummy, because the gummy has never been studied.
- Get care nowChest pain, fainting or trouble breathingCall 911. Do not wait to see if it passes.
- Get care nowSudden loss of vision or hearingStop and get urgent care. FDA's tainted-product notices list this among the harms of hidden drugs.
- Get care nowAn erection that will not go awayGet urgent care. Priapism is listed among the case reports for tribulus and for erectile-dysfunction drugs.
- Call your doctor soonYellow skin or eyes, dark urine, belly painPossible liver injury. Ashwagandha and green tea extract have rare reports.
- Call your doctor soonA racing or irregular heartbeatStop the gummies. Caffeine, green tea and horny goat weed all appear in the cautions.
- Call your doctor soonRash, swelling or itchingStop and call. Any new reaction is a reason to stop, as the label says.
- Ask before you startYou take nitrates or any ED medicineLow blood pressure is the worry with L-arginine.
- Ask before you startYou are having surgeryAsk whether to pause it; several herbs can affect blood pressure and bleeding.
- Ask before you startYou take any other prescriptionThe label asks you to consult a doctor first if you take medications.
By ingredient02
Which Maxforce ingredients have known cautions?
Every ingredient except catuaba and muira puama has a documented caution, and those two simply have little safety data.
| Ingredient | Cautions reported | Source |
|---|---|---|
| Muira puama | Safety research limited | (Drugs.com, Muira puama) |
| Maca | May interfere with testosterone lab tests; ask first with hormone-sensitive cancer; may not be safe in pregnancy | (MSK, Maca) |
| Catuaba | No human safety data | (Antioxidant, anticholinesterase and antifatigue effects of Trichilia catigua (BMC CAM, 2018)) |
| Green tea extract | Nausea, stomach upset, higher blood pressure; rare liver injury; can lower the effect of some drugs | (NCCIH, Green Tea) |
| Caffeine | Racing heart, jitters, poor sleep, upset stomach with larger amounts | (FDA, Caffeine: how much is too much?) |
| Ashwagandha | Rare liver injury; thyroid effects; several drug interactions; avoid in pregnancy | (NIH ODS, Ashwagandha) (LiverTox, Ashwagandha) |
| L-arginine | Nausea, bloating, diarrhea, headache; low blood pressure with nitrates or sildenafil; not after a recent heart attack | (Mayo Clinic, L-arginine) |
| Tribulus | Stomach irritation; case reports of liver, kidney and nerve harm and priapism | (MSK, Tribulus terrestris) |
| Horny goat weed | Sweating, rapid or irregular heartbeat; avoid with heart disease per MSK | (MSK, Epimedium (horny goat weed)) |
"Rare" matters. Most people who take these ingredients at small doses have no serious problem. One gummy also holds only small amounts of the last four lines, at most 5 mg each, so the real-world risk per gummy is probably lower than the table suggests. We say "probably" because nobody has measured it.
The big one03
Is Maxforce safe with nitrates or Viagra?
Ask your doctor before combining them. Mayo Clinic says L-arginine with nitrates or sildenafil might make blood pressure too low (Mayo Clinic, L-arginine).
Nitrates, such as nitroglycerin, are prescribed for chest pain. Sildenafil is the drug in Viagra and Revatio. MedlinePlus says nitrates and sildenafil must not be combined (MedlinePlus, Sildenafil). A Maxforce gummy holds at most 5 mg of L-arginine, so the amount is tiny. The label still asks anyone taking medications to talk to a doctor first, and so do we.
If you are told to avoid a supplement, tell your doctor. Do not drop a heart medicine to make room for a gummy.
Maxforce: from $49 a bottle30 gummies a bottle · 2, 3 or 6 bottles · free US shipping on 3 or 6 · 60-day money-back guarantee
See packsIf something goes wrong05
What should you do if you have a bad reaction to Maxforce?
Stop taking it, get care if the reaction is serious, and tell FDA through its Safety Reporting Portal.
Stop and keep the tub
Keep the tub, the receipt and any lot code. The label says to discontinue use and consult your doctor.
Get care if it is serious
Call 911 for chest pain, fainting or trouble breathing.
Report it
FDA asks consumers to file a report at safetyreporting.hhs.gov, even with partial information (FDA, How to Report a Problem with Dietary Supplements).
Tell the order desk
Call +1 (302) 200-3480 about a refund, and mention the reaction.
FAQ06
Maxforce questions people ask
Does Maxforce cause headaches?
Headache is listed for L-arginine in Mayo Clinic's side-effect list, and caffeine can also cause it. The gummy holds at most 5 mg of L-arginine and 5 mg of caffeine, so a headache is possible but unlikely for most. Stop and consult your doctor if one persists.
Can Maxforce raise your blood pressure?
Possibly in sensitive people. Green tea extract may raise blood pressure, and caffeine can too. L-arginine can do the opposite and lower it, especially with nitrates. If you have blood pressure problems, ask your doctor before starting.
Can Maxforce upset your stomach?
It might. Sorbitol and sugar alcohols can loosen stools, and L-arginine can cause nausea, bloating and diarrhea at larger doses. A gummy holds little L-arginine, but if your stomach reacts, stop and talk to a doctor.
Can Maxforce hurt your liver?
Rare liver injury is reported with concentrated ashwagandha and green tea extracts, usually starting 2 to 12 weeks after beginning. Watch for yellow skin or eyes, dark urine or belly pain, and call a doctor if they appear. Doses in one gummy are small.
Are there Maxforce complaints?
We list none because we cannot verify them. BBB and review sites may carry complaints, and reading several sources is wise. FTC advises checking reviewer history and sudden bursts of reviews. The refund terms are on our guarantee and refund pages.
Is Maxforce safe to take long term?
No one knows. The gummy has no long-term study, and sources describe ashwagandha as safe for about three months, with long-term safety unclear. Review how you feel every 30 days and see a doctor for regular checkups.
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Maxforcevitality, a Maxforce U.S. retail desk, not by the manufacturer or the distributor named on the label. We earn money when you buy through our order links.
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