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Gida / Magunguna A–Z / Guaranine

Guaranine

helps restore mental alertness or wakefulness when experiencing fatigue or drowsiness.

Checked against the official label · Updated

Sold without prescription in some countries Oral Safety alerts on record

How to use Guaranine

What the official label says. If a doctor prescribed it, follow the prescription. Your pack's leaflet comes first if it is different.

Who it is for

Helps restore mental alertness or wakefulness when experiencing fatigue or drowsiness

How to take it and how often
  • Adults and children 12 years and over: take 1 tablet not more often than every 3 to 4 hours
  • Children under 12 years: do not use
Talk to a doctor first if

for children under 12 years of age as a substitute for sleep

Warnings

For occasional use only Caffeine warning: The recommended dose of this product contains about as much caffeine as a cup of coffee. Limit the use of caffeine-containing medications, foods, or beverages while taking this product because too much caffeine may cause nervousness, irritability, sleeplessness, and, occasionally, rapid heart beat. Do not use for children under 12 years of age as a substitute for sleep Stop use and ask a doctor if fatigue or drowsiness persists or continues to recur. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

Possible side effects

Fatigue or drowsiness persists or continues to recur.

Pregnancy and breastfeeding

If pregnant or breast-feeding, ask a health professional before use.

How to store it

Each tablet contains: calcium 35 mg TAMPER EVIDENT: DO NOT USE IF OUTER PACKAGE IS OPENED OR BLISTER IS TORN OR BROKEN store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF) see end flap for expiration date and lot number Keep out of reach of children.

If you miss a dose

Take it when you remember, unless it is nearly time for the next dose. Then skip the missed one. Never take two doses at once to make up for it. Check your leaflet, as some medicines are different.

From the official U.S. FDA label for this active ingredient. Your pack may have a different strength, so always read its leaflet. If a doctor prescribed it, follow the prescription. Ask a pharmacist if you are unsure. Label dated 2025-09-04.

Registered products

Nigeria (NAFDAC)

NAFDACMixanal Caplet 04-4184

Other countries: check your pack's registration number and we point you to your regulator.

Safety alerts and recalls

Acetaminophen 500mg Caffeine 65mg caplets, packaged as 2 caplets per packet further packaged in a 50-count box, AERO TAB, Manufactured for AERO HEALTHCARE US, Valley-Cottage, NY, 1U.S. FDA Class II
17 Oct 2025 · Aero Healthcare · OngoingLabeling: Label Mix-up. This issue affects the outer box labeling only. The box incorrectly states the ingredients Acetaminophen 500mg and Caffeine 65mg. The inner pouch correctly states the ingredients are Aspirin (NSAID)*500mg and Caffeine 32.5mg.
Healthy Living Acetaminophen, Aspirin (NSAID) and Caffeine, tablets USP, 250 mg/250 mg/65 mg, 100-count bottles, Distributed by: Aurohealth LLC, 279 Princeton-Hightstown Road, EastU.S. FDA Class I
11 Jul 2024 · Aurobindo Pharma USA Inc · OngoingLabeling: Missing Label - some bottles are missing the the manufacturers label that includes the drug facts information.
Migrenol Caplet (Acetaminophen 500 mg, Caffeine 65 mg) Bulk Container, ULTRAtab Laboratories, Inc., Highland, NY NDC 62959-565-00U.S. FDA Class II
26 Jan 2022 · ULTRAtab Laboratories, Inc. · TerminatedCGMP Deviations
HPC Tablet (Acetaminophen 110 mg, Aspirin 162 mg, Caffeine 32.4 mg, Salicylamide 152 mg) Bulk Container, ULTRAtab Laboratories, Inc., Highland, NY NDC 62969-242-00U.S. FDA Class II
26 Jan 2022 · ULTRAtab Laboratories, Inc. · TerminatedCGMP Deviations

A recall usually affects certain batches only. Compare the lot number on your pack.

Check your pack of Guaranine

Type the registration number on the pack, or scan it with your camera.

Or take photos of the pack
3 free checks left today Official sources: U.S. FDA · EMA (EU) · Health Canada · WHO alerts

Questions about Guaranine

What is Guaranine used for?

helps restore mental alertness or wakefulness when experiencing fatigue or drowsiness (From the official U.S. FDA label.)

How do I take Guaranine?

Follow your prescription or the leaflet in your pack. The official label says: adults and children 12 years and over: take 1 tablet not more often than every 3 to 4 hours children under 12 years: do not use…

Do I need a prescription for Guaranine?

In many countries Guaranine is sold without a prescription in some strengths. Rules differ by country, so ask a pharmacist.

What brands contain Guaranine?

Guaranine is sold under names such as Pamprin Max Formula, Stanback Headache Powder Reformulated Jan 2011, Capacet, Bc Arthritis, Bc Original Formula, Arthriten Inflammatory Pain, Exaprin, Backaid Ipf. Brand names differ between countries.

What are the side effects of Guaranine?

The official label lists: fatigue or drowsiness persists or continues to recur. Tell your doctor about any side effect that bothers you or does not go away.

Can children take Guaranine?

The label gives a separate dose by age: children 12 years and over: take 1 tablet not more often than every 3 to 4 hours children under 12 years. Check the pack or ask a pharmacist.

Can I take Guaranine when pregnant or breastfeeding?

If pregnant or breast-feeding, ask a health professional before use. Ask your doctor or midwife first.

How should I store Guaranine?

each tablet contains: calcium 35 mg TAMPER EVIDENT: DO NOT USE IF OUTER PACKAGE IS OPENED OR BLISTER IS TORN OR BROKEN store at 25ºC (77ºF); excursions permitted between 15º-30ºC (59º-86ºF) see end flap for expiration date and lot number

How can I check that my Guaranine is genuine?

Scan the registration number on your pack with PillVera (NAFDAC number in Nigeria, NDC in the United States, DIN in Canada), check the expiry date and buy only from licensed pharmacies.

Sources

This page shows what official sources say, in plain words. It is not medical advice: your prescription and your doctor or pharmacist come first. Brand names, strengths and rules differ between countries.