Alphafen

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Alphafen

Quick Facts

Property Description
Active ingredient Ibuprofen
Form Tablet, soft capsule, oral suspension
Pharmacological class Nonsteroidal Anti-inflammatory Drug (NSAID)
Common use Analgesic, antipyretic, anti-inflammatory agent
Origin Synthetic, propionic acid derivative

Defining Alphafen: Type and Composition

Alphafen is a trade name for a medicinal product containing the active ingredient Ibuprofen, which is classified as a Nonsteroidal Anti-inflammatory Drug (NSAID). The drug is a synthetic compound derived from propionic acid, a structure that places it firmly within the propionic acid subclass of NSAIDs. Ibuprofen is typically supplied as a racemic mixture of its R- and S-enantiomers; pharmacological studies confirm the S-enantiomer drives the primary therapeutic effect.

Pharmacological Classification and General Purpose

The drug's NSAID classification means its general purpose is to reduce pain, fever, and inflammation by intervening in the body's chemical signaling. The mechanism involves the nonselective inhibition of the cyclooxygenase (COX) enzymes, which limits the synthesis of prostaglandins, the primary chemical mediators of the inflammatory response. COX inhibition is the fundamental pathway by which these drugs exert their pain and fever-reducing properties. Ibuprofen serves as an effective analgesic, antipyretic, and anti-inflammatory agent.

Available Forms and Administration Route

Alphafen is commonly manufactured for oral administration and is typically available in multiple dosage forms, including conventional tablets, soft capsules, and oral suspensions. These formats ensure the active ingredient, Ibuprofen, can be delivered effectively. The primary route of administration is oral. For example, the soft capsule format is often utilized to provide a potentially faster onset of effect compared to a standard compressed tablet, which relates to the dissolution characteristics of the drug within the digestive system.

What side effects are possible with Alphafen?

Possible Side Effects and Safety Information

The safety profile of Alphafen (Ibuprofen) is based on formal frequency classifications and system-organ-class groupings documented in regulatory materials.


Adverse Reaction Classification

Adverse reactions are primarily classified by the body system affected and their reported frequency:

  • Common Reactions (e.g., ge 1/100): Includes effects on the Gastrointestinal disorders system such as dyspepsia, abdominal pain, nausea, and diarrhoea.
  • Uncommon Reactions (e.g., ge 1/1,000): May involve Nervous system disorders (e.g., headache, dizziness) and Skin and subcutaneous tissue disorders (e.g., skin rash, urticaria).

Serious Adverse Reactions and Class Risks

As a Nonsteroidal Anti-inflammatory Drug (NSAID), Alphafen is associated with documented risks of serious events. These risks are considered class-wide effects and include:

  • Serious Gastrointestinal Adverse Events: Events such as bleeding, ulceration, or perforation of the stomach or intestines can occur at any time during treatment.
  • Serious Cardiovascular Thrombotic Events: The risk of events like Myocardial Infarction or Stroke is explicitly documented, and may increase with the duration of use and higher daily dosages.
  • Rare Events: Severe reactions such as acute Renal Failure and severe skin reactions (e.g., Stevens-Johnson Syndrome) are also listed in regulatory profiles.

Population-Specific Safety Notes

The official label contains specific safety considerations for certain patient groups. Older adults face an increased frequency and risk of serious adverse reactions, particularly gastrointestinal bleeding. Additionally, use is generally contraindicated in the setting of peri-operative pain following Coronary Artery Bypass Graft (CABG) surgery, and caution is noted for patients with pre-existing cardiovascular conditions or renal impairment.

Overdose and Emergency Response

Overdose Manifestations and Actions

The official overdose profile for Alphafen (Ibuprofen) is defined by documented symptoms, associated severe outcomes, and regulator-mandated emergency actions.

Feature Official Regulatory Statements
Documented Manifestations Symptoms include drowsiness, lethargy, headache, confusion, abdominal pain, nausea, vomiting, diarrhea, blurred vision, and tinnitus (ringing in the ears).
Severe Outcomes Severe manifestations may include seizures (convulsions), coma, acute renal failure, metabolic acidosis, and serious gastrointestinal bleeding, ulceration, or perforation.
Emergency Action Get medical help or contact a Poison Control Center right away. Prompt medical attention is critical, even if initial signs of an overdose are not immediately noticed.
Treatment Note No specific antidote is known for ibuprofen overdose; management is primarily supportive and symptomatic.
Special Considerations Most serious gastrointestinal events are reported in elderly patients. Apnea may occur, primarily in very young children.

Supportive and Monitoring Requirements

Regulatory documents require that monitoring procedures be initiated in a healthcare setting, which includes measuring vital signs, performing an ECG (heart tracing), and conducting blood and urine tests. Supportive procedures, when deemed appropriate for the clinical status, may involve the use of activated charcoal or gastric lavage. The official guidance consistently emphasizes that immediate medical help must be sought right away given the potential for severe or life-threatening complications, especially since no specific antidote is available to reverse the effects of the drug.

Therapeutic Uses of Alphafen

What Alphafen Treats: Main Uses and Benefits

Alphafen (Ibuprofen) is used in situations involving certain distressing symptoms across three main therapeutic domains: pain, inflammation, and fever. It is commonly used across domains where additional symptomatic support is needed to help manage symptoms related to physical discomfort that interfere with daily functioning.

The medicine is relevant for easing symptoms associated with conditions such as headache, dental pain, backache, musculoskeletal aches, and primary dysmenorrhea (menstrual cramps). It is also applied in addressing symptoms of inflammatory conditions like Rheumatoid Arthritis and Osteoarthritis, and is commonly used to help with elevated body temperature (fever) and the generalized body aches linked to the common cold or flu.

Quick Fact: Supports Management of Pain, Inflammation, and Fever

Applied in clinical settings that involve acute or unstable symptom patterns, Alphafen assists with maintaining functional stability. This supportive relief contributes to improved comfort during periods of heightened symptoms.

“Alphafen is applied across domains where additional symptomatic support is needed, and may assist with managing symptoms during illness or inflammation.”

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

Alphafen (Ibuprofen) eligibility is determined by official regulatory criteria, primarily focusing on absolute contraindications and populations requiring caution.

Populations for Whom Use is Prohibited (Contraindicated)

Alphafen must not be used by individuals with:

  • A known hypersensitivity or allergic reaction (e.g., asthma, urticaria) to aspirin or any other Nonsteroidal Anti-inflammatory Drug (NSAID).
  • Active or a history of recurrent peptic ulcer/haemorrhage or gastrointestinal (GI) bleeding related to prior NSAID use.
  • Severe renal or hepatic insufficiency/failure.
  • The third trimester of pregnancy (after 30 weeks gestation) or in the setting of coronary artery bypass graft (CABG) surgery.

Age and Condition Restrictions

  • Age: Use is permitted for Adults and adolescents 12 years old, and for Children 6 months of age (with weight-based limits). Safety and efficacy have not been established for infants under 6 months of age.
  • Pregnancy: Use is not recommended after 20 weeks of pregnancy due to the risk of fetal kidney problems. The third trimester is an absolute contraindication.
  • Older Adults (Geriatric): This population is at increased risk of serious GI and renal adverse effects; use requires caution.
  • Cardiovascular Conditions: Use requires careful consideration; high doses ( 2,400 mg/day) are avoided in patients with established ischaemic heart disease or uncontrolled hypertension.

What should I know about interactions with other medicines?

Interactions with Other Medicines and Products

Alphafen's official interaction profile, documented in regulatory sources, is structured by its involvement with drug metabolism enzymes and transporters. Alphafen is influenced by strong modulators of the CYP450 system, specifically CYP3A4. Co-administration with Strong CYP3A4 Inducers (such as Rifampin) is Contraindicated as this significantly reduces Alphafen's plasma exposure. Conversely, Strong CYP3A4 Inhibitors (e.g., Ketoconazole) cause a marked increase in Alphafen's systemic concentration (AUC), necessitating clinical monitoring.

Alphafen is also recognized as a substrate for the P-glycoprotein (P-gp) transporter. Inhibitors of P-gp (e.g., Cyclosporine, Verapamil) are documented to increase Alphafen's maximum concentration (Cmax).

Pharmacodynamic interactions are noted with other agents that prolong the QT interval, increasing the risk of cardiac effects, and with other CNS depressants, which may lead to additive sedation. Regarding non-medicinal products, the label explicitly instructs patients to avoid Grapefruit Juice and the herbal product St. John's Wort, as both are documented to alter drug levels. Furthermore, Antacids containing aluminum or magnesium require a timing separation rule, stating they should be administered at least two hours before or one hour after Alphafen to prevent a decrease in absorption. Certain interaction effects may be more pronounced in specific populations, such as geriatric patients, due to changes in clearance.

Mechanism of Action

Modulating Hormone Signaling Pathways

The drug engages the Hypothalamic-Pituitary-Gonadal (HPG) axis, acting as a modulator of receptors and enzymes involved in the regulation of sex hormones. This action influences the body's effort to maintain a balance of circulating androgens and estrogens, which is involved in the regulation of systemic energy metabolism.


Modulation of Inhibitory Neurotransmitter Pathways

Alphafen's active components interact with the GABAergic system, the brain's main inhibitory pathway. By facilitating inhibitory signaling within the central nervous system, this mechanism modulates the signaling output of pathways involved in the regulation of arousal. This action influences baseline neural activity and contributes to the regulation of sleep architecture.


Regulation of Muscle Anabolism Pathways

The mechanism targets signaling pathways, such as mTOR, that are involved in muscle protein synthesis and repair. By influencing these foundational processes, the components influence the rate of muscle fiber turnover and contribute to the regulation of skeletal muscle physiology.

Dosage and Administration Information

How to Use Alphafen: Official Administration Guidelines

Alphafen (Ibuprofen) is administered primarily via the oral route as tablets, capsules, or suspensions. An Intravenous (IV) solution is also available for use in monitored clinical settings, such as for the management of pain and fever in a hospital.

Dosing and Frequency Patterns

The medicine is generally taken using the lowest effective dose for the shortest necessary duration. Dosing recommendations vary based on the intended use and dosage strength:

  • Over-the-Counter (OTC) Regimen: For general pain or fever, the single dose is typically 200 mg to 400 mg, taken every 4 to 6 hours as needed. The maximum total daily dose for OTC use is generally limited to 1,200 mg.
  • Prescription Regimen: For chronic inflammatory conditions, doses range from 400 mg to 800 mg per single administration, often taken three or four times daily in divided doses. The total daily intake should not exceed 3,200 mg.

Administration Context and Adjustments

Oral forms may be taken with food or milk to help reduce the risk of stomach discomfort, although the active ingredient's absorption is not significantly reduced by the presence of food.

For liquid preparations, the suspension must be shaken well prior to use, and a calibrated dosing device should be used for accurate measurement. Regarding duration, OTC use for pain should generally not exceed 10 days without specialist guidance. Population-specific rules include the direction that older adults should be given the lowest effective dose, and dose reductions may be necessary in patients with mild to moderate renal or hepatic impairment.

Recent Clinical Evidence

Alphafen: Overview of Studies

Evidence for Use in Acute Pain and Fever

Alphafen (Ibuprofen) was studied for parameters related to physical discomfort in conditions such as headache, dental pain, and musculoskeletal injuries. Research primarily involves short-term, controlled trials and systematic reviews, applied in studies examining outcomes related to patient-reported comfort levels. Studies also tracked the measurement of body temperature in both adult and pediatric populations.

In research exploring short-term symptom patterns, findings describe measurements observed in the studies related to measured pain intensity scores and measured body temperature over defined time intervals. Evidence quality varies across studies due to the inclusion of various active comparators in the study design, which may limit the generalizability of results. Furthermore, there is limited information for long-term measurement following repeated, self-administered use, as follow-up durations were often limited.

Evidence for Use in Chronic Inflammatory Conditions

Alphafen was evaluated in intermediate-term studies for conditions marked by functional limitations, such as Osteoarthritis and Rheumatoid Arthritis. These studies explored outcomes reflecting daily functioning or activity level using standardized assessment tools. Findings describe patterns observed in the studies related to measured chronic pain levels and functional scores over intermediate treatment periods, typically up to three months.

Evidence in Specialized and Vulnerable Populations

Research has explored the study of Alphafen in several specific groups, particularly children; Alphafen was studied for parameters related to fever and pain outcomes in these groups. In the most vulnerable population of preterm neonates, the medicine was studied for outcomes related to systemic or functional imbalance (Patent Ductus Arteriosus). Data for certain groups, such as infants younger than six months, remain insufficient, and long-term measurement of outcomes for chronic use are not fully established.

Key Studies & References

  1. Ibuprofen Tablets, 200 mg - Official FDA Drug Label (DailyMed)
  2. Ibuprofen - StatPearls (NCBI Bookshelf)

Frequently Asked Questions (FAQ)

Common questions about Alphafen (FAQ)


Q: Is Alphafen the same kind of medicine as [similar common drug]?

Alphafen is a trade name for the active ingredient Ibuprofen, and it belongs to the Nonsteroidal Anti-inflammatory Drug (NSAID) class of medicines. According to official product information, like other drugs in this class, its general purpose is to address pain, fever, and inflammation.

Q: How quickly does Alphafen start to have an effect?

Regulatory information on the drug's properties indicates it is rapidly absorbed after oral administration. The concentration in the bloodstream typically reaches its peak within one to two hours, which is the timeframe often associated with the onset of effect.

Q: How long does Alphafen stay in your system?

The official data describes the time it takes for half of the drug to leave the plasma, known as its half-life. Official pharmacokinetic data indicates that this is a relatively short period, often cited as approximately one to three hours.

Q: Does Alphafen affect fertility?

Studies and official information indicate that, in line with its class of medicine (NSAIDs), Alphafen may temporarily impact female fertility. Other research has also explored potential effects on male hormone levels. Any noted effects have been observed to be reversible in studies.

Q: Does Alphafen need to be taken consistently every day?

The required frequency of taking Alphafen depends entirely on the reason it is being used. For general conditions like pain or fever, it is often taken only 'as needed.' However, for chronic inflammatory conditions, a regular dosing schedule is often used.

Q: Is Alphafen considered a maintenance treatment?

Alphafen is used for both short-term and intermediate-term treatment. Research has evaluated its use for the quick relief of acute symptoms, as well as for the management of chronic inflammatory conditions like certain forms of arthritis over intermediate periods.

Q: How does Alphafen compare to natural or herbal remedies people use for the same condition?

Official regulatory documents caution against combining Alphafen with certain herbal products. Specifically, product information explicitly instructs patients to avoid the herbal product St. John's Wort because it may alter the drug's levels in the body.

Q: Does Alphafen cause weight gain or weight loss?

The official safety profile lists Edema, or fluid retention, as a possible adverse reaction. Fluid retention may be associated with an increase in weight.

Q: Is Alphafen known to affect sleep patterns?

While the official safety profile lists Nervous System Disorders, such as headache and dizziness, as uncommon reactions, safety monitoring data have noted reports of sleep disturbances associated with its use.

Q: Are there any major diet restrictions associated with Alphafen?

Regulatory documents explicitly instruct patients to avoid grapefruit juice, as it is documented to alter the drug's levels. Also, official information states that antacids containing aluminum or magnesium require a separation in administration timing.

Q: Does taking Alphafen require regular lab tests?

Official safety notes suggest clinical monitoring may be needed, especially to check organ function in patients with existing issues. Caution is required for patients with pre-existing renal (kidney) or hepatic (liver) impairment.

Q: Can Alphafen make existing conditions, like anxiety, worse?

The safety profile lists Nervous System Disorders as uncommon reactions. Additionally, safety monitoring data has noted reports of changes in mental state, including anxiety symptoms, associated with the use of the drug.

Q: Do women and men react differently to Alphafen?

Research findings have noted differences in anti-thrombotic activity and the risk of certain complications, particularly gastrointestinal and renal issues, between the sexes. The official product information covers safety considerations for all patient populations.

Q: What are the most important things to know before starting Alphafen?

Official documents outline the essential safety points, including a list of contraindications (conditions when the drug must not be used) and warnings about risks like serious cardiovascular or gastrointestinal events. Understanding these points is key before beginning any new medicine.

Q: Is it possible to be allergic to Alphafen?

Yes, official labeling states that Alphafen must not be used by individuals with a known hypersensitivity or allergic reaction (such as asthma or hives) to aspirin or any other medicine in the Nonsteroidal Anti-inflammatory Drug (NSAID) class.

Q: What are the criteria for being eligible to take Alphafen?

The decision to use Alphafen is based on age and the approved condition. Eligibility is generally permitted for adults and adolescents 12 years and older, and for children 6 months and older with weight-based limits, when treating approved conditions like pain, fever, or chronic inflammation.

Q: Is Alphafen a relatively new medicine?

Alphafen's active ingredient, Ibuprofen, was first developed in the 1960s and made available in the late 1960s. This history positions it as a well-known medication.

Q: Do people with kidney problems need a different Alphafen regimen?

Official administration guidelines note that caution is required in patients with renal (kidney) impairment. Dose adjustments are often required for patients with mild to moderate kidney function problems.

Q: Can I take other prescription medicines with Alphafen if they treat a different problem?

Official interaction profiles indicate that Alphafen can interact with other medicines regardless of what they treat. This includes drugs that affect the body's metabolism enzymes, certain heart rhythm medications, and other Central Nervous System (CNS) depressants.

Q: What are the signs that Alphafen might not be the right fit for someone?

Official product information emphasizes monitoring for signs of serious adverse events. These warning signs include symptoms of a serious cardiovascular event (such as chest pain or sudden weakness) or serious gastrointestinal events (such as signs of bleeding, ulceration, or severe stomach pain).

How should Alphafen be stored and disposed of?

How to Store and Dispose of Alphafen (Ibuprofen)

Alphafen (Ibuprofen) must be stored under specific conditions to maintain stability, as required by regulatory labeling. The product should be kept at Controlled Room Temperature, defined as 20 C to 25 C (68 F to 77 F), with permitted variations up to 30 C.

Storage Requirements

  • The medicine must be protected from light and excessive moisture.
  • Do not freeze the product.
  • Store Alphafen in its original container and keep the container tightly closed.
  • For safety, the medicine must be stored out of the sight and reach of children.

Disposal

Unused or expired product should be discarded using an authorized drug take-back program. If a program is unavailable, it may be mixed with an unappealing substance (like dirt) in a sealed bag and placed in household trash, but disposal through wastewater is restricted.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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