Obsidan Fe++

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Obsidan Fe++

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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 Obsidan Fe++

Quick Facts

Property Description
Active Ingredient Ferrous Bisglycinate
Form Oral tablet or capsule
Pharmacological Class Anti-anemic medication (Mineral supplement)
Common Use Iron supplementation and replenishment
Origin Synthetic/Derived (Amino acid chelate)

What Type of Medication is Obsidan Fe++? (Identity and Class)

Obsidan Fe++ is fundamentally an anti-anemic medication and a nutritional supplement belonging to the pharmacological class of mineral replacements. The medicine is a single-ingredient product designed to supplement the body's essential mineral supply. This oral preparation, provided as a modern third-generation iron compound, is often clinically recognized for its improved profile when compared to older iron preparations. It serves the general purpose of maintaining adequate elemental iron (Fe^2+) levels, a crucial requirement often increased during periods such as growth spurts or pregnancy.

Composition: The Role of Ferrous Bisglycinate (Form and Composition)

The active ingredient in Obsidan Fe++ is the substance Ferrous Bisglycinate, which is a highly effective amino acid iron chelate for nutritional fortification. The compound is synthetic/derived, created by chemically binding the ferrous ion to two molecules of the amino acid glycine. This specific structure is the source of the product's primary differentiating factor: forming a chelated iron that is stable and minimizes adverse chemical interactions in the gastrointestinal tract. Amino acid iron chelates, such as Ferrous Bisglycinate, are efficacious in raising hemoglobin levels.

General Purpose: Why Use a Highly Bioavailable Iron Chelate? (High-Level Purpose and Mechanism)

The general purpose of using a chelated iron compound like the one in Obsidan Fe++ is to facilitate efficient replenishment of iron stores and support oxygen-carrying capacity throughout the body. The chelate structure facilitates superior bioavailability compared to common iron salts, meaning a greater percentage of the ingested iron is available for absorption. This enhanced absorption rate is key because it allows the body to effectively utilize the iron for maintaining normal energy metabolism and ensuring adequate production of healthy red blood cells. The formulation is thus designed to provide a highly reliable source of iron, particularly beneficial for patients with gastrointestinal sensitivity.

Regulatory References

  1. National Institutes of Health (NIH) Office of Dietary Supplements

What side effects are possible with Obsidan Fe++?

Possible Side Effects

Like all iron supplements, Obsidan Fe++ can cause side effects, primarily affecting the gastrointestinal tract. These effects are usually mild and temporary as the body adjusts to the medication.

Common Side Effects (Occurring in 1 to 10 in 100 patients):

System Side Effect
Gastrointestinal Stomach discomfort or pain
Nausea or Vomiting
Heartburn
Constipation or Diarrhea
Stool Appearance Darkening of the stool (This is a common and harmless effect due to unabsorbed iron)

Rare Side Effects (Occurring in 1 to 10 in 10,000 patients):

  • Hypersensitivity reactions: Symptoms such as skin rash (exanthema, urticaria) or itching.
  • Dental discoloration: Iron can cause temporary discoloration of the teeth.

Serious Safety Information

Overdose: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under the age of six. Keep this medication out of sight and reach of children. In case of suspected overdose, seek emergency medical attention immediately.

Black/Tarry Stools: While the stool commonly darkens due to iron, report to a healthcare professional if your stool is black and tarry, or contains red blood, as this could indicate gastrointestinal bleeding.

Interactions: Iron can decrease the absorption of certain other medications, including some antibiotics (like tetracyclines), bisphosphonates (for osteoporosis), and levothyroxine (for thyroid conditions). Conversely, drugs containing calcium, magnesium, or aluminum (like antacids) can reduce the absorption of iron. Always inform your doctor or pharmacist about all other medications, vitamins, or supplements you are taking.

Overdose and Emergency Response

Overdose and when to seek help

The information below summarizes the official descriptions of overdose for iron-containing products, such as Obsidan Fe++, as stated in government regulatory documents.

Documented Overdose Manifestations

Acute iron toxicity is formally described as a multi-stage event. The initial phase (0–6 hours) is characterized by severe gastrointestinal (GI) toxicity, including vomiting (potentially bloody), acute abdominal pain, and diarrhea. Signs of early systemic distress, such as hypotension (low blood pressure) and tachycardia (rapid heart rate), are also documented.

Following the latent phase, the overdose may progress to Systemic Toxicity, involving life-threatening outcomes such as profound shock, severe metabolic acidosis, acute hepatic necrosis (liver failure), and seizures.

When to Seek Urgent Medical Help

Official regulatory documents explicitly mandate immediate action for any suspected ingestion:

  • Call a doctor or poison control center immediately in the event of accidental overdose, even if no symptoms are apparent.
  • Seek emergency medical attention immediately if an individual has collapsed, is experiencing seizures, or displays severe symptoms of shock or breathing difficulty.

Regulators note that accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6 years old.

Official Management Notes

Hospitalization is required for assessment and monitoring. Management may include the use of the specific chelating agent deferoxamine and procedures such as whole bowel irrigation to aid in the clearance of unabsorbed product, as detailed in prescribing information.

Therapeutic Uses of Obsidan Fe++

What Obsidan Fe++ Treats: Main Uses and Benefits

Obsidan Fe++ (Ferrous Bisglycinate) supports the therapeutic need for iron replenishment, assisting with the systemic effects of iron deficiency. The primary function of iron is to help the body make hemoglobin, the protein in red blood cells that carries oxygen. This medication is commonly used to help with deficiency states and symptoms related to systemic imbalance.

It is commonly used to help with managing Iron Deficiency Anemia (IDA), correcting depleted iron stores, and addressing deficiencies linked to chronic blood loss or insufficient intake. By addressing the mineral deficit, Obsidan Fe++ supports the body's oxygen-carrying capacity, which contributes to improved systemic stability. Supporting the management of the deficiency contributes to easing symptom clusters that may become intense or disruptive, such as chronic fatigue, generalized physical weakness, and poor concentration.

This supplement is commonly used during life stages that impose a high physiological demand, including during pregnancy and lactation, and is often applied for patients with gastrointestinal sensitivity. The formulation may assist with managing common symptoms related to physical discomfort often associated with supplementation, which supports the patient's ability to cope more steadily during these periods.


Quick Fact: Support for Symptomatic Relief Obsidan Fe++ is applied in addressing conditions marked by increased physiological stress and supports general well-being during symptomatic phases of iron deficiency.

Eligibility and Restrictions for Use

Who Can and Cannot Use Obsidan Fe++?

The population eligibility for Obsidan Fe++ (Ferrous Bisglycinate) is determined by regulatory authorities and is strictly defined by a patient's iron status and clinical conditions.

Absolute Contraindications (Must Not Use)

The medicine is contraindicated and must not be used by patients who have conditions that cause excessive iron accumulation, as these could be worsened by the supplement:

  • Iron Overload Conditions: Individuals with confirmed hemochromatosis or hemosiderosis.
  • Non-Iron Deficiency Anemias: Patients with anemia not caused by a confirmed iron deficiency.
  • Hypersensitivity: Individuals with a known allergy or hypersensitivity to ferrous bisglycinate or any other component in the product.

Approved and Restricted Populations

Population Group Regulatory Status
Adults, Adolescents, Children Established for Use (Requires confirmed iron deficiency).
Pregnancy and Lactation Approved and Recommended for deficiency prevention and treatment.
Renal/Hepatic Impairment Conditional Use (Requires caution, monitoring, and potential dose adjustment).
Gastrointestinal Disorders Conditional Use (Use requires caution and monitoring due to potential for irritation).

What should I know about interactions with other medicines?

Obsidan Fe++ (ferrous iron) can interact with a wide range of other medicines, dietary supplements, and foods. These interactions often occur because iron binds to the other substances in the digestive tract, which reduces the absorption and effectiveness of both the iron and the interacting product.

To minimize these interactions, it is typically recommended to separate the administration of Obsidan Fe++ from the interacting product by a minimum of 2 to 4 hours.

Medications

Iron supplements may significantly reduce the absorption of several classes of medications, including:

  • Certain antibiotics: Tetracyclines (e.g., doxycycline, minocycline) and quinolones (e.g., ciprofloxacin, levofloxacin).
  • Thyroid hormones: Levothyroxine.
  • Bisphosphonates: Medications used for osteoporosis, such as alendronate.
  • Parkinson's disease medications: Levodopa and carbidopa.
  • Certain blood pressure and heart medications: Methyldopa and captopril.
  • Antacids and stomach acid reducers: Medicines that decrease stomach acid, such as proton pump inhibitors (omeprazole) and H2-blockers (famotidine), or antacids (calcium carbonate), can reduce the absorption of iron itself.

Other Products

  • Dairy products (e.g., milk, cheese) and calcium supplements can decrease iron absorption.
  • Tea and coffee contain substances (tannins) that can reduce iron absorption and should be avoided immediately before or after taking the supplement.

Always consult a healthcare professional before taking Obsidan Fe++ alongside any other treatment, including over-the-counter medicines, vitamins, or herbal remedies.

Mechanism of Action

Obsidan Fe++ provides the essential mineral ferrous iron (Fe^2+) required for the body's core structural and metabolic machinery. Its mechanism is rooted in optimizing the three main stages of iron utilization: absorption, transport, and incorporation.


Stable Chelation and Predictable Substrate Delivery

The mechanism begins with the drug's unique chemical structure: the Fe^2+ ion is stably bound to the amino acid glycine, forming a neutral chelate complex. This complex prevents the iron from precipitating or binding to dietary inhibitors in the gastrointestinal tract, ensuring the elemental iron is highly available for uptake across the intestinal lining.


Replenishing Oxygen Transport and Cellular Energy

Once absorbed and bound to Transferrin, the Fe^2+ acts as the necessary precursor for the Heme Synthesis Pathway in the bone marrow, which fuels the production of Hemoglobin (Hb). This ultimately increases the blood's oxygen-carrying capacity. Concurrently, the iron supports mitochondrial Cytochrome enzymes across all tissues, supporting cellular respiration and the production of ATP (cellular energy).


Limitations in Mechanistic Efficacy

The overall systemic delivery of Fe^2+ remains governed by the body's iron homeostasis system, which can functionally limit the release of iron from intestinal cells into the bloodstream by inhibiting the exporter Ferroportin when the regulatory hormone Hepcidin is elevated.

Dosage and Administration Information

How to Use Obsidan Fe++

Obsidan Fe++ (Ferrous Bisglycinate) is administered orally and is typically provided as a tablet or capsule, following the usage principles established for oral iron supplementation.


Administration Scope

The standard therapeutic daily dosage for treating iron deficiency generally falls within the range of 100 mg to 200 mg of elemental iron per day, consistent with established clinical practices for oral iron therapy. The recommended frequency pattern is once daily (QD), though the medication may also be administered using an alternate-day dosing schedule to potentially enhance absorption.

To optimize the medicine's uptake, it is generally advised to take the dose on an empty stomach, ideally one hour before or two hours after a meal. If gastrointestinal discomfort occurs, the dose may be taken with food, although this may result in reduced absorption. Specific procedural constraints dictate that the medicine should not be taken within a two-hour window of ingestion of substances that can interfere with iron absorption, such as antacids, dairy products, coffee, or tea.

Course and Handling

Treatment must be maintained until the body’s iron stores are fully replenished, which requires a long-term duration. This usage pattern involves continuing the daily or alternate-day regimen for several months, often extending for three to six months after hemoglobin levels have been normalized to ensure adequate reserve formation. For the oral dosage form, tablets or capsules must be swallowed whole with water; if a dose is missed, individuals should take only the next scheduled dose at the usual time and must not double the dose to compensate. Dosing for pediatric patients is calculated based on body weight, while use during pregnancy and lactation is based on individualized need.

Recent Clinical Evidence

Research evidence / Overview of Studies for Obsidan Fe++


Evidence for Management of Iron Deficiency Anemia (IDA)

Research exploring the use of Ferrous Bisglycinate for Iron Deficiency Anemia (IDA) has relied mainly on Randomized Controlled Trials (RCTs) and subsequent systematic analyses. These studies were conducted to examine how the iron compound was evaluated in patient populations diagnosed with IDA. Research explored outcomes related to systemic or functional imbalance, specifically by measuring the levels of key blood markers like Hemoglobin (Hb), which carries oxygen, and Serum Ferritin, which reflects the body’s iron storage. The certainty level of the evidence regarding the use of this compound in the general non-pregnant IDA population appears to be Moderate.

Evidence for Iron Supplementation During Pregnancy

The certainty level of the evidence related to Ferrous Bisglycinate for iron supplementation or prophylaxis during pregnancy is described as High in relevant scientific literature. This is based on Systematic Reviews and Meta-analyses that pooled data from numerous RCTs conducted on this specific population. Studies monitored changes in maternal Hemoglobin and Ferritin levels during supplementation, and consistently reported patterns of change in Hemoglobin status among pregnant women who received the compound when compared to other iron forms. Findings were mixed or showed variability when looking specifically at the changes in maternal Ferritin levels.

Head-to-Head Comparative Studies

A significant body of research has used head-to-head RCTs to compare Ferrous Bisglycinate directly against traditional iron salts. Studies monitored incidence rate ratios of patient-reported Gastrointestinal (GI) adverse events, such as nausea or constipation, in both compounds. Studies consistently reported patterns related to differences in the rate of patient-reported GI adverse events when Ferrous Bisglycinate was compared to traditional iron salts in trials. This comparative evidence was observed in some studies to be most robust in the pregnant population.

Evidence Gaps and Research Uncertainties

This research contributes to the broader evidence landscape but also highlights areas where certainty remains low. Long-term effects are not fully established, as most studies have limited follow-up durations. The research provides limited insight into how the compound was studied for specific patient-reported outcomes describing perceived discomfort (such as chronic fatigue or poor concentration) outside of the measurement of blood biomarkers.

Key Studies & References

  1. Guideline: Daily Iron and Folic Acid Supplementation in Pregnant Women (WHO)
  2. Ferrous Bisglycinate Chelate - GRAS Notices (GRN 19) - FDA

Frequently Asked Questions (FAQ)

Common questions about Obsidan Fe++ (FAQ)

Q: Is it normal to feel a change in my energy levels after starting Obsidan Fe++?

A: According to official information, Obsidan Fe^++ is used to treat iron deficiency, a condition that commonly causes symptoms like fatigue. The medicine's purpose is to increase Hemoglobin and replenish iron stores, which addresses the underlying deficiency often associated with fatigue. While regulatory documents do not list changes in energy as a common side effect, this mechanism supports the relief of deficiency symptoms.

Q: Can I take Obsidan Fe++ if I'm already taking vitamins?

A: Official drug interaction lists primarily caution against taking Obsidan Fe^++ with certain minerals, such as calcium supplements or antacids, as these can interfere with iron absorption. It is helpful to check the contents of all vitamin supplements for any ingredients that might interact, such as high amounts of calcium. The administration must be separated from these interfering substances by at least two hours.

Q: Are there different strengths of Obsidan Fe++ available?

A: The available forms and strengths of Obsidan Fe^++ are detailed in the official product information for its specific market. Regulatory documents list the pharmaceutical form, which may include different sizes of oral tablets or capsules, and the elemental iron content of each product strength.

Q: Is Obsidan Fe++ suitable for older adults?

A: Official product information lists Obsidan Fe^++ as established for use in adults, but notes that use in older adults may require specific caution. This is typically due to potential concurrent medical conditions or possible decline in organ function. Official documents state that any dose adjustments or changes to the treatment plan are determined by a healthcare provider.

Q: What are the most common reasons someone might be asked to stop taking Obsidan Fe++?

A: Obsidan Fe^++ therapy is typically discontinued for two primary reasons, according to official guidelines. The first is when the patient's iron deficiency is fully corrected and the body's iron stores are replenished, which is the goal of the treatment. The second is if the patient develops an absolute contraindication, such as an iron overload condition like hemochromatosis.

Q: Is it true that taking Obsidan Fe++ can cause headaches?

A: Regulatory documents detailing adverse reactions generally do not list headache as a common side effect for oral iron supplements. The most frequently reported adverse events in the official labeling relate to gastrointestinal discomfort, such as nausea, constipation, or stomach upset.

Q: Does Obsidan Fe++ contain any ingredients that cause allergic reactions?

A: The medicine is contraindicated (meaning it is not permitted for use) if a patient has a known hypersensitivity or allergy to the active substance (Ferrous Bisglycinate) or any of the inactive ingredients ( excipients) used in the tablet or capsule. These components are listed in the full regulatory product documentation.

Q: What happens if I take Obsidan Fe++ for longer than needed?

A: Regulatory warnings indicate that taking iron supplements for a duration longer than needed can lead to an accumulation of iron in the body. This iron buildup is a risk factor for iron overload conditions, such as hemochromatosis. Official guidance indicates that the appropriate treatment duration is determined by monitoring iron levels.

Q: Is Obsidan Fe++ known to affect blood pressure?

A: According to regulatory documents detailing adverse reactions, changes in blood pressure are not typically listed as a side effect of oral iron supplementation. The most common side effects are related to the gastrointestinal tract. However, some iron-containing medications administered intravenously ( IV) have been associated with rare cardiovascular events.

Q: Are there restrictions on driving or operating machinery while taking Obsidan Fe++?

A: Official labeling for Obsidan Fe^++ generally confirms that oral iron supplements have no or a negligible influence on a person's ability to drive or operate machinery. This assessment is based on regulatory evaluations of the medicine's known effects.

Q: What should I do if the side effects of Obsidan Fe++ feel too strong?

A: Regulatory patient instructions advise that if severe or worsening side effects are experienced, individuals should discontinue the medicine. Official guidance states that individuals should discontinue the medicine and consult a doctor or seek medical care for an evaluation of the symptoms and the treatment plan.

Q: Does Obsidan Fe++ affect birth control pills?

A: The official drug interaction lists for iron supplements generally do not specify an interaction with common hormonal birth control pills that would reduce contraceptive effectiveness. When starting any new medication, reviewing the full interaction list with a healthcare provider is generally necessary.

Q: Do health officials have a standard classification for Obsidan Fe++'s safety profile?

A: Health officials detail the medicine's safety profile across several required regulatory sections, including a list of Contraindications and Warnings. While this information provides a comprehensive view of safety, there is generally no single named classification or risk category assigned to oral iron supplements.

Q: Does Obsidan Fe++ need to be taken at a specific time of day?

A: Regulatory guidance indicates that the dose is generally taken once daily ( QD) and that timing should be focused on maximizing absorption, such as taking it on an empty stomach. Official documents do not mandate a specific time of day, such as only in the morning or only in the evening.

Q: Does Obsidan Fe++ interact with any common herbal supplements?

A: Regulatory documents include a general warning noting that consultation with a healthcare professional is necessary regarding the use of iron with any herbal products. This is because some herbal supplements may contain substances that can affect the absorption of iron. Specific common herbal supplements are usually not detailed in the drug's official interaction lists.

Q: Do any official warnings exist about Obsidan Fe++ and alcohol consumption?

A: Official labeling for Obsidan Fe^++ generally does not contain a specific warning about alcohol consumption. As an oral mineral replacement, its use is not typically associated with the central nervous system ( CNS) interactions that would warrant specific alcohol warnings.

Q: Is Obsidan Fe++ a 'generic' or a 'brand-name' drug?

A: Obsidan Fe^++ is the brand name (or trade name) for this medicine. The generic name, or the name of the active substance contained in the medicine, is Ferrous Bisglycinate. Regulatory product lists often provide both the brand name and the generic name for clarity.

Q: What is the typical time frame to see full benefits from Obsidan Fe++?

A: Therapeutic regulatory documents indicate that the first goal of treatment, which is the normalization of Hemoglobin levels, is typically achieved within a few weeks to months. After this initial phase, the regimen is usually continued for several months longer to fully replenish the body’s iron stores.

Q: Do studies exist on Obsidan Fe++ for populations other than its main intended group?

A: Official reviews of clinical studies primarily summarize evidence for the medicine's main intended populations, which are individuals with iron deficiency anemia and pregnant women. While other studies may exist for specific groups (such as the elderly or those with certain underlying conditions), this research is not always summarized in the standard regulatory labeling.

Q: How does the body get rid of Obsidan Fe++?

A: According to official pharmacokinetic documents, the body primarily excretes unused iron through feces. Only trace amounts of the mineral are typically eliminated via urine and sweat, as the majority of the absorbed iron is retained and utilized by the body for its metabolic processes.

Q: What is the scientific basis for the recommended use conditions of Obsidan Fe++?

A: Official use conditions are based on the body’s requirements to efficiently absorb elemental iron. The recommendation to take the medicine on an empty stomach relates to the chelated form's ability to maintain high absorption rates. Specific dosage ranges and the choice between once-daily and alternate-day dosing are determined by established guidelines for effective iron therapy.

How should Obsidan Fe++ be stored and disposed of?

Obsidan Fe++ (Ferrous Bisglycinate) must be stored and disposed of according to strict regulatory guidelines to ensure product stability and safety.

Storage Requirements

Condition Requirement (Official Labeling)
Temperature Store below 30 C.
Container Rule Keep in the original package and tightly closed to protect contents from moisture.
Child Safety Must be kept out of the sight and reach of children (a mandatory requirement for all iron products).

Disposal Instructions

To prevent environmental contamination, unused or expired Obsidan Fe++ should not be disposed of via wastewater or household waste. The medicine must be discarded according to local regulations, which typically requires returning it to a pharmacy or a designated collection program for pharmaceutical waste.

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

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