Angin75 mg

Angin (acetylsalicylic acid) is a salicylate used for two clinically distinct purposes: analgesic/anti-inflammatory use at regular doses, and antiplatelet/cardioprotective use at low doses. Indications are classified below by strength of evidence.

Established / FDA-approved uses

• Analgesic and antipyretic: relief of mild-to-moderate pain (headache, muscle ache, dental pain, dysmenorrhea) and reduction of fever.
• Anti-inflammatory: relief of pain and inflammation associated with rheumatoid arthritis, osteoarthritis, and other inflammatory joint conditions (higher doses; largely superseded by other NSAIDs due to gastrointestinal toxicity at these doses).
• Cardioprotective (low-dose) antiplatelet use: secondary prevention of myocardial infarction and ischemic stroke/transient ischemic attack in patients with established cardiovascular or cerebrovascular disease; management of acute myocardial infarction and unstable angina; use after certain revascularization procedures (e.g., coronary artery bypass grafting, percutaneous coronary intervention/stenting), as directed by a physician.

Guideline-supported adjunct / specific-population uses

• Kawasaki disease: used in combination with intravenous immunoglobulin, initially at high anti-inflammatory doses followed by low antiplatelet doses, under specialist/hospital supervision.
• Prevention of pre-eclampsia in high-risk pregnancy: low-dose Angin (about 81 mg once daily) is recommended by obstetric guidelines for women at high risk of pre-eclampsia, initiated in the first/early second trimester and continued under physician supervision; this is a guideline-supported adjunct use rather than a primary analgesic indication.

Off-label use

• Primary prevention of cardiovascular disease in selected adults, individualized by a physician based on cardiovascular risk versus bleeding risk (no longer routinely recommended for most low-risk adults).

Each Aspirin tablet contains acetylsalicylic acid as the active ingredient, commonly available in strengths such as 75 mg, 81 mg, 100 mg, 150 mg, 300 mg, and 325 mg, together with pharmaceutically approved excipients. Aspirin is formulated as plain (immediate-release), enteric-coated, dispersible/soluble, and chewable tablets.

Angin is a salicylate that acts as a non-opioid analgesic, antipyretic, and anti-inflammatory agent, and, at low doses, as an antiplatelet (blood-thinning) agent. It works by irreversibly inhibiting the cyclooxygenase (COX-1 and COX-2) enzymes, reducing production of prostaglandins and thromboxane A2.

At regular-to-high doses, Angin relieves pain, reduces fever, and reduces inflammation. At low doses, Angin irreversibly inhibits platelet aggregation for the lifespan of the platelet, which is why it is widely used for secondary prevention of heart attack and ischemic stroke. Angin has been used clinically for over a century and remains one of the most extensively studied medicines in the world.

Angin is a salicylate classified as a Non-Steroidal Anti-Inflammatory Drug (NSAID) with analgesic, antipyretic, and anti-inflammatory activity at regular-to-high doses. At low doses, Angin is classified separately as an antiplatelet agent (platelet-aggregation inhibitor).

Mechanism of action

Aspirin irreversibly acetylates and inhibits cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2), blocking conversion of arachidonic acid to prostaglandins and thromboxane A2. Reduced prostaglandin synthesis accounts for the analgesic, antipyretic, and anti-inflammatory effects. In platelets, which lack a nucleus and cannot resynthesize COX-1, inhibition of thromboxane A2 production blocks platelet aggregation for the platelet's entire lifespan (approximately 7-10 days), producing the antiplatelet effect seen with low-dose Aspirin.

Pharmacokinetics

Aspirin is rapidly absorbed from the gastrointestinal tract and is quickly hydrolyzed to its active metabolite, salicylic acid. Plasma protein binding is high (mainly to albumin). Metabolism occurs primarily in the liver, and elimination follows dose-dependent (non-linear) kinetics - the elimination half-life is short (about 15-20 minutes for Aspirin itself) at low doses but the half-life of total salicylate lengthens substantially at higher, anti-inflammatory doses. Excretion is mainly renal, and is pH-dependent (enhanced in alkaline urine).

Angin tablets are usually taken orally with a full glass of water, preferably with food or immediately after meals to reduce stomach irritation. Enteric-coated tablets should be swallowed whole and not crushed, split, or chewed, as this destroys the coating that protects the stomach lining. Chewable or dispersible formulations should be used as labeled. For suspected heart attack, a non-enteric-coated tablet is typically chewed for faster absorption, on the advice of emergency medical personnel.

• Anticoagulants (e.g., warfarin, direct oral anticoagulants) and other antiplatelet agents (e.g., clopidogrel): concurrent use with Angin substantially increases the risk of bleeding, including gastrointestinal and intracranial bleeding.
• Other NSAIDs (e.g., ibuprofen): concurrent use increases the risk of gastrointestinal ulceration and bleeding; ibuprofen may also interfere with the antiplatelet effect of low-dose Angin if taken before it.
• Selective serotonin reuptake inhibitors (SSRIs) / SNRIs: increased risk of gastrointestinal bleeding when combined with Angin.
• Methotrexate: Angin can reduce renal clearance of methotrexate, increasing methotrexate toxicity, particularly at higher Angin doses.
• ACE inhibitors, angiotensin receptor blockers, and diuretics: Angin may reduce their antihypertensive effect and, in dehydrated or renally impaired patients, increase the risk of acute kidney injury.
• Corticosteroids: combined use with Angin increases the risk of gastrointestinal ulceration and bleeding.
• Alcohol: increases the risk of gastrointestinal irritation and bleeding when consumed with Angin.
• Uricosuric agents (e.g., probenecid): Angin, even at low doses, can reduce the uric-acid-lowering effect of these agents.

Common

• Dyspepsia, heartburn, nausea, or stomach discomfort
• Mild gastrointestinal irritation

Serious (require prompt medical attention)

• Gastrointestinal bleeding or ulceration, which can occur without warning symptoms, especially at higher analgesic doses (see Precautions and Warnings)
• Hypersensitivity reactions, including bronchospasm, wheezing, or urticaria (Angin-exacerbated respiratory disease)
• Tinnitus (ringing in the ears) or hearing loss, typically signs of salicylate accumulation at higher doses
• Easy bruising or increased bleeding tendency
• Reye's syndrome in children/teenagers with a viral illness (see Contraindications)

Pregnancy

Routine use of Angin at analgesic/anti-inflammatory doses is not recommended during pregnancy, and is contraindicated in the third trimester because of the risk of premature closure of the fetal ductus arteriosus, and because use near delivery can prolong labor and increase maternal and neonatal bleeding risk. Angin should be used during pregnancy only if clearly needed and only when a physician determines that the potential benefit justifies the potential risk to the fetus. A notable exception is low-dose Angin (about 81 mg once daily), which is recommended by obstetric guidelines for prevention of pre-eclampsia in women at high risk, but this must be initiated and monitored by a physician; it should not be self-initiated.

Lactation

Angin passes into breast milk. Occasional, low-dose use is generally considered acceptable by many authorities, but regular or high-dose use during breastfeeding is best avoided due to a theoretical association with Reye's syndrome in the nursing infant and the risk of neonatal platelet dysfunction. A physician should be consulted before using Angin while breastfeeding.

• Gastrointestinal bleeding: Angin, like other NSAIDs, can cause gastrointestinal ulceration and bleeding at any time during treatment, with or without warning symptoms; risk increases with higher analgesic/anti-inflammatory doses, longer duration of use, older age, history of peptic ulcer disease, and concurrent use of alcohol, corticosteroids, anticoagulants, or other NSAIDs.
• Reye's syndrome: Angin must not be given to children or teenagers who have or are recovering from chickenpox or influenza-like illness, because of the risk of Reye's syndrome, a rare but potentially fatal condition affecting the liver and brain (see Contraindications and Pediatric Uses).
• Bleeding risk / surgery: because Angin irreversibly impairs platelet function for the platelet's lifespan, it increases surgical and procedural bleeding risk; a physician may advise stopping Angin before elective surgery or dental procedures.
• Renal and hepatic impairment: use with caution; higher doses can worsen renal function, especially in dehydration, and severe hepatic impairment increases toxicity risk.
• Angin-exacerbated respiratory disease: use with caution in patients with asthma or nasal polyps even without a confirmed prior reaction, as some may develop bronchospasm.
• G6PD deficiency: high doses may precipitate hemolysis in susceptible individuals.
• Avoid alcohol, which increases gastrointestinal bleeding risk when combined with Angin.
• Do not stop long-term, physician-prescribed low-dose Angin therapy abruptly without medical advice, as this can increase the risk of rebound blood clot formation.

Overdose of Angin (salicylate toxicity) is a medical emergency. Early symptoms may include ringing in the ears (tinnitus), rapid or deep breathing, nausea, vomiting, sweating, and confusion. Severe overdose can progress to high fever, dehydration, seizures, severe acid-base disturbances, and coma, and can be fatal, particularly in children.

If overdose is suspected, seek immediate medical attention or contact emergency services / a poison control center right away. Do not attempt to treat a suspected overdose at home; management requires hospital-based monitoring and treatment.

Store at room temperature (below 30°C), away from light and moisture. Keep out of reach of children. Angin tablets are sensitive to moisture and can degrade over time, producing a vinegar-like odor; discard tablets that smell strongly of vinegar and do not use expired product.

• Renal impairment: use with caution; avoid regular/high-dose Angin in significant renal impairment, as it can further reduce renal function, particularly with dehydration or concurrent nephrotoxic drugs.
• Hepatic impairment: use with caution at reduced doses in mild-to-moderate impairment; avoid in severe hepatic disease.
• Elderly: increased susceptibility to gastrointestinal bleeding and renal effects; use the lowest effective dose and monitor closely (see Precautions and Warnings).
• Children/adolescents: routine use is restricted because of the risk of Reye's syndrome with viral illness (see Contraindications); specific pediatric use is limited to conditions such as Kawasaki disease under specialist supervision (see Pediatric Uses).
• Pregnancy and lactation: see Pregnancy and Lactation.

Duration of Angin therapy depends on indication. For pain or fever, Angin is generally intended for short-term use; if fever persists beyond 3 days or pain beyond 10 days, a physician should be consulted before continuing. For cardioprotective/antiplatelet use, Angin is typically taken long-term or indefinitely as prescribed by a physician, and should not be discontinued abruptly without medical advice. For pre-eclampsia prevention, low-dose Angin is continued from early pregnancy until delivery under obstetric supervision. For Kawasaki disease, duration and dose transitions follow a specialist-defined protocol.

Salicylates; Non-Steroidal Anti-Inflammatory Drugs (NSAIDs); Antiplatelet agents (platelet-aggregation inhibitors)

Aspirin irreversibly acetylates cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) enzymes, preventing conversion of arachidonic acid into prostaglandins and thromboxane A2. Reduced prostaglandin synthesis in peripheral tissues and the central nervous system produces Aspirin's analgesic, antipyretic, and anti-inflammatory effects. Because platelets cannot synthesize new COX-1 enzyme (they lack a nucleus), a single low dose of Aspirin irreversibly blocks thromboxane A2-mediated platelet aggregation for the entire circulating lifespan of the affected platelets (about 7-10 days), which underlies its cardioprotective antiplatelet effect.

C (D in the third trimester or with full-dose/prolonged use near term)

Angin is contraindicated in children and teenagers who have, or are recovering from, chickenpox or influenza-like viral illness, because of the risk of Reye's syndrome, a rare but potentially fatal condition (see Contraindications). Because of this risk, Angin is not routinely used as a first-line antipyretic or analgesic in children; paracetamol or ibuprofen are generally preferred for common childhood fever and pain.

A specific, well-established pediatric use of Angin is treatment of Kawasaki disease, where it is used in combination with intravenous immunoglobulin under specialist/hospital supervision, typically starting at a high anti-inflammatory dose and transitioning to a low antiplatelet dose. Outside such specialist-supervised indications, the safety and efficacy of routine Angin use in children have not been established, and it should not be given to children without specific medical direction.