Teltab40 mg

Hypertension

Teltab is indicated for the treatment of essential hypertension in adults. Teltab may be used alone or in combination with other antihypertensive medicines when blood pressure is not adequately controlled on Teltab alone. This is an established, guideline-supported use of Teltab.

Cardiovascular Risk Reduction

Teltab is also indicated to reduce the risk of myocardial infarction, stroke, or death from cardiovascular causes in patients 55 years of age or older who are at high risk of cardiovascular events (for example, due to coronary artery disease, peripheral arterial disease, stroke, transient ischaemic attack, or high-risk diabetes with evidence of end-organ damage) and who are unable to take ACE inhibitors. This use of Teltab is guideline-supported and specialist-directed, and is not a routine first-line use of Teltab in the general hypertensive population.

After oral administration, Telmisartan is absorbed with peak plasma concentrations of Telmisartan reached within about 0.5 to 1 hour. The absolute bioavailability of Telmisartan is dose-dependent, ranging from approximately 42% at a 40 mg dose to 58% at a 160 mg dose, and food modestly reduces the absorption of Telmisartan. Telmisartan is more than 99.5% bound to plasma proteins and has a large volume of distribution. Telmisartan is metabolized by conjugation to a pharmacologically inactive acyl glucuronide and is not significantly metabolized by the cytochrome P450 enzyme system. Telmisartan is eliminated primarily unchanged via biliary excretion into the feces (over 97%), with less than 1% excreted in urine; the terminal elimination half-life of Telmisartan is approximately 24 hours, which supports once-daily dosing of Telmisartan.

• Take Teltab by mouth once daily, at about the same time each day.
• Teltab can be taken with or without food.
• Swallow the Teltab tablet with a glass of water; do not crush or chew Teltab unless advised by a healthcare professional.
• Keep Teltab in its original blister pack until just before taking it, as Teltab tablets are sensitive to moisture.
• If a dose of Teltab is missed, take Teltab as soon as remembered; if it is almost time for the next dose, skip the missed dose of Teltab rather than doubling up.
• Continue taking Teltab as prescribed even when feeling well, since blood pressure control with Teltab requires regular use.
• Do not stop taking Teltab without consulting a doctor, especially if pregnancy is suspected (see Pregnancy and Lactation).

• ACE inhibitors (e.g., ramipril): Combining Teltab with an ACE inhibitor increases the risk of low blood pressure, high potassium, and reduced kidney function without added cardiovascular benefit (dual blockade of the renin-angiotensin system); this combination with Teltab is generally not recommended.
• Aliskiren: Concomitant use of Teltab with aliskiren is not recommended, and is specifically avoided in patients with diabetes, because of an increased risk of hyperkalemia, hypotension, and reduced kidney function.
• Potassium-sparing diuretics, potassium supplements, or potassium-containing salt substitutes: Using these with Teltab can raise blood potassium levels (hyperkalemia), particularly in patients with kidney disease, heart failure, or diabetes; periodic monitoring of serum potassium is advised during Teltab therapy.
• NSAIDs (e.g., ibuprofen) and COX-2 inhibitors: Regular use with Teltab may reduce the blood-pressure-lowering effect of Teltab and can worsen kidney function, especially in elderly, volume-depleted, or renally impaired patients.
• Lithium: Teltab can increase blood lithium levels and the risk of lithium toxicity; lithium levels should be monitored closely when lithium is used together with Teltab.
• Digoxin: Teltab can increase peak and trough digoxin concentrations; digoxin levels should be monitored when digoxin is used together with Teltab.

Common Side Effects

• Upper respiratory tract infection-like symptoms (cough, sore throat)
• Back pain
• Sinusitis
• Diarrhea
• Dizziness or headache
• Fatigue
• Nausea or indigestion
• Muscle cramps

Serious Side Effects - Seek Medical Attention

• Signs of angioedema while taking Teltab: swelling of the face, lips, tongue, or throat, or difficulty breathing or swallowing (rare, but can be life-threatening; fatal cases have been reported)
• Symptoms of significant low blood pressure while taking Teltab: severe dizziness, fainting, or syncope, particularly after the first dose or in patients who are dehydrated
• Signs of high potassium (hyperkalemia) while taking Teltab: muscle weakness, irregular heartbeat
• Signs of kidney problems while taking Teltab: reduced urination, swelling, unusual tiredness (risk of acute renal failure, especially with pre-existing kidney disease, heart failure, or dehydration)
• Signs of liver problems while taking Teltab: yellowing of skin or eyes, dark urine
• Unexplained muscle pain, tenderness, or weakness while taking Teltab (very rare reports of rhabdomyolysis)
• Signs of anaphylaxis or severe allergic/skin reactions to Teltab

Pregnancy

Teltab is contraindicated during pregnancy. Drugs that act directly on the renin-angiotensin system, including Teltab, can cause injury and even death to the developing fetus. When Teltab is used in the second and third trimesters, Teltab has been associated with oligohydramnios (low amniotic fluid), fetal lung hypoplasia, skeletal deformations, skull hypoplasia, fetal kidney failure (anuria), and neonatal death. Data on first-trimester exposure to Teltab are more limited, and available epidemiologic studies have not clearly distinguished a specific pattern of malformation from other antihypertensive medicines; however, because Teltab carries no established safe window during pregnancy, Teltab should be discontinued as soon as pregnancy is confirmed and should not be restarted. Women who are pregnant or planning pregnancy should discuss alternative antihypertensive options with their doctor instead of continuing Teltab. If continued exposure to Teltab has occurred, serial ultrasound examinations are recommended, and newborns exposed to Teltab in utero should be monitored for low blood pressure, low urine output, and high potassium.

Breastfeeding

There is no published human data on whether Teltab passes into breast milk or on the effects of Teltab on a breastfed infant. Because this information is not available, and because alternative antihypertensive medicines with more breastfeeding safety data exist, breastfeeding is generally not recommended during Teltab therapy, particularly while nursing a newborn or preterm infant. Mothers who need an antihypertensive medicine while breastfeeding should discuss alternatives to Teltab with their doctor.

• Fetal toxicity: Teltab can cause fetal injury and death when used during pregnancy; see Pregnancy and Lactation for full details.
• Symptomatic hypotension: Excessive low blood pressure may occur with Teltab, especially in patients who are volume- or salt-depleted (e.g., from diuretic use, a low-salt diet, vomiting, or diarrhea); correct volume depletion before starting Teltab, and initiate Teltab under medical supervision in such patients.
• Hyperkalemia: Teltab can raise blood potassium levels, particularly in patients with kidney impairment, diabetes, or heart failure, or when Teltab is combined with potassium-sparing agents; periodic monitoring of serum potassium is advised (see Interactions).
• Renal function changes: As with other drugs that affect the renin-angiotensin system, Teltab may worsen kidney function in patients whose kidney function depends on this system (e.g., severe heart failure or renal artery stenosis); renal function should be monitored during Teltab therapy.
• Hepatic impairment: Teltab is eliminated mainly through the bile, so patients with hepatic impairment or biliary obstruction should be started on a lower dose of Teltab with close monitoring, since plasma levels of Teltab can rise substantially.
• Dual blockade of the renin-angiotensin system: Combining Teltab with an ACE inhibitor or aliskiren increases the risk of hypotension, hyperkalemia, and reduced kidney function without added benefit and is generally not recommended (see Interactions).
• Pregnancy and pediatric limitations: The pregnancy contraindication of Teltab and the pediatric limitations of Teltab are described in the Pregnancy and Lactation and Pediatric Uses sections.

Limited data are available on Teltab overdose in humans. The most likely effects of a Teltab overdose are related to the blood-pressure-lowering action of Teltab and include hypotension (low blood pressure) and dizziness; a fast, or less commonly slow, heart rate may also occur. If an overdose of Teltab is suspected, contact a doctor, hospital emergency department, or a poison control service immediately. Do not induce vomiting unless specifically directed to do so by a healthcare professional or poison control service. Treatment of Teltab overdose is supportive, based on the symptoms present; Teltab is not removed from the body by hemodialysis.

Store Teltab tablets at room temperature (around 25°C/77°F; brief excursions between 15-30°C/59-86°F are permitted), protected from moisture and light. Keep Teltab tablets in their original blister pack and remove a Teltab tablet only immediately before it is taken, since Teltab tablets are sensitive to moisture. Keep Teltab out of the reach of children. Always check the product label for the specific storage instructions applicable to the marketed brand or pack of Teltab.

Children

The safety and effectiveness of Teltab have not been established in patients under 18 years of age, and no pediatric dose of Teltab has been defined. See Pediatric Uses for further detail.

Elderly

No overall differences in the effectiveness or safety of Teltab were observed between elderly and younger adult patients in clinical trials, and no initial dose adjustment of Teltab is required based on age alone; however, individual sensitivity to the blood-pressure-lowering effects of Teltab may be greater in some older patients.

Renal Impairment

No dosage adjustment of Teltab is required for patients with mild to moderate renal impairment. Teltab is not removed by hemodialysis. Patients with severe renal impairment or those on dialysis should be monitored closely during Teltab therapy, as changes in renal function may occur, particularly if renal function depends on the renin-angiotensin system.

Hepatic Impairment

Teltab is eliminated mainly through biliary excretion, so plasma levels of Teltab increase substantially in patients with hepatic impairment or obstructive biliary disease. Teltab should be used with caution and started at a lower dose in these patients, with close monitoring.

Pregnant and Breastfeeding Women

Teltab is contraindicated in pregnancy and is generally not recommended during breastfeeding; see Pregnancy and Lactation for full detail.

Teltab is generally used long-term for the ongoing control of high blood pressure, since hypertension usually requires continuous treatment rather than a short course of Teltab. The full blood-pressure-lowering effect of Teltab typically develops within about 4 weeks of starting or adjusting the dose of Teltab. When Teltab is used for cardiovascular risk reduction in high-risk patients, Teltab is intended for long-term use as directed by a specialist. The duration of Teltab therapy should be determined by a healthcare professional based on blood pressure response, tolerability, and overall cardiovascular risk, and Teltab should not be stopped abruptly without medical advice.

Telmisartan selectively blocks the binding of angiotensin II to the AT1 receptor found in vascular smooth muscle and the adrenal gland. By blocking this receptor, Telmisartan prevents the vasoconstriction and aldosterone-secreting effects of angiotensin II, resulting in relaxation of blood vessels and a lowering of blood pressure. Telmisartan has more than 3,000-fold greater affinity for the AT1 receptor than the AT2 receptor, and Telmisartan does not inhibit the angiotensin-converting enzyme (ACE) or affect bradykinin breakdown.

The safety and effectiveness of Teltab have not been established in children and adolescents under 18 years of age, and the FDA label for Teltab states this explicitly; no pediatric dose of Teltab has been defined. Current guideline-level pediatric hypertension recommendations (e.g., from the American Academy of Pediatrics) list angiotensin II receptor blockers as one of several acceptable classes of initial antihypertensive medicine in children and adolescents, alongside ACE inhibitors, long-acting calcium channel blockers, and thiazide diuretics. However, this class-level guideline support does not equate to established pediatric labeling for Teltab specifically, and any pediatric use of Teltab would be off-label and should only be undertaken by a pediatric specialist with individualized dosing of Teltab and close monitoring. Infants exposed to Teltab in utero require monitoring after birth for hypotension, oliguria (reduced urine output), and hyperkalemia, as noted in Pregnancy and Lactation.