SIDE EFFECTS: Like other angiotensin receptor blockers, telmisartan generally is well-tolerated. The most common side effects are:
- back pain,
- stomach upset,
- upper respiratory tract infections,
- hyperkalemia, and
Patients also may experience impotence, reduced renal function, and allergic reactions. Rhabdomyolysis (inflammation and destruction of muscle) and angioedema (swelling of soft tissues including those of the throat and larynx) are rare but serious side effects of telmisartan.
GENERIC AVAILABLE: No
PREPARATIONS: Tablets: 20, 40, and 80 mg.
STORAGE: Telmisartan should be stored at room temperature, 15 C - 30 C (59 F - 86 F). The tablets should be kept in their blister-pack packaging until they are used.
DOSING: The recommended dose for treating hypertension is 20-80 mg daily. The recommended dose for cardiovascular risk reduction is 80 mg daily.
DRUG INTERACTIONS: Telmisartan can increase blood concentrations of digoxin (Lanoxin) and lithium (Eskalith, Lithobid). Therefore blood levels of digoxin and lithium should be monitored and doses adjusted if necessary.
Combining telmisartan with potassium-sparing diuretics (for example., spironolactone (Aldactone), triamterene, amiloride), potassium supplements, or salt substitutes containing potassium may lead to hyperkalemia (elevated potassium in the blood).
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