•  Telmisartan 40 mg
•  Hydrochlorothiazide 12.5 mg
•  Plus excipients (tablet binders, coatings, etc.) as per specific brand’s formulation (not usually disclosed in summary sources) 

•  May take with or without food. 
•  Some labels advise avoiding taking close to bedtime to reduce nocturnal diuresis. 
•  Continue treatment even if you feel well; blood pressure control often requires ongoing therapy. 

• Dizziness, lightheadedness (especially on standing) 

• Upper respiratory tract infection / nasopharyngitis 

• Nausea, diarrhea 

• Tiredness / fatigue 

• Electrolyte disturbances (e.g. low potassium, sodium) because of diuretic effect 

• Increased urination (especially early)

• Possible increases in blood glucose or uric acid levels

• Rare but serious: kidney dysfunction, hypersensitivity reactions, electrolyte imbalance, hypotension 

Store at room temperature (typically 20–25 °C)

•  Protect from moisture and light
•  Keep in original packaging until use
•  Keep out of reach of children
•  Avoid extreme heat or freezing (depending on local label)

•  Not to be used in patients with severe renal impairment or anuria
•  Use caution in patients with hepatic impairment
•  May worsen electrolyte imbalance; monitor potassium, sodium, magnesium
•  Avoid in patients with gout (hydrochlorothiazide may raise uric acid)
•  Monitor for signs of dehydration or volume depletion
•  Use caution in diabetics (may affect blood glucose)
•  May increase sensitivity to sunlight; patients should use sunscreen and protective clothing 
•  Avoid or use caution if using potassium supplements or potassium-sparing diuretics (risk of hyperkalemia)
•  Interactions: NSAIDs may reduce antihypertensive effect, other RAAS blockers, lithium, other diuretics etc.
•  If undergoing surgery, notify surgeon/anaesthetist you are on this medicine
•  Do not stop abruptly without consulting physician
•  Monitor kidney function and electrolytes periodically

Other generic combinations of telmisartan/HCTZ 40/12.5 mg (or alternative ARB + thiazide combinations), or separate agents (e.g. telmisartan + a separate thiazide diuretic) depending on clinical decision.

Examples: Micardis HCT (brand) 

The combination is marketed under various brand names depending on region (e.g. Micardis HCT in many markets) 

Local generics may be manufactured by different pharmaceutical companies in your country