Introduction
Tervent is used to relieve symptoms of asthma and chronic obstructive pulmonary disease (COPD) such as coughing, wheezing and breathlessness. It helps in relaxing the muscles of the air passages, thus widening it and making it easier to breathe.
You can take Tervent with or without food. The dose will depend on your condition and how your respond to the medicine. Try to take it at the same time each day. It is important to keep taking this medicine until your doctor tells you not to. Use this medicine regularly to get the most benefit from it even if you feel well.
Tervent is generally safe and effective but some common side effects include headache. fast heart rate, trembling, and muscle cramps. These side effects are not often dangerous and they should gradually improve as your body gets used to this medicine. There are other, rarer, side effects and you should call your doctor straight away if you get chest pain, a very bad headache or very bad dizziness.
Before using Terventl, you should tell your doctor if you have high blood pressure, an overactive thyroid gland, a history of heart problems, diabetes or low levels of potassium in your blood to make sure it is safe. Also make sure your doctor knows if you are pregnant or breastfeeding before taking this medicine. Because this medicine can make you feel dizzy or shaky, do not drive, cycle or use tools or machinery until you feel better. You should not smoke as it causes damage to your lungs and will make your condition worse.
Uses of Tervent
- Asthma
- Chronic obstructive pulmonary disease (COPD)
Side effects of Tervent
Common
- Headache
- Palpitations
- Muscle weakness
- Decreased potassium level in blood
- Trembling
How to use Tervent
Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a measuring cup and take it by mouth. Shake well before use. Tervent may be taken with or without food, but it is better to take it at a fixed time.
How Tervent works
Tervent is a bronchodilator. It works by relaxing the muscles in the airways and widens airways. This makes breathing easier.
Indication
Acute bronchospasm
Administration
May be taken with or without food.
Adult Dose
Oral
Acute bronchospasm
Adult: Initiate at 2.5 mg three/four times daily
Maintenance: 5 mg three times daily q6hr while patient is awake; reduce dose to 2.5 mg q6hr
Not to exceed 15 mg/Day
Child Dose
Oral
Acute bronchospasm
Child: <12 years: 0.05 mg/kg three times daily initially; increase PRN, not to exceed 5 mg/day
12-15 years: 2.5 mg PO q6hr 3 times daily; not to exceed 7.5 mg/day
>15 years: 5 mg/dose PO q8hr three times daily; reduce dose to 2.5 mg q6hr; not to exceed 15 mg/24hr
Renal Dose
Renal Impairment
GFR <50 mL/min: reduce dose by 50%
GFR >50mL/min: Dose adjustment not necessary
Contraindication
Hypersensitivity to sympathomimetics. Any condition of mother or foetus in which prolongation of pregnancy is dangerous.
Mode of Action
Terbutaline is a direct-acting sympathomimetic which relaxes bronchial smooth muscle by selective action on beta2 receptors. It also decreases uterine contractility.
Precaution
Patient w/ thyrotoxicosis, HTN, DM, ketoacidosis, CV disorders (e.g. ischaemic heart disease), convulsive disorders, coronary insufficiency or associated arrhythmias. Childn. Pregnancy and lactation. Monitoring Parameters Monitor cardiorespiratory function, serum K and glucose levels;
Lactation: Distributed into breast milk, but in amounts generally considered insufficient to affect nursing infants (AAP Committee states compatible with nursing)
Side Effect
Tachycardia, nervousness, tremor, palpitations, dizziness, headache, nausea, vomiting, anxiety, restlessness, lethargy, drowsiness, weakness, flushes, sweating, chest discomfort, muscle cramps, tinnitus. Rarely, seizures, hypersensitivity vasculitis, elevated liver enzymes.
Potentially Fatal: Increased heart rate, transient hyperglycaemia, hypokalaemia, cardiac arrhythmias, pulmonary oedema, myocardial ischaemia.
Interaction
Antagonised effects of beta-blockers. Increased risk of hypokaelemia with xanthine derivatives, corticosteriods and diuretics; increased risk of arrhythmias with inhaled anaesthetics, sympathomimetics.