How long does it take for Propranolol Hydrochloride Tablets to take effect?
Recently, I have been experiencing some arrhythmia. I bought propranolol hydrochloride tablets at the pharmacy, but after taking them, there was no improvement for a long time. May I ask how long does it take for propranolol hydrochloride tablets to take effect?
Doctor's answer (1)
Propranolol Hydrochloride Tablets are a non-selective beta-blocker commonly used in the treatment of cardiovascular diseases such as hypertension, angina pectoris, and arrhythmia. Propranolol Hydrochloride Tablets usually begin to take effect about 20-30 minutes after administration, and it may take 1-2 hours to reach peak effect. This is because the drug is absorbed through the gastrointestinal tract into the bloodstream and reaches a certain concentration in the blood, thereby beginning to exert its therapeutic effect.
For rapid relief of acute symptoms, such as during an angina attack, sublingual administration can result in faster onset of action, usually within 5-10 minutes. The onset time of Propranolol Hydrochloride Tablets may vary among individuals. In patients with heart conditions such as heart failure or conduction block, where bradycardia may be present, the onset time of Propranolol Hydrochloride Tablets may be prolonged.
Propranolol Hydrochloride Tablets should be used strictly according to medical instructions. Dosage should not be adjusted or discontinued arbitrarily to avoid adverse reactions or recurrence of symptoms. If any adverse effects occur after taking Propranolol Hydrochloride Tablets, prompt medical attention should be sought.
